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MR346CLIO1

This document presents the generic fault finding procedure applicable to all EDC15VM+ DIESEL INJECTION computers fitted on the CLIO II F9Q782. To undertake fault finding on this system, it is essential to have the following items available: - this section of the Workshop repair Manual, - the wiring diagram of the function on the vehicle concerned.

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100% found this document useful (7 votes)

6K views364 pages

MR346CLIO1

Uploaded by

chiki64

We take content rights seriously. If you suspect this is your content, claim it here.

Available Formats

Download as PDF, TXT or read online on Scribd

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Engine and peripherals

DIESEL INJECTION PETROL INJECTION

77 11 304 362
"The repair methods given by the manufacturer in this document are based on the technical specifications current when it was prepared. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which his vehicles are constructed."

JUNE 2001
All copyrights reserved by Renault.

EDITION ANGLAISE

Copying or translating, in part or in full, of this document or use of the service part reference numbering system is forbidden without the prior written authority of Renault.

RENAULT 2001

Engine and peripherals

Contents
Page Page Sirius 34 injection Program No. E5 - Vdiag No. 04 Introduction Fault interpretation Conformity check Command interpretation Customer complaints Fault finding chart 17-207 17-211 17-267 17-275 17-283 17-284

13 DIESEL INJECTION
EDC15 VM+ injection Vdiag No.: 04 Introduction Fault interpretation Conformity check Status interpretation Customer complaints Fault finding chart 13-1 13-5 13-51 13-62 13-67 13-68

17 PETROL INJECTION
Sagem 2000 Injection Program No. A3 - Vdiag No. 08 Introduction Fault interpretation Conformity check Status interpretation Parameter interpretation Command interpretation Help Customer complaints Fault finding chart 5NR injection Program No.: from 24 - Vdiag No. 04 Introduction Fault interpretation Conformity check Status interpretation Customer complaints Fault finding chart 17-123 17-128 17-187 17-193 17-199 17-200 17-1 17-3 17-79 17-88 17-101 17-109 17-114 17-118 17-119

Ensure that the battery is correctly charged. If it is not, carry out fault finding on the charging circuit. Connect the bornier in place of the computer to ensure the presence of a 12 volt supply on tracks 1, 2 and 37 of the computer. These supplies must be equal to the voltage measured at the battery terminals ( 0.5 volts). If the previously checked supplies are not present or are not equal to the voltage measured at the battery terminals, connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 18 computer track 1 computer track 2 computer track 37 computer track 4 computer track 5 Repair if necessary. track 2 of the main relay (main relay control) track 5 of the injection locking relay (self-supply) track 5 of the injection locking relay (self-supply) injection fuse: + after ignition feed (see vehicle diagram) earth earth

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults. Reconfigure the computer if it has been replaced.
INJ.EDC15VM+1.1

13-5

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF001 CONTINUED

If the previously checked connections are correct but the 12 volt supply is still not present on tracks 1 and 2 of the computer: replace the injection locking relay (main relay). If the 12 volt supply is still not present on track 37 of the computer: check the injection fuse (see vehicle diagrams). Replace if necessary. If the supplies and earths of the computer are correct but if the fault is still present, replace the injection computer.

2.DEF

NOTES

Only apply this fault finding procedure if a fault is present with 2.DEF.

Ensure that the air vent on the computer is not blocked. Clean if necessary. Replace the injection computer.

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults. Reconfigure the computer if it has been replaced.
INJ.EDC15VM+1.1

13-6

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF002 PRESENT OR STORED

COOLANT TEMPERATURE SENSOR CIRCUIT

CO.0 : OPEN CIRCUIT OR SHORT CIRCUIT TO EARTH CO.1 : OPEN CIRCUIT OR SHORT CIRCUIT TO +12V 1.DEF : INCONSISTENT SIGNAL

NOTES

None.

CO.0 CO.1

NOTES

Only apply this fault finding procedure if a fault is present with CO.0 or CO.1.

Check the connection and condition of the coolant temperature sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 112 computer track 104 Repair if necessary. Check the resistance value of the sensor by measuring between: track 2 and track 3 of the coolant temperature sensor and replace the sensor if the resistance is not approximately: 2252 112 at 25C. (For more details, consult the electrical properties of the sensor as a function of temperature in the repair method). Check for the presence of a 5 volt supply on track B1of the sensor. If there is no supply, change the injection computer. If the fault persists, change the coolant temperature sensor. track 3 of the coolant temperature sensor track 2 of the coolant temperature sensor

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-7

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF002 CONTINUED

1.DEF

NOTES

Condition for applying the fault finding procedure to the stored fault. The fault is declared present following an engine speed above 950 rpm.

Check the conformity of the engine cooling system circuit: radiator in good condition, unobstructed flow of cooling air (radiator not obstructed by leaves, etc.), coolant correctly bled, etc. Using the diagnostic tool, monitor the temperature of the engine coolant (PR002). After starting (cold engine), at idle speed the temperature should rise uniformly without wavering. If the temperature rise is not linear (temperature curve rises or falls sharply), change the coolant temperature sensor. If the fault persists, change the coolant temperature sensor.

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-8

EDC 15 VM+ Vdiag No.: 04

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-11

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF012 CONTINUED

If the supply is still not present or correct on tracks 1 and 2 of the computer, replace the main relay.

2.DEF

NOTES

Condition for applying the fault finding procedure to the stored fault. The fault is declared present following a road test at a vehicle speed above 2 mph (5 km/h) for 10 seconds.

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-12

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF014 PRESENT OR STORED

ELECTRICAL SOLENOID CIRCUIT

1.DEF: INCONSISTENCY 2.DEF: OPEN CIRCUIT, SHORT CIRCUIT TO EARTH OR SHORT CIRCUIT TO +12V

NOTES

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after starting the engine, allowing it to warm up to reach a coolant temperature of 50C, switching the engine and the ignition off, waiting for the end of the computer self-supply period and then switching the ignition back on again.

Check the connection and condition of the electrical solenoid terminal. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 120 Repair if necessary. Using the diagnostic tool, start the command: AC035 electrical solenoid. The tool should display: command complete and it should be possible to hear the electrical solenoid closing. If the command was not performed correctly: Check the resistance value of the solenoid valve by measuring between: The round electrical solenoid terminal and earth and replace the electrical solenoid if its resistance is not approximately: 7.5 1 at 25C. If the fault persists, remove the electrical solenoid and ensure that it is not seized mechanically. Replace if necessary. If the problem persists, replace the electrical solenoid. round electrical solenoid terminal

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-13

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF019 PRESENT OR STORED

AIR FLOW SENSOR CIRCUIT

CC.1 : SHORT CIRCUIT TO +12V CO.0 : OPEN CIRCUIT OR SHORT CIRCUIT TO EARTH 1.DEF : SENSOR SUPPLY PROBLEM

Priority for dealing with a combination of faults: Deal first with the "DF058 sensor reference voltage" fault if it is present or stored.

NOTES

Special notes: The supply to the air flow sensor is common to the EGR copy potentiometer (common track) and to the pedal sensor, track 1 (computer internal connection) and therefore an air flow sensor supply fault is often associated to a supply fault on the pedal sensor, track 1. NOTE: disconnecting the sensors during a fault finding procedure (with the ignition on) to check the supplies causes faults to be relayed back to the diagnostic tool (e.g.: disconnecting the air flow sensor relays causes an open circuit on the air temperature sensor). These additional faults should therefore be ignored and erased after the repair.

1.DEF

NOTES

Only apply this fault finding procedure if a fault is present with 1.DEF.

Check the connection and condition of the air flow sensor connector. Repair if necessary. Disconnect the air flow sensor and check, with the ignition on, that there is a 5 volt supply on track 3 of the sensor. If there is no supply, connect the bornier in place of the computer and check (ignition off) the insulation, continuity and absence of interference resistance of the connection: computer track 30 Repair if necessary. track 3 of the air flow sensor

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-14

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF019 CONTINUED 1

If the previously checked connection is correct but the supply is still not present on track 3 of the air flow sensor, ensure that the EGR potentiometer or the accelerator pedal sensor are not causing the voltage to drop, by disconnecting them each in turn. Replace the component which is causing the voltage to drop. If the previous tests did not allow the supply to be reconnected to track 3 of the air flow sensor: Connect the bornier in place of the computer and check (ignition off) the insulation, continuity and absence of interference resistance of the connections: computer track 12 computer track 30 Repair if necessary. If the previous tests did not allow the 5 volt supply to be reconnected to the air flow sensor: Replace the computer. track 4 of the pedal potentiometer track 1 track 2 of the EGR valve

CC.1 CO.0

NOTES

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after the engine has been started.

Check the connection and condition of the air flow sensor connector. Repair if necessary.

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-15

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

NOTES

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after starting the engine, although the fault can revert to stored after the engine is switched off. The fault finding procedure must therefore be applied even if the fault is only stored.

Check the connection and condition of the flywheel signal sensor connector and replace the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 102 computer track 110 Repair if necessary. Check the resistance value of the engine speed sensor by measuring between: track A and track B of the sensor, replace the sensor if the resistance is not approximately: 600 - 800 at 20C. Remove the sensor and ensure it has not been rubbing on the flywheel target (flywheel warped or cracked) Replace the sensor if necessary. Check the condition of the engine flywheel especially if it is removed (condition of teeth). Change the flywheel if necessary. If the fault persists, change the flywheel signal sensor. track A of the engine speed sensor track B of the engine speed sensor

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-19

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF027 PRESENT OR STORED

EGR SOLENOID VALVE CIRCUIT

CO.0 : CC.1 : 1.DEF : 2.DEF : OPEN CIRCUIT OR SHORT CIRCUIT TO EARTH SHORT CIRCUIT TO +12 V DEVIATION ON POSITIVE LOOP DEVIATION ON NEGATIVE LOOP

NOTES

Priority for dealing with a combination of faults: Deal first with the "DF125 main relay control circuit" fault if it is present or stored.

CO.0 CC.1

NOTES

Only apply this fault finding procedure if a fault is present with CO.0 or CC.1.

Check the connection and condition of the connector of the EGR valve and replace the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 61 Repair if necessary. With the ignition on, ensure that there is a supply on track 1 of the valve connector. If there is no supply, connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: EGR valve track 1 Repair if necessary. Check the resistance value of the EGR valve by measuring between: track 1 and track 2 of the valve and replace the valve if its resistance is not approximately: 8 0.5 at 20C. If the fault persists, replace the EGR valve. track 5 of the main relay track 5 of the EGR valve

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-20

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF027 CONTINUED 1

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after the engine has been started.

1.DEF 2.DEF

NOTES

Priority for dealing with a combination of faults: Deal first with the "DF019 air flow sensor circuit" fault if it is present or stored.

Special notes: The air flow sensor is also used to check that the EGR valve is operating correctly. NOTE: a fault on the air flow sensor prevents the EGR valve from being controlled. With the engine running, view parameter "PR125 EGR valve control" and check at various engine speeds that this parameter varies (on average from 25 - 95%). Check that the air circuit and EGR valve are sealed. Repair if necessary. Remove the EGR valve and ensure that it is in the closed position (not stuck in an intermediate position). Repair if necessary by cleaning the valve. If the valve remains stuck in an intermediate position even after cleaning, replace the EGR valve. If the valve has returned to the closed position, reconnect the connector and using the diagnostic tool, erase the fault then start the command "AC007 EGR valve" to ensure that it opens and closes correctly (no point of resistance). Replace the valve if necessary.

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-21

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF027 CONTINUED 2

If the control was performed correctly, refit the valve and check for problems on the air flow sensor (see special notes). Check the connection and condition of the air flow sensor connector. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 30 computer track 68 computer track 49 Repair if necessary. If the fault persists, replace the air flow sensor. track 3 of the air flow sensor track 5 of the air flow sensor track 2 of the air flow sensor

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-22

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF029 PRESENT OR STORED

POWER ASSISTED STEERING RELAY CONTROL CIRCUIT

CO.0 : OPEN CIRCUIT OR SHORT CIRCUIT TO EARTH CC.1 : SHORT CIRCUIT TO +12V

NOTES

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after starting the engine or starting the command: AC036 power-assisted steering relay.

Check the condition of the clips of the power-assisted steering relay on the engine fuse and relay board (see diagrams of the vehicle's relay plate). Replace the clips if necessary. With the ignition on ensure the presence of +12 volts on track 3 and on track 1 of the power-assisted steering relay (see vehicle diagrams). Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 81 Repair if necessary. Check the resistance value of the relay by measuring between: track 1 and track 2 of the power-assisted steering relay and replace the relay if the resistance is not approximately: 80 5 at 25C. If the fault persists, replace the power-assisted steering relay. track 2 of the power-assisted steering relay.

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-23

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF045 PRESENT OR STORED

PREHEATING RELAY CONTROL CIRCUIT

CC.1 : SHORT CIRCUIT TO +12 V CO.0 : OPEN CIRCUIT OR SHORT CIRCUIT TO EARTH 1.DEF : INCONSISTENT SIGNAL

NOTES

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after preheating is started or after starting the command: AC010 preheating relay.

CO.0 CC.1

NOTES

Only apply this fault finding procedure if a fault is present with CO.0 or CC.1.

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-24

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF045 CONTINUED 1

1.DEF

NOTES

Only apply this fault finding procedure if a fault is present with 1.DEF.

Check the condition of the clips of the preheating relay. Replace the clips if necessary. Check the presence of +12 volts before ignition on track 3 of the preheating relay. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 42 computer track 33 Repair if necessary. Disconnect the preheating relay and check the insulation, continuity and absence of interference resistance of the connections: preheating relay track 6 preheating relay track 7 preheating relay track 1 preheating relay track 2 Repair if necessary. Check the resistance value of the relay by measuring between: track 8 and track 3 of the preheating relay and replace the relay if the resistance is not approximately: 1300 100 at 25C. pre-heater plug No. 1 pre-heater plug No. 2 pre-heater plug No. 3 pre-heater plug No. 4 track 8 of the preheating relay track 9 of the preheating relay

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-25

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

NOTES

Priority for dealing with a combination of faults: Deal first with the "DF019 air flow sensor circuit, DF071 pedal sensor circuit, track 1, DF073 pedal sensor circuit, track 2, DF113 refrigerant pressure sensor circuit and DF027 EGR solenoid valve circuit" faults if they are present or stored.

Special notes: No other faults should be present.

Replace the diesel injection computer.

AFTER REPAIR

Erase all stored faults. Reconfigure the computer according to the options fitted to the vehicle. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-29

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

ENGINE IMMOBILISER LINE

DF068 PRESENT 1.DEF : NO SIGNAL 2.DEF : INCONSISTENT SIGNAL

NOTES

None.

Perform a fault finding procedure on the multiplex network in order to ascertain if there are any faulty multiplex connections. Repair if necessary (refer to the fault finding technical note for the multiplex network). Using the diagnostic tool, check the UCH and ensure that its immobiliser code has been programmed correctly. Reconfigure the UCH if necessary. Carry out a starting test: if the vehicle does not start, switch off the ignition and wait 15 seconds (self-supply period of the computer) then try to start the engine again. If the problem persists, repeat the operation three times. If the vehicle still will not start, replace the injection computer to see whether the problem is caused by the inability to unlock the computer.

AFTER REPAIR

Erase all stored faults. Deal with any other possible faults.

INJ.EDC15VM+1.1

13-30

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF071 PRESENT OR STORED

PEDAL SENSOR CIRCUIT TRACK 1

CC.1 : CO.0 : 1.DEF : 2.DEF : SHORT CIRCUIT TO +12 V OPEN CIRCUIT OR SHORT CIRCUIT TO EARTH INCONSISTENT SIGNAL SENSOR SUPPLY PROBLEM

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after pressing the accelerator pedal.

Priority for dealing with a combination of faults: Deal first with the "DF058 sensor reference voltage" fault if it is present or stored.

NOTES

Special notes: The supply to the pedal sensor track 1 is common to the air flow sensor (computer internal connection) and to the EGR copy potentiometer (track common to the air flow sensor) and therefore a pedal sensor track 1 supply fault is often associated to a supply fault on the air flow sensor. NOTE: disconnecting the sensors during a fault finding procedure (with the ignition on) to check the supplies causes faults to be relayed back to the diagnostic tool (e.g.: disconnecting the air flow sensor relays back an open circuit on the air temperature sensor). These additional faults should therefore be ignored and erased after the repair.

2.DEF

NOTES

Only apply this fault finding procedure if a fault is present with 2.DEF.

Check the connection and condition of the pedal sensor connector (on the accelerator pedal). Change the connector if necessary.

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-31

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF071 CONTINUED 1

Disconnect the accelerator pedal sensor and check that there is a 5 volt supply on track 4 of the sensor. If there is no supply, connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 12 Repair if necessary. If the supply is still not present or if the line (track 12) is connected to earth or to +12 volts. Disconnect the EGR connector and the air flowmeter connector then connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 30 Repair if necessary. If the supply is not present on track 4 of the pedal sensor track 1 (pedal sensor, air flow sensor and EGR disconnected) and if the previously checked connections are correct, connect the three components in turn to find out which one causes the voltage to drop: replace the faulty component. If the previous tests did not allow the 5 volt supply to be reconnected to the pedal sensor track 1: Replace the computer. track 3 of the air flow sensor track 2 of the EGR potentiometer track 4 of the pedal sensor track 1

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-32

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF071 CONTINUED 2

CC.1 CO.0 1.DEF

NOTES

Only apply this fault finding procedure if a fault is present with CC.1, CO.0 or 1.DEF.

Check the connection and condition of the pedal potentiometer connector. Change the connector if necessary. Ensure the accelerator pedal moves the potentiometer correctly from its minimum end stop to its maximum end stop. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 50 computer track 69 computer track 12 Repair if necessary. Check the resistance value of pedal potentiometer No. 1 by measuring between: track 2 and track 4 of the potentiometer and replace the potentiometer if its resistance is not approximately: 1.2 K 480 at 20C. If the fault persists, change the pedal potentiometer. track 2 of the pedal potentiometer track 1 track 3 of the pedal potentiometer track 1 track 4 of the pedal potentiometer track 1

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-33

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF073 PRESENT OR STORED

PEDAL SENSOR CIRCUIT TRACK 2

CC.1 : SHORT CIRCUIT TO +12 V CO.0 : OPEN CIRCUIT OR SHORT CIRCUIT TO EARTH 1.DEF : SENSOR SUPPLY PROBLEM

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after pressing the accelerator pedal.

Priority for dealing with a combination of faults: Deal first with the "DF058 sensor reference voltage" fault if it is present or stored.

NOTES

Special notes: The supply to the pedal sensor track 2 is common to the refrigerant pressure sensor (computer internal connection) and therefore a pedal sensor track 2 supply fault is often associated to a supply fault on the refrigerant pressure sensor. NOTE: disconnecting the sensors during a fault finding procedure (with the ignition on) to check the supplies causes faults to be relayed back to the diagnostic tool (e.g.: disconnecting the pedal sensor relays causes an open circuit of the pedal sensor circuit track 1). These additional faults should therefore be ignored and erased after the repair.

1.DEF

NOTES

Only apply this fault finding procedure if a fault is present with 1.DEF.

Check the connection and condition of the pedal sensor connector (on the accelerator pedal). Change the connector if necessary.

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-34

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF073 CONTINUED 1

Disconnect the accelerator pedal sensor and check that there is a 5 volt supply on track 5 of the sensor. If there is no supply, connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 31 Repair if necessary. If the supply is still not present or if the line (track 31) is connected to earth or to +12 volts, disconnect the refrigerant pressure sensor connector then connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 94 Repair if necessary. If the supply is not present on track 5 of the pedal sensor track 2 (pedal sensor and refrigerant pressure sensor disconnected) and if the previously checked connections are correct, connect the two components in turn to find out which one causes the voltage to drop: replace the faulty component. If the previous tests did not allow the 5 volt supply to be reconnected to the pedal sensor track 2: Replace the computer. track B of the refrigerant pressure sensor track 5 pedal sensor track 2

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-35

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF073 CONTINUED 2

CC.1 CO.0

NOTES

Only apply this fault finding procedure if a fault is present with CC.1 or CO.0.

Check the connection and condition of the accelerator pedal sensor connector. Change the connector if necessary. Ensure the accelerator pedal moves the potentiometer correctly from its minimum end stop to its maximum end stop. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 31 computer track 70 computer track 51 Repair if necessary. Check the resistance value of pedal potentiometer No. 2 by measuring between: track 1 and track 5 of the potentiometer and replace the potentiometer if its resistance is not approximately: 1.7 K 680 at 20C. If the fault persists, change the pedal potentiometer. track 5 of the pedal potentiometer track 2 track 6 of the pedal potentiometer track 2 track 1 of the pedal potentiometer track 2

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
INJ.EDC15VM+1.1

13-36

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

AFTER IGNITION KEY SIGNAL

DF085 PRESENT 1.DEF : INCONSISTENT SIGNAL

NOTES

None.

Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 37 computer track 4 computer track 5 Repair if necessary. If the previously checked connections are correct but if there is no supply on track 37 of the computer, check the condition of fuse F5 on the engine fuse board. Replace if necessary. If the supply is still not present on track 37 of the computer, check that the 12 volt after ignition feed is reaching fuse F5. Repair if necessary (see diagrams). + After ignition feed (see engine fuse board diagrams) earth earth

AFTER REPAIR

Erase all stored faults. Deal with any other possible faults.

INJ.EDC15VM+1.1

13-37

EDC 15 VM+ Vdiag No.: 04

Check the connection and condition of the refrigerant pressure sensor connector. Change the connector if necessary. Disconnect the refrigerant pressure sensor and check that there is a 5 volt supply on track Bof the sensor. If there is no supply, connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 94 Repair if necessary. track B of the refrigerant pressure sensor

AFTER REPAIR

Erase all stored faults. Deal with any other possible faults.

INJ.EDC15VM+1.1

13-41

EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF113 CONTINUED 1

If the supply is still not present or if the line (track 94) is connected to earth or to +12 volts, disconnect the accelerator pedal sensor then connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 31 Repair if necessary. If the supply is not present on track Bof the refrigerant pressure sensor (pedal sensor and refrigerant pressure sensor disconnected) and if the previously checked connections are correct, connect the two components in turn to find out which one causes the voltage to drop: replace the faulty component. If the previous tests did not allow the 5 volt supply to be reconnected to the refrigerant pressure sensor: Replace the computer. track 5 pedal sensor track 2

CC.0

NOTES

Only apply this fault finding procedure if a fault is present with CC.0.

Check the connection and condition of the refrigerant pressure sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 89 computer track 94 computer track 97 Repair if necessary. If the fault persists, change the refrigerant pressure sensor. track A of the refrigerant pressure sensor track B of the refrigerant pressure sensor track C of the refrigerant pressure sensor

AFTER REPAIR

Erase all stored faults. Deal with any other possible faults.

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EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF113 CONTINUED 2

1.DEF

NOTES

Only apply this fault finding procedure if a fault is present with 1.DEF.

Check the connection and condition of the refrigerant pressure sensor connector. Change the connector if necessary. View parameter PR192 refrigerant pressure and ensure that the pressure is greater than 2 bar (compressor operation prohibition safety function). If the pressure is less than 2 bar, connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 89 computer track 94 computer track 97 Repair if necessary. If the connections are correct, ensure that the air conditioning system is correctly filled (see air conditioning fault finding) and that the system does not have any refrigerant leaks. Repair the leaks or refill with refrigerant if necessary. If the fault persists, change the refrigerant pressure sensor. track A of the refrigerant pressure sensor track B of the refrigerant pressure sensor track C of the refrigerant pressure sensor

AFTER REPAIR

Erase all stored faults. Deal with any other possible faults.

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EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF125 PRESENT OR STORED

MAIN RELAY CONTROL CIRCUIT

1.DEF : RELAY CUT OFF TOO LATE

NOTES

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after starting the engine then switching it and the ignition off, waiting for the end of the computer self-supply period and then switching the ignition back on again.

Check the condition of the clips of the main relay on the engine fuse and relay plate (see vehicle relay plate diagrams). Replace the clips if necessary. Check the presence of +12 volts before ignition on track 3 and track 1 of the main relay. If there is no feed, check the insulation, continuity and absence of interference resistance of the connections: track 1 main relay main relay track 3 impact sensor track 1 track 3 of the impact sensor + before ignition (see vehicle diagrams)

If the connections are correct but if the supply is still not present on track 1 of the main relay, ensure that the impact sensor is working correctly by checking the continuity between tracks 1 and 3 using an ohmmeter. If there is no continuity (impact sensor triggered), replace the impact sensor. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 18 Repair if necessary. Check the resistance value of the main relay by measuring between: track 1 and track 2 of the relay and replace the relay if its resistance is not approximately: 80 5 at 25C. If the fault persists, change the main relay. track 2 of the main relay

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
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EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF126 PRESENT OR STORED

FUEL FLOW ACTUATOR CIRCUIT

1.DEF : DEVIATION ON POSITIVE LOOP 2.DEF : DEVIATION ON NEGATIVE LOOP

Condition for applying the fault finding procedure to the stored fault. The fault is declared present following an engine speed above 1200 rpm.

NOTES

Priority for dealing with a combination of faults: Deal first with the DF145 "fuel flow controller" and DF125 "main relay control circuit" faults if they are present or stored.

Special note: A deviation on the positive loop will lead to a lack of power whilst a deviation on the negative loop will cause the engine to stop. Replacing the fuel flow actuator requires the pump to be adjusted internally on a diesel injection bench.

Check the connection and condition of the black 7-track connector of the injector pump. Change the connector if necessary. With the ignition switched on, ensure there is a 12 volts supply on track 7 of the black 7-track connector of the injection pump. If there is no supply, check the insulation, continuity and absence of interference resistance of the connection: black 7-track connector of the pump track 7 Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer track 116 computer track 121 Repair if necessary. track 4 of the black 7-track connector of the pump (actuator control) track 5 of the main relay

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
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EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF126 CONTINUED

If the fault persists, connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer computer computer computer computer track 100 track 108 track 99 track 107 track 106 track 1 of the black 7-track connector of the injection pump (flow slide valve reference) track 2 of the black 7-track connector of the injection pump (flow slide valve position measurement) track 3 of the black 7-track connector of the injection pump (flow slide valve mid point)

Repair if necessary. Check the resistance value of the flow actuator by measuring between: track 4 and track 7 of the black 7-track connector of the injection pump and replace the fuel flow actuator (see notes above) if its resistance is not approximately: 0.4 - 1 (take the resistance of the multimeter wires into account).

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
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EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

DF139 PRESENT OR STORED

INJECTION ADVANCE SENSOR

1.DEF: DEVIATION ON POSITIVE LOOP 2.DEF: DEVIATION ON NEGATIVE LOOP

Priority for dealing with a combination of faults: Deal first with the "DF005 needle lift sensor circuit and DF125 main relay control circuit" faults if they are present or stored.

NOTES

Condition for applying the fault finding procedure to the stored fault. The fault is declared present after starting the engine then accelerating at no load to between 1500 and 4500 rpm.

Special notes: The computer uses the needle lift sensor to provide a copy signal of the injection advance actuator. The combination of these two components forms the injection advance sensor circuit.

Check the connection and condition of the black 3-track connector of the injection pump. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer track 114 Repair if necessary. track 1 of the black 3-track connector of the injection pump (advance actuator control)

AFTER REPAIR

Erase all stored faults. Follow the instructions to confirm repair. Deal with any other possible faults.
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EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Fault interpretation

Function

Parameter or status Check or action ET001: computer + after ignition feed computer supply voltage

Display and notes ACTIVE

Fault finding In the event of a problem: Apply the fault finding procedure for the charging circuit. If active apply the fault finding procedure for the immobiliser system.

Computer supply PR004: 11.8 < X < 13.2 V

Immobiliser

ET003:

engine immobiliser

INACTIVE

PR092: PR093: PR242:

pedal load (track 1) pedal load (track 2) calculated accelerator pedal position pedal potentiometer voltage, track 1 accelerator and brake pedal safety

no load: X =0% full load: X =100% no load: X =0% full load: X =100% no load: X =0% full load: X =100% In the event of a problem: Apply the fault finding procedure for faults on the pedal sensor circuit, track 1 and track 2 (DF071 and DF073).

Accelerator pedal

PR008:

X = 5 Volts ( 0.2 Volts)

ET159:

INACTIVE, (ACTIVE if a pedal is pressed and then the other)

For more information: refer to the fault finding procedure for status ET159.

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Only check the conformity after a complete check with the diagnostic tool. The values indicated in this conformity check are given as examples. Test conditions: engine stopped, ignition on.

Order

Function

Parameter or status Check or action ET160: electrical solenoid

Display and notes ACTIVE for 30 seconds after the ignition is switched on, then INACTIVE.

Fault finding In the event of a problem: Apply the fault finding procedure for the electrical solenoid circuit fault (DF014) In the event of a problem: Apply the fault finding procedure for the advance actuator control fault (DF140). In the event of a problem: Refer to the fault finding procedure for status ET008.

Fuel PR248: advance actuator X = 95%

ET008:

Overheating warning light

Fault warning lights ET125: preheating / fault warning light

ACTIVE for 3 seconds when the ignition is switched on then INACTIVE(the warning light remains active for a level 2 injection fault). ACTIVE during the preheating phase then INACTIVE (the warning light remains active for a level 1 injection fault).

In the event of a problem: refer to the fault finding procedure for status ET125.

PR125: 6 Gas recirculation

EGR valve control

X = 5%

In the event of a problem: Apply the fault finding procedure for the EGR solenoid valve circuit fault (DF027).

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Only check the conformity after a complete check with the diagnostic tool. The values indicated in this conformity check are given as examples. Test conditions: engine stopped, ignition on.

Order

Function

Parameter or status Check or action ET013: Brake switch no. 1 signal

Display and notes ACTIVE when the pedal is pressed INACTIVE if not.

Fault finding In the event of a problem: Apply the fault finding procedure for the brake pedal switch circuit fault (DF051).

Switches ET014: Brake switch no. 2 signal ACTIVE when the pedal is pressed INACTIVE if not.

ET037:

low-speed fan assembly relay control

INACTIVE

In the event of a problem: Apply the fault finding procedure for the lowspeed fan assembly circuit fault (DF048). In the event of a problem: Apply the fault finding procedure for status ET038. In the event of a problem: Apply the fault finding procedure for the power-assisted steering relay control circuit fault (DF029).

ET038: 8 Relays

high-speed fan assembly relay control

INACTIVE

ET025:

power-assisted steering relay control

INACTIVE

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Only check the conformity after a complete check with the diagnostic tool. The values indicated in this conformity check are given as examples. Test conditions: engine stopped, ignition on.

Order

Function

Parameter or status Check or action ET106: thermoplunger no. 1 relay control

Display and notes INACTIVE

Fault finding In the event of a problem: Apply the fault finding procedure for the thermoplunger no. 1 relay fault (DF94). In the event of a problem: Apply the fault finding procedure for the thermoplunger no. 2 relay fault (DF104). In the event of a problem: Apply the fault finding procedure for the preheating relay control circuit fault (DF104).

ET107: 8 Relays (continued)

thermoplunger no. 2 relay control

INACTIVE

ET027:

pre-postheating relay control

ACTIVE during the preheating phase, then INACTIVE

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Only check the conformity after a complete check with the diagnostic tool. The values indicated in this conformity check are given as examples. Test application conditions: engine warm at idling speed, without electrical consumers.

Order

Function

Parameter or status Check or action ET001: computer + after ignition feed computer supply voltage engine immobiliser

Display and notes ACTIVE

Fault finding In the event of a problem: Apply the fault finding procedure for the charging circuit. If active apply the fault finding procedure for the immobiliser system. In the event of a problem: Apply the fault finding procedure for the coolant temperature sensor circuit fault (DF002). In the event of a problem: Apply the fault finding procedure for the air temperature sensor circuit fault (DF022). In the event of a problem: Apply the fault finding procedure for the air flow sensor circuit fault (DF019). If the pressure does not vary (remains stuck on its substitute value): replace the computer.

Computer supply PR004: 12 < X < 14.5 V

ET003: 2 Immobiliser

INACTIVE

PR002: 3 Coolant temperature sensor

coolant temperature

X = engine temperature 5C (substitute value: 105C)

PR003: 4 Air temperature sensor

air temperature

X = temperature under bonnet 5C (substitute value: 19.66C)

PR050: PR025:

air flow measurement air flowmeter supply voltage

200 < X < 520 mg/st. X = 5 volts ( 0.2 V)

Air flow PR016: atmospheric pressure X = atmospheric pressure (substitute value: 1024 hPa)

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action PR092: PR093: PR242: pedal load (track 1) pedal load (track 2) calculated accelerator pedal position pedal potentiometer voltage, track 1 accelerator and brake pedal safety

Display and notes no load: X =0% full load: X =100% no load: X =0% full load: X =100% no load: X =0% full load: X =100%

Fault finding In the event of a problem: Apply the fault finding procedure for faults on the pedal sensor circuit, track 1 and track 2 (DF071 and DF073).

Accelerator pedal

PR008

X = 5 volts ( 0.2 V)

ET159:

INACTIVE,(ACTIVE if a pedal is pressed and then the other)

In the event of a problem: refer to the fault finding procedure for status ET159. In the event of a problem: Apply the fault finding procedure for the refrigerant pressure sensor circuit fault (DF113). In the event of a problem: refer to the fault finding procedure for status ET006. In the event of a problem: Apply the fault finding procedure for the air conditioning cold loop relay control circuit (DF111).

PR192: 7 Air conditioning

refrigerant fluid pressure refrigerant sensor voltage

2 < X < 15 bar

PR203:

X = 5 volts ( 0.2 V)

ET006:

air conditioning request

INACTIVE

ET116:

air conditioning compressor relay control

INACTIVE

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action PR001: Fuel temperature

Display and notes X = diesel temperature 5C (substitute value: 44.96 C)

Fault finding In the event of a problem: Apply the fault finding procedure for the fuel temperature sensor circuit fault (DF021). None.

PR033:

fuel flow

0.6 < X < 1.1 l/h

Fuel

ET160:

electrical solenoid

ACTIVE

In the event of a problem: Apply the fault finding procedure for the electrical solenoid circuit fault (DF014) In the event of a problem: Apply the fault finding procedure for the advance actuator control fault (DF140). In the event of a problem: refer to the fault finding procedure for status ET008. In the event of a problem: refer to the fault finding procedure for status ET125.

PR248:

advance actuator

5% < X < 95%

ET008:

Overheating warning light

INACTIVE (active for a level 2 injection fault)

Fault warning lights

ET125:

preheating / fault warning light

INACTIVE (active for a level 1 injection fault)

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action PR006: engine speed

Display and notes X = 850 rpm

Fault finding In the event of a problem: Apply the fault finding procedure for the flywheel signal sensor circuit fault (DF023). None.

Vehicle and engine speeds

PR062:

idle speed reference vehicle speed

X = 850 rpm

PR018:

X = 0 mph

In the event of a problem: Apply the fault finding procedure for the vehicle speed sensor circuit fault (DF004). In the event of a problem: Apply the fault finding procedure for the thermoplunger no. 1 relay fault (DF094). In the event of a problem: Apply the fault finding procedure for the thermoplunger no. 2 relay fault (DF104). In the event of a problem: Apply the fault finding procedure for the preheating relay control circuit fault (DF104).

ET106:

thermoplunger no. 1 relay control

ET107: 11 Relays

thermoplunger no. 2 relay control

INACTIVE (active if coolant temperature = 5 < X < 85C and air temperature = 2 < X < 7C, control prohibited if the coolant temperature is 0C due to metal part holding faults).

ET027:

Pre-postheating relay control

INACTIVE

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action ET037: low-speed fan assembly relay control

Display and notes ACTIVE for a coolant temperature above 99C or when the air conditioning is switched on. INACTIVE for a coolant temperature below 96C.

Fault finding In the event of a problem: Apply the fault finding procedure for the lowspeed fan assembly circuit fault (DF048).

ET038: 11 Relays (continued)

high-speed fan assembly relay control

ACTIVE for a coolant temperature above 102C or for a freon pressure above 23 bar). INACTIVE for a coolant temperature below 99 C. ACTIVE

In the event of a problem: Apply the fault finding procedure for status ET038.

ET025:

power-assisted steering relay control

In the event of a problem: Apply the fault finding procedure for the power-assisted steering relay control circuit fault (DF029). In the event of a problem: Apply the fault finding procedure for the EGR solenoid valve circuit fault (DF027).

PR125: 12 Gas recirculation

EGR valve control

5 % < X < 95%

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Only check the conformity after a complete check with the diagnostic tool. The values indicated in this conformity check are given as examples. Test conditions: engine warm at idling speed with air conditioning operating.

Order

Function

Parameter or status Check or action PR192: refrigerant fluid pressure

Display and notes 3 bar < X < 25 bar (without any hesitation caused by the compressor starting). X = 5 volts ( 0.2 V)

Fault finding In the event of a problem: Apply the fault finding procedure for the refrigerant pressure sensor circuit fault (DF113).

PR203:

refrigerant sensor voltage

Air conditioning

ET006:

air conditioning request

ACTIVE

In the event of a problem: refer to the fault finding procedure for status ET006. In the event of a problem: Apply the fault finding procedure for the air conditioning cold loop relay control circuit (DF111). In the event of a problem: Apply the fault finding procedure for the flywheel signal sensor circuit fault (DF023). None.

ET116:

air conditioning compressor relay control

ACTIVE

PR006:

engine speed

Engine speed

X = 875 rpm (900 rpm if thermoplungers active 1000 rpm if heated windscreen or heated rear screen active).

PR062:

idle speed reference

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DIESEL INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action ET037: low-speed fan assembly relay control

Display and notes ACTIVE

Fault finding In the event of a problem: Apply the fault finding procedure for the lowspeed fan assembly circuit fault (DF048).

Low-speed fan assembly relay

ET038: 4 High-speed fan assembly relay

high-speed fan assembly relay control

INACTIVE or ACTIVE if the freon pressure is above 23 bar.

In the event of a problem: Apply the fault finding procedure for status ET038.

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EDC 15 VM+ Vdiag No.: 04

DIESEL INJECTION Fault finding - Customer complaints

NOTES

Only refer to this customer complaint after a complete check using the diagnostic tool

NO COMMUNICATION WITH THE COMPUTER

CHART 1

STARTING PROBLEMS

CHART 2

IDLE SPEED PROBLEMS

CHART 3

PROBLEMS WHEN DRIVING

CHART 4

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DIESEL INJECTION Fault finding - Fault finding chart

CHART 1

NO COMMUNICATION WITH THE COMPUTER

NOTES

None.

Try the diagnostic tool on another vehicle. Check: the connection between the diagnostic tool and the diagnostic socket (wiring in good condition), the injection, engine and passenger compartment fuses. Check for the presence of + 12 volts before ignition on track 16, + 12 volts after ignition on track 1 and an earth on tracks 4 and 5 of the diagnostic socket. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer computer computer computer computer computer computer computer track 1 track 2 track 37 track 18 track 4 track 5 track 14 track 16 track 5 of the main relay (computer self-supply) track 5 of the main relay (computer self-supply) + after ignition (passenger compartment fuse box) track 2 of the main relay (relay control) earth earth track 15 of the diagnostic socket (line L) track 7 of the diagnostic socket (line K)

Repair if necessary.

AFTER REPAIR

Check with the diagnostic tool.

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DIESEL INJECTION Fault finding - Fault finding chart

CHART 2

STARTING PROBLEMS
(starting is difficult or impossible)

NOTES

Only refer to this customer complaint after a check using the diagnostic tool

Ensure the conformity of parameter: "PR002 coolant temperature", as an incorrect reading from the sensor alters or cancels the control of the preheating relay and has an effect on fuel flow management.

If no faults are displayed by the diagnostic tool, ensure that the problem is not linked to an engine immobiliser system fault by viewing status: ET003 immobiliser (see checking conformity). If necessary perform a fault finding procedure on the UCH.

Ensure that the starter motor rotates correctly (approximately 250 rpm). If this is not the case: Check the condition of the battery, oxidization and tightness of the terminals. Ensure the engine earth strap is in good condition. Ensure that the battery lead to the starter motor is in good condition. Check the battery charge level. Check that the starter motor is operating correctly.

Preheating check: Ensure that the preheating is operating correctly by starting command: AC010 preheating relay using the diagnostic tool. During this command, check for the presence of a 12 volt supply on the preheater plugs (measure using a voltmeter or amps clamps on each plug lead). If there is no electrical supply on one or several plugs, apply the fault finding procedure for fault: DF045 preheating relay control circuit. If the plugs are correctly supplied, with the preheating relay connector disconnected, check the resistance of the plugs (0.6 0.3 ). Replace the faulty plug or plugs.

AFTER REPAIR

Check with the diagnostic tool.

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DIESEL INJECTION Fault finding - Fault finding chart

CHART 2 CONTINUED 1

Fuel supply check: Check that there is fuel present (the fuel gauge may be faulty). Check that the fuel is of the proper type. Check that no hoses are pinched (especially after a removal operation). Check the condition of the diesel filter and replace if necessary. Ensure that the fuel tank breather is not blocked. Ensure that there are no air leaks on the diesel supply system. Ensure that the impact sensor is operating correctly.

Air supply check: Check the condition of the inlet ducts (no air leaks, pinching of the air inlet pipe etc.). Ensure that the air filter is in good condition and replace if necessary. Check that the brake servo is not leaking (air leak).

Engine speed sensor check: (if the engine starts and then stalls straightaway) Remove the engine speed sensor and ensure it has not been rubbing on its target (increase in the air gap). If it has, check the condition of the engine flywheel (warped or cracked).

Exhaust system check: Ensure that the exhaust system is in good condition. Remove the pre-catalytic converter and look at the condition of the filter element inside (clogging). Shake the pre-catalytic converter to see whether the filter element is broken (metallic noises) and replace if necessary.

AFTER REPAIR

Check with the diagnostic tool.

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DIESEL INJECTION Fault finding - Fault finding chart

CHART 2 CONTINUED 2

Engine condition check: Using the dipstick, check that the oil level is not too high. Ensure that the engine rotates freely. Check the cylinder compression. Check the timing. Check the injection pump setting (see repair methods).

EGR valve check: It may not be possible to start the engine if the EGR valve is stuck in the fully open position. Therefore in this case, the EGR valve must be removed to ensure that it has returned correctly to the closed position. If the valve is stuck in the open position, try to release it with a cleaning product. Replace the EGR valve if it cannot be released.

AFTER REPAIR

Check with the diagnostic tool.

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DIESEL INJECTION Fault finding - Fault finding chart

CHART 3

IDLE SPEED PROBLEMS

NOTES

Only refer to this customer complaint after a check using the diagnostic tool

Ensure the conformity of parameter: "PR002 coolant temperature", (see conformity check) as an incorrect reading from the sensor has an effect on the flow and advance management of the injection pump.

Fuel supply check:: Check that there is fuel present (the fuel gauge may be faulty). Check that the petrol is of the proper type. Check that no hoses are pinched (especially after a removal operation). Check the condition of the diesel filter and replace if necessary. Ensure that the fuel tank breather is not blocked. Ensure that there are no air leaks on the diesel supply system. Ensure that the impact sensor is operating correctly.

Air supply check: Check the condition of the intake ducts (no air leaks, pinching of the air intake pipe etc.). Ensure that the air filter is in good condition; change it if necessary. Check that the brake servo is not leaking (air entering).

Engine speed sensor check: Remove the engine speed sensor and ensure it has not been rubbing on its target (increase in the air gap). If it has, check the condition of the engine flywheel (warped or cracked).

Engine condition check: Using the dipstick, check that the oil level is not too high. Check the cylinder compressions. Check the timing.

AFTER REPAIR

Check with the diagnostic tool.

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DIESEL INJECTION Fault finding - Fault finding chart

CHART 4

PROBLEMS WHEN DRIVING

NOTES

Only refer to this customer complaint after a check using the diagnostic tool

Fuel supply check: Check that there is enough fuel present (the fuel gauge may be faulty). Check that no hoses are pinched (especially after a removal operation). Check the condition of the diesel filter and replace if necessary. Ensure that the fuel tank breather is not blocked. Ensure that there are no air leaks on the diesel supply system. Ensure that the impact sensor is operating correctly.

Air supply check: Check the condition of the intake ducts (no air leaks, pinching of the air intake pipe etc.). Ensure that the air filter is in good condition and not deformed; change it if necessary. Check that the brake servo is not leaking (air entering).

Engine condition check: Using the dipstick, check that the oil level is not too high. Ensure that the engine cooling system is operating correctly (so that the engine is operating under optimum conditions, neither too cold nor too hot).

AFTER REPAIR

Check with the diagnostic tool.

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DIESEL INJECTION Fault finding - Fault finding chart

CHART 4 CONTINUED

EGR valve check: Engine hesitation or lack of performance may be caused if the EGR valve is stuck in the fully open position or if the valve moves slowly due to sticking. Therefore in this case, the EGR valve must be removed to ensure that it has returned correctly to the closed position. If the valve is stuck in the open position, try to release it with a cleaning product. Replace the EGR valve if it cannot be released.

Running gear check: Check that the wheels turn freely (calipers, drums or bearings not binding). Check the tyre pressures and tread condition (bulges).

AFTER REPAIR

Check with the diagnostic tool.

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117
SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Introduction

GENERAL APPROACH TO FAULT FINDING

To carry out a fault finding test on the "SAGEM 2000 Vdiag 08" injection system, the following elements are required: The wiring diagram for the function on the vehicle concerned, Diagnostic tools (except XR 25). Multimeter. Test bornier: El. 1590.

1 Use one of the diagnostic tools to identify the system fitted on the vehicle (reading the computer family "SAGEM 2000 Vdiag 08"). Note: if dialogue cannot be established with the computer, go directly to the "Customer complaint" section and consult Fault finding chart 1 "No communication with the computer". 2 Locate the Fault finding documents corresponding to the system identified. 3 Read the faults stored in the computer memory and use the "Fault interpretation" section of the documents. Reminder: A fault should be interpreted when using the diagnostic tool after switching the ignition off then back on again. Faults can be interpreted in two ways: either as present faults or stored faults. If the fault is declared as "present": perform the fault finding procedure directly. If the fault is declared as "stored": following the application instructions for the stored fault. If the fault does not switch to present, perform the fault finding procedure but do not replace the component. In both cases, finish the fault finding procedure by carrying out the instructions in the "After Repair" section.

JSAA3082. 0

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SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Introduction

4 Perform the conformity check (appearance of possible faults not yet declared by the system's autodiagnostic procedure) and apply the relevant fault finding procedures according to results. 5 Confirm the repair (disappears of the "Customer complaint" and "Fault finding chart" sections). 6 Use the "Customer complaint" and "Fault finding chart" sections if the problem persists.

WARNING
Never drive the vehicle without having checked that the computer does not contain any faults relating to the "Throttle body".

BORNIER CHARACTERISTICS
Bornier El. 1590 consists of a 112 track fixed connector connected to a printed circuit on which are arranged 112 copper plated areas number from 1 to 112. Using the wiring diagrams, it is easy to identify connections or other parts needing to be checked.

IMPORTANT
* All checks using bornier El. 1590 should only be performed with the battery disconnected. * The bornier is designed to be used with an ohmmeter only. Under no circumstances should 12 volts be applied to the test points.

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17-2

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF002 PRESENT OR STORED

THROTTLE POSITION POTENTIOMETER CIRCUIT

DEF : Unidentified electrical fault

Warning: Never drive the vehicle without having checked that the computer does not contain any faults relating to the "Throttle body". NOTES Deal first with faults DF125 and DF126 if they are present. Conditions for applying the fault finding procedure to the stored fault: The fault is declared present after a variation in engine speed.

Check the cleanliness, connection and condition of the throttle position potentiometer connections. If necessary change the connections. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track G4 connector B Throttle position potentiometer Computer track G3 connector B Throttle position potentiometer Computer track G2 connector B Throttle position potentiometer Computer track D3 connector B Throttle position potentiometer (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check the cleanliness of the throttle body and that the throttle rotates correctly. Check that tracks 1 and 2 of the throttle position potentiometer correctly follow their resistive curves. (See the values in the "HELP" section). Repair or change the throttle body if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

If the throttle body has been replaced, all programmed values must be reinitialised ("RZ008"). Follow the instructions to confirm repair: Continue to deal with the fault if it is present. Ignore the fault if it is stored. Deal with any other possible faults. Erase all stored faults.
JSAA3082. 0

17-3

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF003 PRESENT OR STORED

AIR TEMPERATURE SENSOR CIRCUIT

DEF : Unidentified electrical fault OBD : OBD fault (On Board Diagnostic)

NOTES

Conditions for applying the fault finding procedure to the stored fault: The fault is declared present after the fan has been activated with the engine running.

DEF

Check the cleanliness, connection and condition of the sensor and the connector. If necessary change the connections. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track E3 connector B Air temperature sensor Computer track E2 connector B Air temperature sensor (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check the resistance of the air temperature sensor. (See the values in the "HELP" section). Replace the sensor if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

If the fault previously had the symbol "DEF", the fault may change symbol and switch to "OBD". This is normal. Follow the instructions to confirm repair: If the fault is present with symbol "DEF", continue to deal with the fault. If the fault is stored with symbol "DEF", ignore it. If the fault is present or stored with symbol "OBD" (On Board Diagnostic), ignore it. Deal with any other possible faults. Erase all stored faults.

AFTER REPAIR

JSAA3082. 0

17-4

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF003 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

If the symbol has changed to "DEF" after performing the instruction, the electrical fault has been detected. Consequently, it must be dealt with like a present fault with symbol "DEF". If the fault is still displayed with symbol "OBD" after performing the instruction, the electrical fault was present several times but is no longer detected. Consequently, the circuit should be checked without replacing the parts which are not clearly identified as being faulty. To perform this check, use the fault finding procedure for the symbol "DEF".

AFTER REPAIR

JSAA3082. 0

17-5

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF004 PRESENT OR STORED

COOLANT TEMPERATURE SENSOR CIRCUIT

DEF : Unidentified electrical fault OBD : OBD fault (On Board Diagnostic)

NOTES

Conditions for applying the fault finding procedure to the stored fault: The fault is declared present after the fan has been activated with the engine running.

DEF

Check the cleanliness, connection and condition of the sensor and the connector. If necessary change the connections. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track F2 connector B Coolant temperature sensor Computer track F4 connector B Coolant temperature sensor (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check the resistance of the air temperature sensor. (See the values in the "HELP" section). Replace the sensor if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

JSAA3082. 0

17-6

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF004 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

If the symbol has changed to "DEF" after performing the instruction, the electrical fault has been detected. Consequently, it must be dealt with like a present fault with symbol "DEF". If the fault is still displayed with symbol "OBD" (On Board Diagnostic) after performing the instruction, the electrical fault was present several times but is no longer detected. Consequently, the circuit should be checked without replacing the parts which are not clearly identified as being faulty. To perform this check, use the fault finding procedure for the symbol "DEF".

AFTER REPAIR

JSAA3082. 0

17-7

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF005 PRESENT OR STORED

PRESSURE SENSOR CIRCUIT

DEF : Unidentified electrical fault OBD : OBD fault (On Board Diagnostic)

NOTES

Conditions for applying the fault finding procedure to the stored fault: The fault is declared present after: the ignition has been switched off and communications lost, the ignition has been switched on again and communications re-established, a 10 second timed period at idle speed.

DEF

Check that the manifold pressure sensor is correctly mounted. Check that the inlet line is sealed, from the throttle to the cylinder. Check that there are no defective seals. Check that the canister bleed is not disconnected nor blocked open. Check that the manifold air temperature sensor is correctly mounted. Check that the resonator is not cracked. Check the cleanliness, connection and condition of the sensor and its connection. Replace any parts if necessary. Using a vacuum pump, check the consistency of the manifold pressure. Check the consistency with parameter PR001 on the diagnostic tool. Replace the sensor if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track H2, connector B Pressure sensor Computer track H3, connector B Pressure sensor Computer track H4, connector B Pressure sensor (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

JSAA3082. 0

17-8

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF005 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

AFTER REPAIR

JSAA3082. 0

17-9

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF006 PRESENT OR STORED

PINKING SENSOR CIRCUIT

DEF : Unidentified electrical fault OBD : OBD fault (On Board Diagnostic)

NOTES

Conditions for applying the fault finding procedure to the stored fault: The fault is declared present during a road test with engine warm and engine speed high.

Check the conformity of the fuel in the fuel tank. DEF Check the conformity of the spark plugs. Check the pinking sensor is tight. Check the cleanliness, connection and condition of the sensor and the connector. Replace any parts if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track A2 connector B Pinking sensor Computer track B2 connector B Pinking sensor Computer track C2 connector B Pinking sensor screening (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

JSAA3082. 0

17-10

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF006 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

If the symbol has changed to "DEF" after performing the instruction, the electrical fault has been detected. Consequently, it must be dealt with like a present fault with symbol "DEF". If the fault is still displayed with symbol "OBD" (On Board Diagnostic) after performing the instruction, the electrical fault was present several times but is no longer detected. Consequently, the circuit should be checked without replacing the parts which are not clearly identified as being faulty. To perform this check, use the fault finding procedure for the symbol "DEF".

AFTER REPAIR

JSAA3082. 0

17-11

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF008 PRESENT OR STORED

FUEL PUMP RELAY CONTROL CIRCUIT

CO.0 CC.1 DEF OBD : : : : Open circuit or short circuit to earth Short circuit to +12 V Unidentified electrical fault OBD fault (On Board Diagnostic)

NOTES

Conditions for applying the fault finding procedure to the stored fault: The fault is declared present after the ignition has been switched on.

CO.0 CC.1 DEF

Check the supply fuse of the fuel pump relay. Change the fuse if necessary. Check the cleanliness, connection and condition of the fuel pump relay connector. Change the connector if necessary. Disconnect the relay. Check the condition and cleanliness of the contacts. With the ignition on, check for the presence of +12 V on track 1 on the connector side of the fuel pump relay. Repair if necessary. Check the resistance of the fuel pump relay on tracks 1 and 2. (See the value in the "HELP" section). Change the fuel pump relay if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Computer track D1 connector C Fuel pump relay (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

If the fault previously had the symbol "CO.0, CC.1 or DEF", the fault may change symbol and switch to "OBD". This is normal. Follow the instructions to confirm repair: If the fault is present with symbol "CO.0, CC.1 or DEF", continue to deal with the fault. If the fault is stored with symbol "CO.0, CC.1 or DEF", ignore it. If the fault is present or stored with symbol "OBD" (On Board Diagnostic), ignore it. Deal with any other possible faults. Erase all stored faults.

AFTER REPAIR

JSAA3082. 0

17-12

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF008 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

If the symbol has changed to "CO.0, CC.1 or DEF" after performing the instruction, the electrical fault has been detected. Consequently, it must be dealt with like a present fault with symbol "CO.0, CC.1 or DEF". If the fault is still displayed with symbol "OBD" (On Board Diagnostic) after performing the instruction, the electrical fault was present several times but is no longer detected. Consequently, the circuit should be checked without replacing the parts which are not clearly identified as being faulty. To perform this check, use the fault finding procedure for the symbol "CO.0, CC.1 or DEF".

AFTER REPAIR

JSAA3082. 0

17-13

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

JSAA3082. 0

17-16

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF014 PRESENT OR STORED

CANISTER BLEED SOLENOID VALVE CIRCUIT

CO.0 CC.1 DEF OBD : : : : Open circuit or short circuit to earth Short circuit to +12 volts Unidentified electrical fault OBD fault (On Board Diagnostic)

NOTES

Deal first with faults DF009 and DF019 if they are present. Conditions for applying the fault finding procedure to the stored fault: The fault is declared present after the ignition has been switched on.

CO.0 CC.1 DEF

Check the cleanliness, connection and condition of the canister bleed solenoid valve connector. Change the connector if necessary. With the ignition on, check for the presence of +12 Volts on the canister bleed solenoid valve. Repair if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Computer track E1 connector C Canister bleed valve (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check the resistance of the canister bleed solenoid valve. (See the value in the "HELP" section). Change the solenoid valve if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

JSAA3082. 0

17-17

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF014 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

AFTER REPAIR

JSAA3082. 0

17-18

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF017 PRESENT OR STORED

FLYWHEEL SIGNAL INFORMATION

1.DEF : 2.DEF : 1.OBD: 2.OBD: Flywheel target fault No tooth signal (On Board Diagnostic) OBD fault: flywheel target OBD fault: no flywheel signal

NOTES

The pressure sensor should not be faulty when performing this fault finding test. Conditions for applying the fault finding procedure to the stored fault: The fault is declared present after operating the starter motor for 10 seconds or after the engine has been running for 2 minutes.

1.DEF 2.DEF

If the symbol has changed to "CO.0, CC.1 or 1.DEF or 2.DEF" after performing the instruction, the electrical fault has been detected. Consequently, it must be dealt with like a present fault with symbol "CO.0, CC.1, 1.DEF or 2.DEF" If the fault is still displayed with symbol "1.OBD or 2.OBD" (On Board Diagnostic) after performing the instruction, the electrical fault was present several times but is no longer detected. Consequently, the circuit should be checked without replacing the parts which are not clearly identified as being faulty. To perform this check, use the fault finding procedure for the symbol "CO.0, CC.1, 1.DEF or 2.DEF".

AFTER REPAIR

JSAA3082. 0

17-22

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF019 PRESENT OR STORED

SUPPLY
1.DEF : Electrical fault to +12 Volts after actuator relay

NOTES

Deal first with fault DF009 if it is present. Conditions for applying the fault finding procedure to the stored fault: The fault is declared present after: the ignition has been switched off and communications lost, the ignition has been switched on again and communications re-established.

Disconnect the actuator relay. Check the cleanliness, connection and condition of the actuator relay connections. If necessary change the connections. With the ignition on, check for the presence of 12 volts on track 3 of the actuator relay. If there is not 12 volts, check the supply fuse. (See the corresponding section in the workshop repair manual). Check the insulation and continuity of the line. Check the resistance of the actuator relay between tracks 1 and 2. (See the value in the "HELP" section). Change the relay if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Computer track G2 connector C Injection actuator relay (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If this does not work, replace the actuator relay. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Erase all stored faults.
JSAA3082. 0

17-23

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF021 PRESENT OR STORED

ENGINE IMMOBILISER
DEF: Unidentified electrical fault

NOTES

None.

Test the multiplex network. Refer to the "Multiplex network" and "Engine immobiliser" sections in the Workshop Repair Manual. Perform a fault finding procedure on the "Engine immobiliser" system if necessary.

AFTER REPAIR

None.

JSAA3082. 0

17-24

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF022 PRESENT OR STORED

COMPUTER
1.DEF : 2.DEF : 3.DEF : 4.DEF : Computer fault Computer fault: motorised throttle control Storage memory area fault Engine immobiliser memory area fault

NOTES

None.

1.DEF 2.DEF

Computer defective or not to specification. Replace the injection computer.

4.DEF 3.DEF

Do not change the injection computer immediately. Carry out the following procedure: Switch the ignition on and enter into dialogue with the computer. Clear the computer memory. Switch the ignition off and wait for loss of dialogue with the computer. Switch the ignition on and enter into dialogue with the computer. If the computer fault is still present, carry out this procedure again. If the computer fault is still present after the fifth deletion attempt, change the injection computer.

AFTER REPAIR

Erase all stored faults.

JSAA3082. 0

17-25

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

HIGH-SPEED FAN CIRCUIT

DF030 PRESENT CO.0 : Open circuit or short circuit to earth CC.1 : Short circuit to +12 V DEF : Unidentified electrical fault

NOTES

Deal first with fault DF004 if it is present.

Check the cleanliness, connection and condition of the high-speed fan assembly relay connector. Change the connector if necessary. With the ignition on, check for +12 V on track 1 of the relay Repair if necessary. Check the resistance of the high-speed fan assembly relay on tracks 1 and 2. (See the value in the "HELP" section). Change the high-speed fan assembly relay if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Computer track F2 connector C High-speed fan assembly relay (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Deal with any other possible faults. Erase all stored faults.
JSAA3082. 0

17-26

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF032 PRESENT OR STORED

COOLANT TEMPERATURE OVERHEATING WARNING LIGHT CIRCUIT

CO.0 : Open circuit or short circuit to earth CC.1 : Short circuit to +12 volts DEF : Unidentified electrical fault

NOTES

None.

AFTER REPAIR

None.

JSAA3082. 0

17-27

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DOWNSTREAM OXYGEN SENSOR HEATER CIRCUIT

DF038 PRESENT OR STORED CO.0 : CC.1 : 1.DEF : 2.DEF : 1.OBD: 2.OBD: Open circuit or short circuit to earth Short-circuit to +12 volts Unidentified electrical fault Oxygen sensor heating power not correct (On Board Diagnostic) OBD fault: downstream oxygen sensor heating OBD fault: downstream oxygen sensor heating power

NOTES

CO.0 CC.1 1.DEF 2.DEF

Check the cleanliness, connection and condition of the downstream oxygen sensor connector. Change the connector if necessary. With the ignition on, check for the presence of +12 volts on track A of the downstream oxygen sensor connector. Repair if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Computer track G3 connector C Downstream oxygen sensor (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check the heating resistance of the downstream oxygen sensor. (See the value in the "HELP" section). Replace the upstream oxygen sensor if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

JSAA3082. 0

17-28

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF038 CONTINUED

1.OBD 2.OBD

NOTES

Run the engine until the fan engages.

AFTER REPAIR

JSAA3082. 0

17-29

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

CYLINDER 1 INJECTOR CIRCUIT

DF052 PRESENT OR STORED

CO CC.0 CC.1 DEF OBD

: : : : :

Open circuit Short circuit to earth Short circuit to +12V Unidentified electrical fault OBD fault (On Board Diagnostic)

NOTES

CO CC. 0 CC.1 DEF

Check the cleanliness, condition and connection of the injector rail connector. Clean or replace whichever is necessary. With the ignition on, check for the presence of +12 volts on the injector rail connector. (See connector track number in the corresponding wiring diagram). Check resistance of the cylinder 1 injector. (See value in the "HELP" section and connector track numbers in the corresponding wiring diagram). Change the injector if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Injection computer track L4 connector B cylinder 1 injector (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If this still does not work, remove the injector rail. Check the cleanliness and condition of the injector rail. Check the electrical continuity between the socket and the cylinder 1 injector. (See connector track numbers in the corresponding wiring diagram). If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

If the fault previously had the symbol "CO, CC. 0, CC.1 or DEF", the fault may change symbol and switch to "OBD". This is normal. Follow the instructions to confirm repair: If the fault is present with symbol "CO, CC. 0, CC.1 or DEF", continue to deal with the fault. If the fault is stored with symbol "CO, CC. 0, CC.1 or DEF", ignore it. If the fault is present or stored with symbol "OBD", ignore it. Deal with any other possible faults. Erase all stored faults.

AFTER REPAIR

JSAA3082. 0

17-30

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF052 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

If the symbol has changed to "CO, CC. 0, CC.1 or DEF", the electrical fault has been detected. Consequently, it must be dealt with like a present fault with symbol "CO, CC. 0, CC.1 or DEF". If the fault is still displayed with symbol "OBD" (On Board Diagnostic) after performing the instruction, the electrical fault was present several times but is no longer detected. Consequently, the circuit should be checked without replacing the parts which are not clearly identified as being faulty. To perform this check, use the fault finding procedure for the symbol "CO, CC. 0, CC.1 or DEF".

AFTER REPAIR

JSAA3082. 0

17-31

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

CYLINDER 2 INJECTOR CIRCUIT

DF053 PRESENT OR STORED

CO CC.0 CC.1 DEF OBD

: : : : :

Open circuit Short circuit to earth Short circuit to +12V Unidentified electrical fault OBD fault (On Board Diagnostic)

NOTES

CO CC.0 CC.1 DEF

Check the cleanliness, condition and connection of the injector rail connector. Clean or replace whichever is necessary. With the ignition on, check for the presence of +12 volts on the injector rail connector. (See connector track number in the corresponding wiring diagram). Check resistance of the cylinder 2 injector. (See value in the "HELP" section and connector track numbers in the corresponding wiring diagram). Change the injector if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Injection computer track L3 connector B cylinder 2 injector (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If this still does not work, remove the injector rail. Check the cleanliness and condition of the injector rail. Check the electrical continuity between the socket and the cylinder 2 injector. (See connector track numbers in the corresponding wiring diagram). If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

JSAA3082. 0

17-32

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF053 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

AFTER REPAIR

JSAA3082. 0

17-33

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

CYLINDER 3 INJECTOR CIRCUIT

DF054 PRESENT OR STORED

CO CC.0 CC.1 DEF OBD

: : : : :

Open circuit Short circuit to earth Short circuit to +12V Unidentified electrical fault OBD fault (On Board Diagnostic)

NOTES

CO CC.0 CC.1 DEF

Check the cleanliness, condition and connection of the injector rail connector. Clean or replace whichever is necessary. With the ignition on, check for the presence of +12 volts on the injector rail connector. (See connector track number in the corresponding wiring diagram). Check resistance of the cylinder 3 injector. (See value in the "HELP" section and connector track numbers in the corresponding wiring diagram). Change the injector if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Injection computer track L2 connector B cylinder 3 injector (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If this still does not work, remove the injector rail. Check the cleanliness and condition of the injector rail. Check the electrical continuity between the socket and the cylinder 3 injector. (See connector track numbers in the corresponding wiring diagram). If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

If the fault previously had the symbol "CO, CC. 0, CC.1 or DEF", the fault may change symbol and switch to "OBD". This is normal. Follow the instructions to confirm repair: If the fault is present with symbol "CO, CC.0, CC.1 or DEF", continue to deal with the fault. If the fault is stored with symbol "CO, CC.0, CC.1 or DEF", ignore it. If the fault is present or stored with symbol "OBD", ignore it. Deal with any other possible faults. Erase all stored faults.

AFTER REPAIR

JSAA3082. 0

17-34

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF054 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

If the symbol has changed to "CO, CC.0, CC.1 or DEF" after performing the instruction, the electrical fault has been detected. Consequently, it must be dealt with like a present fault with symbol "CO, CC.0, CC.1 or DEF". If the fault is still displayed with symbol "OBD" (On Board Diagnostic) after performing the instruction, the electrical fault was present several times but is no longer detected. Consequently, the circuit should be checked without replacing the parts which are not clearly identified as being faulty. To perform this check, use the fault finding procedure for the symbol "CO, CC.0, CC.1 or DEF".

AFTER REPAIR

JSAA3082. 0

17-35

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

CYLINDER 4 INJECTOR CIRCUIT

DF055 PRESENT OR STORED

CO CC.0 CC.1 DEF OBD

: : : : :

Open circuit Short circuit to earth Short circuit to +12V Unidentified electrical fault OBD fault (On Board Diagnostic)

NOTES

CO CC.0 CC.1 DEF

Check the cleanliness, condition and connection of the injector rail connector. Clean or replace whichever is necessary. With the ignition on, check for the presence of +12 volts on the injector rail connector. (See connector track number in the corresponding wiring diagram). Check resistance of the cylinder 4 injector. (See value in the "HELP" section and connector track numbers in the corresponding wiring diagram). Change the injector if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Injection computer track M2 connector B cylinder 4 injector (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If this still does not work, remove the injector rail. Check the cleanliness and condition of the injector rail. Check the electrical continuity between the socket and the cylinder 4 injector. (See connector track numbers in the corresponding wiring diagram). If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

If the fault previously had the symbol "CO, CC. 0, CC.1 or DEF", the fault may change symbol and switch to "OBD". This is normal. Follow the instructions to confirm repair: If the fault is present with symbol "CO, CC.0, CC.1 or DEF", continue to deal with the fault. If the fault is stored with symbol "CO, CC.0, CC.1 or DEF", ignore it. If the fault is present or stored with symbol "OBD", ignore it. Deal with any other possible faults. Erase all stored faults.

AFTER REPAIR

JSAA3082. 0

17-36

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF055 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

AFTER REPAIR

JSAA3082. 0

17-37

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

17-40

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF058 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

If the fault previously had the symbol "DEF", the fault may change symbol and switch to "OBD". This is normal. Follow the instructions to confirm repair: If the fault is present with symbol "DEF", continue to deal with the fault. If the fault is stored with symbol "DEF", ignore it. If the fault is present or stored with symbol "OBD", ignore it. Deal with any other possible faults. Erase all stored faults.

AFTER REPAIR

JSAA3082. 0

17-41

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF062 CONTINUED

OBD

NOTES

Run the engine until the fan engages.

If the symbol has changed to "CO.0, CC.1 or DEF" after performing the instruction, the electrical fault has been detected. Consequently, it must be dealt with like a present fault with symbol "CO.0, CC.1 or DEF". If the fault is still displayed with symbol "OBD" after performing the instruction, the electrical fault was present several times but is no longer detected. Consequently, the circuit should be checked without replacing the parts which are not clearly identified as being faulty. To perform this check, use the fault finding procedure for the symbol "CO.0, CC.1 or DEF".

If the fault previously had the symbol "CO.0, CC.1 or DEF", the fault may change symbol and switch to "OBD". This is normal. Follow the instructions to confirm repair: If the fault is present with symbol "CO.0, CC.1 or DEF", continue to deal with the fault. If the fault is stored with symbol "CO.0, CC.1 or DEF", ignore it. If the fault is present or stored with symbol "OBD", ignore it. Deal with any other possible faults. Erase all stored faults.

AFTER REPAIR

JSAA3082. 0

17-45

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

17-48

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

OXYGEN SENSOR OPERATING FAULT

DF102 PRESENT OBD : OBD fault (On Board Diagnostic) 1.OBD: OBD fault detected whilst driving

NOTES

Deal first with faults DF009, DF019, DF018, DF038, DF057 or DF058 if they are present.

Check that the manifold pressure sensor is correctly mounted. Check that the inlet line is sealed, from the throttle to the cylinder. Check that there are no defective seals. Check that the canister bleed circuit is sealed. Check that the manifold air temperature sensor is correctly mounted. Check that the throttle air temperature sensor is correctly mounted. Check that the resonator is not cracked. Check the condition and assembly of the upstream sensor. Replace the sensor if necessary. Check for air leaks on the exhaust system. If the vehicle is used frequently in towns, decoke the engine. Check the cleanliness, connection and condition of the upstream oxygen sensor connections. Change the connector if necessary. With the ignition on, check for the presence of +12 Volts on the upstream oxygen sensor. Repair if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track C1 connector C Oxygen sensor Computer track B1 connector C Oxygen sensor (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If the fault persists, change the oxygen sensor. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Deal with any other possible faults. Erase all stored faults.
JSAA3082. 0

17-49

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

CATALYTIC CONVERTER OPERATING FAULT

DF106 PRESENT OBD : OBD fault (On Board Diagnostic) 1.OBD: OBD fault present 2.OBD: OBD fault detected whilst driving

NOTES

Deal first with all other faults.

Check that the exhaust system is completely sealed. Repair if necessary. If the vehicle is used frequently in towns, decoke the engine. Check the condition and assembly of the downstream oxygen sensor. Check the connection and condition of the connector and the wires of the downstream oxygen sensor. Replace any parts if necessary. Visually check the condition of the catalytic converter. A deformity may be causing it to malfunction. Visually check for signs of thermal shock. A warm catalytic converter may be damaged if it comes into contact with cold water. Check that there has not been any excessive consumption of oil or coolant. Ask the customer if they have used an additive or other products of this kind. Such products can contaminate the catalytic converter and damage its performance sooner or later. This could destroy the catalytic converter. If the cause of the destruction is identified, it is possible to change the catalytic converter. If you are replacing the catalytic converter, make absolutely sure that the problem has been resolved otherwise the new catalytic converter may be damaged. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Deal with any other possible faults. Erase all stored faults.
JSAA3082. 0

17-50

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

POLLUTANT MISFIRES
DF109 PRESENT OBD : OBD fault (On Board Diagnostic) 1.OBD: OBD fault detected whilst driving

NOTES

Deal first with all other faults. Refer to statuses ET093, ET094, ET095 and ET096 to ascertain how may cylinders are misfiring.

Misfiring on one cylinder

This means that the problem is probably due to a component which can only act on this cylinder: Injector problem. Spark plug problem. (Check the conformity). HT lead problem. Ignition coil problem. This means that the problem is probably due to a component which can only act on this pair of cylinders: Ignition coil problem.

Misfiring on cylinders 1 and 4 or 2 and 3

Misfiring on all four cylinders

This means that the problem is probably due to a component which can only act on all the cylinders: Check the conformity of the fuel. Check the condition and conformity of the plugs.

If the problem is still present, perform the following checks: Check the flywheel sensor. Check the condition and cleanliness of the flywheel. Check the mounting of the flywheel sensor. Check the sensor / flywheel air gap. Check the cylinder compression. Check the whole fuel supply system. (See workshop repair manual). Check the whole ignition system. (See workshop repair manual).

AFTER REPAIR

Ensure that all faults have been dealt with. Erase the stored faults. It is not necessary to erase the programming. Checking that the system has been correctly repaired means: There should be no further electrical faults. All programming operations have been performed. The engine should be warm (minimum 75). The engine should be left at idle speed with all consumers engaged for 15 minutes. If the fault reappears, continue the fault finding procedure.
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17-51

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DESTRUCTIVE MISFIRE
DF110 PRESENT OBD : OBD fault (On Board Diagnostic) 1.OBD: OBD fault present 2.OBD: OBD fault detected whilst driving

NOTES

Deal first with any faults relating to the ignition or fuel supply system if they are present. Refer to statuses ET093, ET094, ET095 and ET096 to ascertain how may cylinders are misfiring.

Misfiring on one cylinder

Misfiring on cylinders 1 and 4 or 2 and 3

NOTES

Conditions for applying the fault finding procedure to the stored fault: The fault is declared present after the ignition has been switched on.

Check the cleanliness, connection and condition of the refrigerant pressure sensor. Clean or replace whichever is necessary. Check the electrical resistance of the refrigerant sensor. (See the value in the "HELP" section). Replace the sensor if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track H2 connector B Pressure sensor Computer track J3 connector B Pressure sensor Computer track H4 connector B Pressure sensor (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Erase all stored faults.
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17-55

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

OBD WARNING LIGHT CIRCUIT

DF120 PRESENT CO.0 CC.1 DEF OBD : : : : Open circuit or short circuit to earth Short circuit to +12 volts Unidentified electrical fault OBD fault (On Board Diagnostic)

NOTES

PEDAL POTENTIOMETER CIRCUIT

DEF: Consistency of pedal potentiometer tracks

NOTES

Deal first with faults DF125 or DF126 if they are present. Conditions for applying the fault finding procedure to the stored fault: The fault is declared as present in one of the following cases: When the ignition is switched on without pressing the accelerator pedal for the first 10 seconds. When the pedal potentiometer is varied gently from no load to full load. When the accelerator is in the full load position for 10 seconds.

Check that the pedal is not mechanically seized. Check the cleanliness, connection and condition of the pedal potentiometer connector. Change the connector if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track H3 connector A Pedal potentiometer Computer track G2 connector A Pedal potentiometer Computer track H2 connector A Pedal potentiometer Computer track F4 connector A Pedal potentiometer Computer track F2 connector A Pedal potentiometer Computer track F3 connector A Pedal potentiometer (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check that tracks 1 and 2 of the pedal potentiometer correctly follow their resistive curves.(See the values in the "HELP" section). Change the pedal potentiometer if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Erase all stored faults.
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17-62

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF130 PRESENT OR STORED

TRANSMISSION RATIO

DF134 PRESENT OR STORED

INSTRUMENT PANEL CONNECTION

DEF: Unidentified electrical fault

NOTES

None.

Test the multiplex network. Refer to the "Multiplex network" and "Instrument panel" sections in the Workshop Repair Manual. Perform a fault finding procedure on the "Instrument panel" system if necessary.

AFTER REPAIR

None.

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17-66

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF135 PRESENT OR STORED

BRAKE PEDAL SENSOR CIRCUIT

1.DEF : Fault on one brake pedal contact 2.DEF : Fault on both brake pedal contacts

NOTES

It is vital that the ABS is not defective when carrying out this test. Conditions for applying the fault finding procedure to the stored fault: The fault is declared present following a long press on the brake pedal.

Check the cleanliness, connection and condition of the dual-contact switch along with its connections. Clean or replace whichever is necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track E4 or G3 connector A Brake pedal switch Computer track H2 connector B Brake pedal switch (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Confirm the repair. Erase all stored faults.
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17-67

SAGEM 2000 PROGRAM No.: A3 VDIAG No.: 08

INJECTION Fault finding - Fault interpretation

DF136 PRESENT OR STORED

ACCELERATOR PEDAL / MOTORISED THROTTLE CIRCUIT

DEF : 1.DEF : 2.DEF : 3.DEF : Consistency between the pedal position and the motorised throttle position Fault on the +5 volt supply Fault on potentiometer supply 1 Fault on potentiometer supply 2

JSAA3082. 0

17-78

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Conformity check

Ignition on, engine stopped.

NOTES The values shown in this conformity check are only examples. If necessary, consult the specific function specifications in the Workshop Repair Manual.

Order

Function

Parameter or status Check or action SUPPLY FUNCTION ET001: Computer +after ignition

Display and notes

Fault finding

ACTIVE

Battery voltage PR 004: Computer supply voltage SENSOR FUNCTION Activate the starter motor 11.8 < X < 13.2 V

In the event of a problem: consult fault finding procedure PR004

Engine flywheel signal

ET060: Flywheel signal engine running

ACTIVE

In the event of a problem: consult fault finding procedure ET060 In the event of a problem: consult fault finding procedure PR002

Coolant temperature sensor

PR002: Coolant temperature

Engine temperature 5 C

Air temperature sensor

PR003: Air temperature

Temperature under bonnet 5 C

In the event of a problem: consult fault finding procedure PR003

PR016: Atmospheric pressure 5 Atmospheric pressure sensor PR001: Inlet manifold vacuum

1000 mb 3% (atmospheric pressure) 1000 mb 3% (atmospheric pressure)

In the event of a problem: consult fault finding procedure PR001

JSAA3082. 0

17-79

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Conformity check

Ignition on, engine stopped.

NOTES The values shown in this conformity check are only examples. If necessary, consult the specific function specifications in the Workshop Repair Manual.

Order

Function

Parameter or status Check or action PEDAL FUNCTION No-load accelerator pedal ET129: Accelerator pedal position: No load ET128: Accelerator pedal position: Full load PR112: Measured pedal position PR120: No-load programming of pedal

Display and notes

Fault finding

ACTIVE INACTIVE 15 1 15 1 In the event of a problem: consult fault finding procedure PR112

Accelerator pedal slightly pressed 6 Accelerator pedal ET129: Accelerator pedal position: No load ET128: Accelerator pedal position:Full load INACTIVE INACTIVE In the event of a problem: consult fault finding procedure PR112

Accelerator pedal fully pressed ET129: Accelerator pedal position: No load ET128: Accelerator pedal position: Full load PR112: Measured accelerator pedal position INACTIVE ACTIVE 92 4 In the event of a problem: consult fault finding procedure PR112

JSAA3082. 0

17-80

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Conformity check

Ignition on, engine stopped.

NOTES The values shown in this conformity check are only examples. If necessary, consult the specific function specifications in the Workshop Repair Manual.

Order

Function

Parameter or status Check or action Brake pedal released ET110: Brake pedal ET143: Brake pedal redundant (Confirmation signal)

Display and notes

Fault finding

INACTIVE INACTIVE

In the event of a problem: consult fault finding procedure ET110, ET143

Brake pedal Brake pedal pressed ET110: Brake pedal ET143: Brake pedal redundant (Confirmation signal) ACTIVE ACTIVE In the event of a problem: consult fault finding procedure ET110, ET143

Clutch pedal released In the event of a problem: consult fault finding procedure ET182

ET182: Clutch pedal switch

INACTIVE

Clutch pedal Clutch pedal pressed In the event of a problem: consult fault finding procedure ET182

ET182: Clutch pedal switch

ACTIVE

JSAA3082. 0

17-81

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Conformity check

Ignition on, engine stopped.

NOTES

The values shown in this conformity check are only examples. If necessary, consult the specific function specifications in the Workshop Repair Manual.

Order

Function

Parameter or status Check or action

Display and notes

Fault finding

MOTORIZED THROTTLE BODY FUNCTION No-load accelerator pedal ET111: Programming throttle stops ACTIVE In the event of a problem: turn off the ignition and wait for the dialogue to stop. Switch on the ignition again. In the event of a problem: a fault is declared by the diagnostic tool.

ET118: Motorized throttle in defect mode ET130: Motorized throttle body closed PR113: Motorized throttle body position specifications PR017: Measured throttle position PR110: Measured throttle position track 1 PR111: Measured throttle position track 2 9 Motorized throttle body PR119: Motorized throttle body bottom stop Accelerator pedal fully pressed ET118: Motorized throttle in defect mode ET131: Motorized throttle body open PR113: Motorized throttle body position specifications PR017: Measured throttle position PR110: Measured throttle position track 1 PR111: Measured throttle position track 2 PR118: Motorized throttle body top stop

INACTIVE

ACTIVE 15 2 15 2 15 2 15 2 13 2 In the event of a problem: a fault is declared by the diagnostic tool. In the event of a problem: consult fault finding procedure PR017

INACTIVE ACTIVE 91 3 91 3 91 3

In the event of a problem: consult fault finding procedure PR017

91 3 94 3
JSAA3082. 0

17-82

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Conformity check

Ignition on, engine stopped.

NOTES The values shown in this conformity check are only examples. If necessary, consult the specific function specifications in the Workshop Repair Manual.

Order

Function

Parameter or status Check or action

Display and notes

Fault finding

CRUISE CONTROL / SPEED LIMITER FUNCTION Switch in "Speed limiter" position ET192: Speed limiter control function Switch in "Cruise control" position ET192: Speed limiter control function Instrument panel switch in "Speed limiter" position and control switch on steering wheel pressed on + Cruise control/ speed limiter ET192: Speed limiter control function Instrument panel switch in "Speed limiter" position and control switch on steering wheel pressed on ET192: Speed limiter control function Instrument panel switch in "Speed limiter" position and control switch on steering wheel pressed to "suspend" position. ET192: Speed limiter control function STATUS5: Suspend switch pressed In the event of a problem: consult fault finding procedure ET192
JSAA3082. 0

STATUS1: Speed limiter function

In the event of a problem: consult fault finding procedure ET192

STATUS2: Cruise control

In the event of a problem: consult fault finding procedure ET192

STATUS3: Increase switch on

In the event of a problem: consult fault finding procedure ET192

STATUS4: Decrease switch on

In the event of a problem: consult fault finding procedure ET192

17-83

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Conformity check

Ignition on, engine stopped.

NOTES The values shown in this conformity check are only examples. If necessary, consult the specific function specifications in the Workshop Repair Manual.

Order

Function

Parameter or status Check or action Instrument panel switch in "Speed limiter" position and control switch on steering wheel pressed to "resume" position. ET192: Speed limiter control function

Display and notes

Fault finding

10 (Continued)

Cruise-control/ speed limiter

STATUS6: Resume switch pressed

In the event of a problem: consult fault finding procedure ET192

ACTUATOR CONTROLS You should hear the petrol pump operating In the event of a problem: consult fault finding procedure AC010 In the event of a problem: consult fault finding procedure AC271 In the event of a problem: consult fault finding procedure AC272 In the event of a problem: consult fault finding procedure AC016 In the event of a problem: consult fault finding procedure AC612

Fuel supply

AC010: Fuel pump relay

AC271: Fan assembly relay low speed 12 Fan AC272: Fan assembly relay high speed

The fan should be heard running at low speed The fan should be heard running at high speed The canister bleed solenoid valve should be heard operating The motorized throttle should be heard operating

Canister bleed

AC016: Canister bleed solenoid valve

Motorized throttle body

AC612 : Motorized throttle body

JSAA3082. 0

17-84

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Conformity check

Engine warm at idle speed, no electrical consumers.

NOTES The values shown in this conformity check are only examples. If necessary, consult the specific function specifications in the Workshop Repair Manual.

Order

Function

Parameter or status Check or action

Display and notes

Fault finding

Electrical supply function ET001: : + after ignition feed computer 1 Battery voltage PR004: Computer supply voltage Sensor function ET060: Flywheel signal engine running PR016: 3 Atmospheric pressure sensor Atmospheric pressure In the event of a problem: consult fault finding procedure ET060 In the event of a problem: consult fault finding procedure PR001 In the event of a problem: consult fault finding procedure PR013 13 < X < 14.5 V ACTIVE In the event of a problem: consult fault finding procedure PR004

Flywheel signal

ACTIVE

1000 mb 3% (atmospheric pressure) 280 < X < 360 mb Should not be equal to 0. Should change when engine speed changes. X5

PR001: Inlet manifold vacuum PR013: Pinking signal

Pinking sensors PR015: Pinking signal correction

Fan assembly function PR002: Coolant temperature ET035: Low-speed fan The fan should cut in when the coolant temperature exceeds 99C ACTIVE The fan should cut in when the coolant temperature exceeds 102 C ACTIVE In the event of a problem: consult fault finding procedure ET036 In the event of a problem: consult fault finding procedure ET035

Cooling fan assembly

PR002: Coolant temperature ET036: High-speed fan

JSAA3082. 0

17-85

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Conformity check

Engine warm at idle speed, no electrical consumers.

NOTES

The values shown in this conformity check are only examples. If necessary, consult the specific function specifications in the Workshop Repair Manual.

Order

Function

Parameter or status Check or action

Display and notes

Fault finding

Idle speed regulation function ET039: Idle speed regulation ACTIVE 725 < X < 775 rpm 725 < X < 775 rpm Between 0 and 16 rpm as required

PR 006: Engine speed PR041: Engine idling speed reference PR055: Engine idling speed reference in After Sales (Option of reducing or increasing the idling speed by means of parametric commands VP004 and VP003) PR040: Engine idling speed range PR022: RCO signal idling PR021: Modification of RCO signal idling

Idle speed regulation

In the event of a problem: consult fault finding procedure ET039

Road test
NOTES The values shown in this conformity check are only examples. If necessary, consult the specific function specifications in the Workshop Repair Manual.

Order

Function

Parameter or status Check or action Sensor function Vehicle under load. PR013: Pinking signal PR015: Pinking signal correction

Display and notes

Fault finding

Pinking sensor

Should not be equal to 0. Should change when engine speed changes. X5 1000 mb 3% (atmospheric pressure) 280 < X < 360 mb

In the event of a problem: consult fault finding procedure PR013 In the event of a problem: consult fault finding procedure PR001

Atmospheric pressure sensor

PR016: Atmospheric pressure PR001: Inlet manifold vacuum

Restart the conformity check from the beginning.

JSAA3082. 0

17-91

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Status interpretation

RICHNESS REGULATION
ET037

NOTES

There must be no faults present or stored.

If the vehicle is used frequently in towns, decoke the engine. Check the cleanliness, connection and condition of the upstream oxygen sensor connector. Change the connector if necessary. Check the heating resistance of the upstream oxygen sensor. (See the value in the "HELP" section). Replace the upstream oxygen sensor if necessary. Check the signal circuit resistance of the upstream oxygen sensor. (See the value in the "HELP" section). Replace the upstream oxygen sensor if necessary. With the ignition on, check for the presence of + 12 volts on the upstream oxygen sensor connector. (See connector track number in the corresponding wiring diagram). Repair if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track C1 connector C Upstream oxygen sensor Computer track B1 connector C Upstream oxygen sensor Computer track G1 connector C Upstream oxygen sensor (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check the condition of the air filter. Check the plugs and the complete ignition circuit. Check that the canister bleed circuit is sealed. Check that the inlet manifold and exhaust system are completely sealed. Check the whole fuel supply system and filter. Check the fuel pressure. If idling is irregular, check the valve clearances and the timing.

Change the oxygen sensor if the incident persists.

AFTER REPAIR

Restart the conformity check from the beginning.

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17-92

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Status interpretation

IDLE SPEED REGULATION

ET039

NOTES

There must be no faults present or stored.

NOTES

Idle speed is too slow.

Clean the air supply circuit (throttle body, idle speed regulation stepper motor), since it may be dirty. Check the engine oil level (too high --> splashing). Check the engine compression Check the valve clearances and timing. Check ignition. Check the injectors

NOTES

Idle speed is too high.

Check the engine oil level. Check that the pressure sensor is operating correctly. Check the correctness of the pipes on the manifold. Check the pneumatically controlled solenoid valves. Check the manifold gaskets. Check the throttle body gaskets. Check the brake servo sealing. Check that the restrictions are present in the oil vapour rebreathing circuit. Check the valve clearances and timing.

AFTER REPAIR

Restart the conformity check from the beginning.

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17-93

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Status interpretation

FLYWHEEL SIGNAL WITH ENGINE RUNNING

ET060

NOTES

There must be no faults present or stored.

Check the cleanliness, connection and condition of the target sensor, its connector and the cable. Replace any parts if necessary. Check that the flywheel sensor is correctly mounted . Check the sensor / flywheel air gap . Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track E4 connector B Target sensor Computer track F3 connector B Target sensor (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check the resistance of the target sensor. (See the value in the "HELP" section). Replace the sensor if necessary. If there is still a fault, check the cleanliness and condition of the flywheel.

AFTER REPAIR

Restart the conformity check from the beginning.

JSAA3082. 0

17-94

INJECTION Fault finding - Status interpretation

CRUISE CONTROL/SPEED LIMITER

17-103

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Parameter interpretation

COMPUTER SUPPLY VOLTAGE

PR004

NOTES

There must be no faults present or stored. No electrical consumers.

Ignition on

If the voltage is minimum: Check the battery and charge circuit. (See the corresponding section in the workshop repair manual). If the voltage is maximum: Check the charge circuit with and without electrical consumers. (See the corresponding section in the workshop repair manual).

At idle speed

If the voltage is minimum: Check the battery and charge circuit. (See the corresponding section in the workshop repair manual). If the voltage is maximum: Check that the charging voltage is correct with and without electrical consumers. (See the corresponding section in the workshop repair manual).

AFTER REPAIR

Restart the conformity check from the beginning.

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17-104

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Parameter interpretation

PINKING SIGNAL
PR013

NOTES

There must be no faults present or stored.

The pinking sensor should give a signal which is not zero, to prove that it is recording the mechanical vibrations of the engine. Check the conformity of the fuel in the fuel tank. Check the conformity of the spark plugs. Check the pinking sensor is tight. Check the cleanliness, connection and condition of the sensor and the connector. Replace any parts if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Computer track A2 connector B Pinking sensor Computer track B2 connector B Pinking sensor Computer track C2 connector B Pinking sensor screening (See connector track numbers in the corresponding wiring diagram). Repair if necessary. If the fault persists, change the pinking sensor.

AFTER REPAIR

Restart the conformity check from the beginning.

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17-105

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Parameter interpretation

MEASURED THROTTLE POSITION

PR017

Warning: Never drive the vehicle without having checked that the computer does not contain any faults relating to the "Throttle body". NOTES There must be no faults present or stored.

Check that there are no foreign bodies in the throttle valve. Check the cleanliness, connection and conditionof the throttle position potentiometer connectors. Replace any parts if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track G4 connector B Throttle potentiometer Computer track D3 connector B Throttle potentiometer Computer track G2 connector B Throttle potentiometer Computer track G3 connector B Throttle potentiometer (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check that the resistances of the throttle position potentiometer, tracks 1 and 2, are correctly following their curves, by varying the throttle from no load to full load. (See the values in the "HELP" section). Correct or change the throttle position potentiometer if necessary.

AFTER REPAIR

If the throttle body has been replaced, all programmed values must be reinitialised ("RZ008"). Restart the conformity check from the beginning.
JSAA3082. 0

17-106

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Parameter interpretation

RICHNESS ADAPTIVE OPERATION

PR030

NOTES

There must be no faults present or stored. If the PR030 or PR031 is near the min. stop, there is too much petrol. If the PR030 or PR031 is near the max. stop, there is insufficient petrol.

Check the cleanliness, connection and condition of the high-speed fan assembly relay connector. Change the connector if necessary. Disconnect the high-speed fan relay. With the ignition on, check for +12 V on track 1 of the relay Repair if necessary. Check the resistance of the high-speed fan assembly relay on tracks 1 and 2. (See the value in the "HELP" section). Change the high-speed fan relay if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connection: Computer track F2 connector C High-speed fan relay (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check the insulation, the continuity and the absence of interference resistance of the connection between track 5 of the relay and the fan assembly. Repair if necessary. Check the insulation, the continuity and the absence of interference resistance of the earth connection of the fan assembly. Repair if necessary. Check the condition of the fan assembly. Replace the fan assembly if necessary.

AFTER REPAIR

Restart the conformity check from the beginning.

JSAA3082. 0

17-112

SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION
Fault finding - Command interpretation

MOTORISED THROTTLE
AC612

Warning: Never leave a vehicle on the road without having checked that the computer does not contain any faults relating to the "Throttle body". NOTES There must be no faults present or stored.

Check the cleanliness of the throttle body and that the throttle rotates correctly. Clean or replace whichever is necessary. Check the cleanliness, connection and condition of the connections. Clean or replace whichever is necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Computer track M3 connector B Motorised throttle body Computer track M4 connector B Motorised throttle body Computer track G4 connector B Motorised throttle body (See connector track numbers in the corresponding wiring diagram). Repair if necessary. Check the electrical resistance of the throttle motor. (See the value in the "HELP" section). Clean or change the throttle body if necessary.

AFTER REPAIR

If the throttle body has been replaced, all programmed values must be reinitialised ("RZ008"). Restart the conformity check from the beginning.
JSAA3082. 0

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SAGEM 2000 PROGRAM No: A3 VDIAG No: 08

INJECTION Fault finding - Help

ELECTRICAL RESISTANCE OF COMPONENTS

Resistance values of components at 20 C:

Injectors

1.8 ohms 5%

Actuator relays

65 ohms 10%

Throttle motor

1.5 ohms 5%

Canister bleed solenoid valve

25 ohms 10%

Primary ignition coils

0.5 ohms

Secondary ignition coils

11 kohms 20%

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17
230 ohms 20%

INJECTION Fault finding - Help

Values of variable resistance components:

Temperature in C Manifold air temperature sensor in ohms Coolant temperature sensor in ohms

- 10 10450 to 8585

25 2120 to 1880 2360 to 2140

50 860 to 760 850 to 770

110

290 to 275

117 to 112

Accelerator pedal potentiometer (20C) No load track 1

Tracks G2 and H2, connector Tracks H3 and H2, connector A of computer A of computer 1950 ohms 20% 3240 ohms 20% Tracks G2 and H2, connector Tracks H3 and H2, connector A of computer A of computer 1600 ohms 20% 3100 ohms 20% Tracks F2 and F3, connector A of computer 4530 ohms 20% Tracks F2 and F3, connector A of computer 5600 ohms 20% Tracks F3 and F4, connector A of computer 1920 ohms 20% Tracks F3 and F4, connector A of computer 5350 ohms 20%

Full load track 1

No load track 2

Full load track 2

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Throttle position potentiometer MGI (20C) Throttle position "Limp-home" track 1

(Throttle position, engine stopped) Tracks G3 and G2, connector Tracks G3 and G4, connector B of computer B of computer 1910 ohms 20% 1180 ohms 20%

Throttle position full open track 1

(Keep the throttle open manually)

Tracks G3 and G2, connector Tracks G3 and G4, connector B of computer B of computer 1940 ohms 20% 740 ohms 20%

Throttle position "Limp-home" track 2

(Throttle position engine stopped)

Tracks D3 and G2, connector Tracks D3 and G4, connector B of computer B of computer 1770 ohms 20% 1045 ohms 20%

Throttle position full open track 2

(Keep the throttle open manually)

Tracks D3 and G2, connector Tracks D3 and G4, connector B of computer B of computer 685 ohms 20% 1890 ohms 20%

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INJECTION Fault finding - Customer complaints

NOTES

Only consult the customer complaints after a complete check using the diagnostic tool.

NO COMMUNICATION WITH THE COMPUTER

CHART 1

THE ENGINE WILL NOT START

CHART 2

IDLE SPEED FAULTS

CHART 3

PROBLEMS WHEN DRIVING

CHART 4

AFTER REPAIR

Test using the diagnostic tool.

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CHART 1

NO COMMUNICATION WITH THE COMPUTER

NOTES

None.

Check the condition of the battery and the vehicle earths. Repair if necessary. Try the diagnostic tool on another vehicle. Check the injection, engine and passenger compartment fuses. Check the cleanliness and condition of the diagnostic socket on the vehicle and its connections. Use the diagnostic socket to check the following tracks: Track 1 + after ignition feed Track 16 + battery feed Tracks 4 and 5 Earth Repair if necessary. Disconnect the battery. Disconnect the computer. Check the cleanliness and condition of the connections. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the following connections: Injection computer track H1 connector C Earth Injection computer track H4 connector A Earth Injection computer track G4 connector A Earth Injection computer track B4 connector A Diagnostic socket track 7 Injection computer track A4 connector B + after ignition feed Injection computer track G2 connector C + after ignition Repair if necessary. Check the cleanliness, connection and condition of the injection actuator relay connectors. Change the connector if necessary. Check the resistance of the injection actuator relay. (See the value in the "HELP" section). Change the actuator relay if necessary. Check for the presence of + 12 volts on track 1 of the injection actuator relay. Rectify the line to the fuse. Check the insulation and continuity of the connection between: Injection computer track D4 connector B Injection actuator relays Repair if necessary.

AFTER REPAIR

Test using the diagnostic tool.

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INJECTION Diagnostic - Fault finding charts

CHART 2

THE VEHICLE WILL NOT START

NOTES

Follow CHART 2 after a full check using the diagnostic tool. (Refer to the Workshop Repair Manual for specific operations if necessary).

If the starter motor does not engage, there may be a problem with the engine immobiliser. Check the engine immobiliser using the diagnostic tool. Check that the impact sensor is not switched on. Check that it is functioning correctly. Check the cleanliness and condition of the battery. Check that the battery is correctly earthed to the vehicle body. Check the battery connections. Check the battery charge.

Check that the starter motor is properly connected. Check that the starter motor is operating correctly. (See the corresponding section in the workshop repair manual). Check that the ignition coil unit is not cracked. Check the condition and cleanliness of the ignition coil unit. Check the condition and conformity of the plugs. Check the secondary ignition circuit. Check the mounting, the cleanliness, the condition and the air gap of the flywheel signal sensor. Check the condition of the flywheel.

Ensure that the air intake circuit is not blocked. Check that there is petrol in the tank (the petrol gauge may be faulty). Check that the tank vent is not blocked. Check that the petrol is of the proper type. Check that there are no leaks in the fuel circuit, from the tank to the injectors. Check that no hoses are pinched (especially after a removal operation). Check the condition of the petrol filter. Check the reliability of the petrol pump Check the fuel pressure. Check that the injectors operate correctly.

Check that the exhaust system is not blocked nor the catalytic converter clogged. Check the timing. Check the engine compression

AFTER REPAIR

Test using the diagnostic tool.

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CHART 3

IDLE SPEED PROBLEMS

NOTES

Follow CHART 3 after a full check using the diagnostic tool. (Refer to the Workshop Repair Manual for specific operations if necessary).

Check on the dipstick that the oil level is not too high Check the condition and cleanliness of the ignition coil unit. Check the condition and conformity of the plugs. Check the secondary ignition circuit. Check the mounting, the cleanliness, the condition and the air gap of the flywheel signal sensor. Check condition and the cleanliness of the flywheel.

Ensure that the air intake circuit is not blocked. Check that the inlet line is sealed, from the throttle to the cylinder. Check that there are no defective seals. Check that the canister bleed is not disconnected nor blocked open. Check that there are no leaks on the canister bleed circuit. Check that there are no leaks on the brake servo circuit. Check that the manifold air temperature sensor is correctly mounted. Check that the manifold pressure sensor is correctly mounted. Check that the resonator is not cracked. Check that throttle valve unit is not clogged. Check that the throttle rotates correctly. Check that the tank vent is not blocked. Check that the petrol is of the proper type. Check that there are no leaks in the fuel circuit, from the tank to the injectors. Check that no hoses are pinched (especially after a removal operation). Check the condition of the petrol filter. Check the reliability of the fuel pump. Check the fuel pressure. Check that the injectors operate correctly.

Check that the exhaust system is not blocked nor the catalytic converter clogged. Check the timing. Check the engine compression

AFTER REPAIR

Test using the diagnostic tool.

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CHART 4

PROBLEMS WHEN DRIVING

NOTES

Follow CHART 4 after a full check using the diagnostic tool. (Refer to the Workshop Repair Manual for specific operations if necessary).

Check on the dipstick that the oil level is not too high Check the exhaust manifold is not leaking. Check the condition of the air filter. Check the condition and cleanliness of the ignition coil unit. Check the condition and conformity of the plugs. Check the secondary ignition circuits. Check the mounting, the cleanliness, the condition and the air gap of the flywheel signal sensor. Check condition and the cleanliness of the flywheel.

Ensure that the air intake circuit is not blocked. Check that the inlet line is sealed, from the throttle to the cylinder. Check that there are no defective seals. Check that the canister bleed is not disconnected nor blocked open. Check that there are no leaks on the canister bleed circuit. Check that there are no leaks on the brake servo circuit. Check that the manifold air temperature sensor is correctly mounted. Check that the manifold pressure sensor is correctly mounted. Check that the resonator is not cracked. Check that throttle valve unit is not clogged. Check that the throttle rotates correctly. Check that the tank vent is not blocked. Check that the petrol is of the proper type. Check that there are no leaks in the fuel circuit, from the tank to the injectors. Check that no hoses are pinched (especially after a removal operation). Check the condition of the petrol filter. Check the reliability of the petrol pump Check the fuel pressure. Check that the injectors operate correctly.

Check that the exhaust system is not blocked nor the catalytic converter clogged. Check the timing. Check the engine compression

AFTER REPAIR

Test using the diagnostic tool.

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5 NR Vdiag No.: 04

PETROL INJECTION Fault finding - Introduction

This document contains the general fault finding procedures applicable to all "5NR, VDIAG 04" computers fitted to all CLIO II vehicles from June 2001 (European version). To undertake fault finding on this system, it is essential to have the following items available: The section of the Workshop Repair Manual, The wiring diagrams for the function on the vehicle concerned, The test bornier No. 1618 El, a multimeter and the CLIP or NXR diagnostic tool.

GENERAL APPROACH TO FAULT FINDING Use one of the diagnostic tools to identify the system fitted to the vehicle (to read the computer group, the program number, the Vdiag, etc.). Identification is made by reading the following information:

COMPUTER PART NUMBER VDIAG NUMBER PROGRAM NUMBER (from:)

5 NR 04 24

Locate the Fault finding documents corresponding to the system identified. Take note of information contained in the introductory sections.

DESCRIPTION OF THE FAULT FINDING PHASES 1 - CHECKING THE FAULTS It is essential to start with this phase before any work is done on the vehicle. Order of priority Electrical faults must be dealt with before OBD (on-board diagnostics) faults (DF111, DF112, DF113, DF114, misfires in cylinders 1 to 4; DF165 detection of misfires; DF102 oxygen sensor operating fault; DF106 catalytic converter operating fault; DF116 fuel system operating fault). Note that no electrical fault may be present or stored in the memory when dealing with OBD (on-board diagnostics) operating faults. Other priorities are dealt with in the "NOTES" section of the diagnostic procedure for the fault in question. Reminder: Each fault is interpreted for a particular type of storage (fault present, fault stored in memory, fault present or stored). The checks defined for handling each fault are therefore only to be performed if the fault shown by the diagnostic tool is interpreted in the document for its type of storage. The storage type should be considered when using the diagnostic tool after the ignition has been switched off and switched back on. If a fault is interpreted when it is declared stored, the conditions for application of the fault finding procedure appear in the NOTES box. If these conditions are not satisfied, use the fault finding procedure to check the circuit of the faulty part concerned. This indicates that the fault is no longer present on the vehicle. Perform the same procedure if a fault is declared "stored" by the diagnostic tool and it is only interpreted in the document as a "present" fault.

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2 - CONFORMITY CHECK The conformity check is designed to check the statuses and parameters which do not display any faults on the diagnostic tool when they are outside the permitted tolerance values. This phase allows: Breakdowns to be diagnosed without a fault being displayed (e.g. as a result of a customer complaint). Correct operation of the injection to be checked to ensure that after repair the parameters and statuses are correct. This section gives the diagnostic procedures for statuses and parameters and the conditions for checking them. If a status is not operating normally or a parameter is outside permitted tolerance values, you should consult the diagnostic page corresponding to the element concerned. N.B.: the substitution values shown in the conformity check correspond to the default values that the computer uses when the element concerned no longer sends information to the computer or the information is inconsistent.

DF003 PRESENT

CC.0 : SHORT-CIRCUIT TO EARTH CO.1 : OPEN CIRCUIT OR SHORT CIRCUIT TO +12 V

CO : OPEN CIRCUIT CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT-CIRCUIT ON + 12 V

NOTES

None.

Check the connection and condition of the pinking sensor connector. Change the connector if necessary. Check that the pinking sensor is tightned to torque (see repair methods for manufacturer's value). Ensure that the engine does not make an abnormal noise. If there is an abnormal noise, start by eliminating the cause of the noise before checking the sensor. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer connector B track C2 track 1 of the pinking sensor computer connector B track C3 track 2 of the pinking sensor computer connector B track D2 shielding of the sensor Repair if necessary. If the fault persists, change the pinking sensor.

AFTER REPAIR

Clear the fault memory. Deal with any other possible faults.
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FUEL PUMP CONTROL RELAY CIRCUIT

DF008 PRESENT

CC.1 : SHORT-CIRCUIT TO + 12 V CO.0 : OPEN CIRCUIT OR SHORT CIRCUIT TO EARTH

NOTES

None.

Check the condition of the clips of the fuel pump relay on the engine fuse and relay board (see diagrams for the vehicle and model year concerned). Replace the clips if necessary. With the ignition switched on, check the presence of a + 12 volts supply on track 3 and on track 1 of the fuel pump relay, with relay in place on the plate. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector A track G1 track 2 of the fuel pump relay Repair if necessary. Check the resistance value of the relay by measuring between: Track 1 and track 2 of the fuel pump relay. Replace the relay if the resistance is not approximately 84 2 at 25C.

AFTER REPAIR

Run the AC010 fuel pump relay command to check that the pump is operating correctly. Clear the fault memory. Deal with any other possible faults.
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LOW SPEED FAN CIRCUIT
CO : OPEN CIRCUIT CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT-CIRCUIT TO + 12 V

DF010 PRESENT OR STORED

Priority for dealing with a combination of faults: First, deal with the "DF004 coolant temperature sensor circuit and DF032 coolant temperature overheating warning light circuit" faults if these are present or stored. NOTES Condition for the application of the fault finding procedure to a stored fault. The fault is declared present after the engine is started or the AC626 fan unit, low speed command is run from the diagnostic tool.

Check the condition of the clips of the fan unit low speed relay (on the engine fuse and relay board). Replace the clips if necessary. With the ignition switched on, check the presence of +12 volts on track 3 and track 1 of the fan unit low speed relay. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector A track C2 track 2 of the fan unit low speed relay. Repair if necessary. Check the resistance value of the relay by measuring between: Track 1 and track 2 of the fan unit low speed relay. Replace the relay if the resistance is not approximately 64 2 at 25C. Check the supply and the earth connection of the low-speed fan assembly. If this is correct, check the condition and correct operation of the low-speed fan assembly.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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PETROL INJECTION Fault finding - Fault interpretation

CANISTER BLEED SOLENOID VALVE CIRCUIT
CO : OPEN CIRCUIT CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT-CIRCUIT TO + 12 V

DF014 PRESENT OR STORED

Priority for dealing with a combination of faults: First, deal with the DF076 main relay, DF157 battery voltage and DF236 after relay feed faults if they are present or stored.

NOTES

Conditions for applying the fault finding procedures to the fault stored: The fault is declared present when the engine is warm and running at 1500 rpm or the "AC016 canister bleed solenoid valve" command is started.

Special notes: The valve is normally closed when the engine is not running. Bleeding takes place with the engine running (but not at idle speed). A canister valve which is mechanically jammed will not be detected by the electrical diagnostic system, but if there is an input signal fault on the upstream sensor (DF207), follow mechanical fault finding for the valve (if the valve is jammed open).

Check the connection and condition of the canister bleed solenoid valve connector. Change the connector if necessary. With the ignition switched on, check the presence of +12 V on track 1 of the canister bleed solenoid valve. If there is no feed, check the insulation, continuity and absence of interference resistance of the connection: injection relay track 5 track 1 of the canister bleed solenoid valve. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector A track M3 track 2 of the canister bleed solenoid valve Repair if necessary. Check the resistance value of the relay by measuring between: Track 1 and track 2 of the low-speed fan assembly relay. Replace the relay if the resistance is not approximately 26 4 at 23C. If the fault persists, change the canister bleed solenoid valve.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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UPSTREAM OXYGEN SENSOR HEATER CIRCUIT
CC : SHORT-CIRCUIT

DF018 PRESENT OR STORED

Priority for dealing with a combination of faults: First, deal with the "DF076 main relay and DF157 battery voltage" faults if they are present or stored. NOTES Condition for the application of the fault finding procedure to a stored fault. The fault is declared present after the engine has been started.

Check the connection and condition of the oxygen sensor connector and replace the connector if necessary. With the ignition switched on, check the presence of +12 V on track A of the oxygen sensor. If there is no feed, check the insulation, continuity and absence of interference resistance of the connection: injection locking relay track 5 track A of the upstream oxygen sensor Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector B track M4 track B of the upstream oxygen sensor Repair if necessary. Check the resistance value of the oxygen sensor heater by measuring between: Track A and track B of the sensor. Replace the sensor if the resistance is not approximately 3.3 0.5 at 23C. If the incident persists, change the oxygen sensor.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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COMPUTER

DF022 PRESENT

1.DEF : COMPUTER INTERNAL ELECTRICAL FAULT

NOTES

Priority for dealing with a combination of faults: First, deal with the "DF236 + after relay feed" fault if it is present or stored.

PETROL INJECTION Fault finding - Fault interpretation

IGNITION COIL 2-3 CIRCUIT
CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT-CIRCUIT TO + 12 V

DF062 PRESENT OR STORED

Priority for dealing with a combination of faults: First, deal with the DF076 main relay, DF157 battery voltage and DF236 + after relay feed faults if they are present or stored.

NOTES

Condition for the application of the fault finding procedure to a stored fault. The fault is declared present after the engine has been started.

Check the connection and condition of the coil unit connector. Change the connector if necessary. With the ignition on, check for the presence of +12 V on track B of the ignition coil unit. If there is no feed, check the insulation, continuity and absence of interference resistance of the connection: fuel pump relay track 5 track B of the coil unit. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector B track M2 track A of the coil connector. Repair if necessary. Check the resistance value of the coil by measuring between: Track B and track A of the coil. Replace the coil unit if the resistance is not approximately 0.4 0.02 at 25C. If the fault persists, change the coil unit.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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VEHICLE SPEED SIGNAL
1.DEF : VEHICLE SPEED SENSOR SIGNAL ERRATIC

DF064 PRESENT OR STORED

NOTES

Condition for the application of the fault finding procedure to a stored fault. Carry out a test drive cycle at over 4 mph (5 km/h). When the coolant temperature is equal to or greater than 30C, go into cutoff mode (no load deceleration) for 4 seconds while maintaining the engine speed in the range between 2000 and 5000 rpm.

Special note: The computer receives the vehicle speed information through the multiplex network.

Fault finding procedure for vehicles not equipped with the electronic stability program. Check the multiplex network using the diagnostic tool. Using the parameter window of the diagnostic tool, make sure that the vehicle speed appears consistent: PR018 (vehicle speed). If the speed shown is inconsistent, refer to the fault finding procedure for the ABS system and the instrument panel; this passes on the vehicle speed information supplied by the ABS system computer.

Fault finding procedure for vehicles equipped with the electronic stability program. Check the multiplex network using the diagnostic tool. If the diagnostic tool does not show a fault, refer to the fault finding procedure for the ABS system.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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MAIN RELAY
CO : OPEN CIRCUIT CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT-CIRCUIT TO + 12 V

DF076 PRESENT OR STORED

Condition for the application of the fault finding procedure to a stored fault. The fault is declared present after the engine has been started. NOTES Special notes: The main relay may be called the injection locking relay on the injection wiring diagrams.

Connect the bornier in place of the computer and check the resistance value of the injector by measuring between: Track K3 of computer connector B and track 5 of the main relay (or track C of the grey 3-way connector on top of the computer). The injector should have a resistance approximately 14.5 0.7 at 23C (this value does not take into account any interference resistance in the line). Make sure that track K3 of computer connector B is insulated from earth and from +12 volts and that track 5 of the main relay is insulated from earth. If the measurement gives an incorrect value: remove the inlet manifold to gain access to the injectors. Check the connection and condition of the no. 3 cylinder injector connector. Change the connector if necessary. With the ignition switched on, check the presence of +12 volts on track 1 of the injector. If there is no feed, check the insulation, continuity and absence of interference resistance of the connection: main relay track 5 track 1 of injector no. 3 Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: computer connector B track K3 track 2 of injector no. 3 Repair if necessary. If the fault persists, change injector no. 3.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.

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CYLINDER 4 INJECTOR CONTROL
CO : OPEN CIRCUIT CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT-CIRCUIT TO + 12 V

DF087 PRESENT OR STORED

Connect the bornier in place of the computer and check the resistance value of the injector by measuring between: Track K4 of computer connector B and track 5 of the main relay (or track C of the grey 3-way connector on top of the computer). The injector should have a resistance approximately 14.5 0.7 at 23C (this value does not take into account any interference resistance in the line). Make sure that track K4 of computer connector B is insulated from earth and from +12 volts and that track 5 of the main relay is insulated from earth. If the measurement gives an incorrect value: remove the inlet manifold to gain access to the injectors. Check the connection and condition of the no. 4 cylinder injector connector. Change the connector if necessary. With the ignition switched on, check the presence of +12 volts on track 1 of the injector. If there is no feed, check the insulation, continuity and absence of interference resistance of the connection: main relay track 5 track 1 of injector no. 4 Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector B track K4 track 2 of injector no. 4 Repair if necessary. If the fault persists, change injector no. 4.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.

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OXYGEN SENSOR OPERATING FAULT
1.DEF : REDUCED FREQUENCY

DF102 PRESENT OR STORED

Priority for dealing with a combination of faults: First deal with the following faults if they are present or stored: DF084, DF085, DF086, DF087, cylinders 1 to 4 injector controls; DF018, DF038, DF207, DF208, input signal and heater circuit for both oxygen sensors, DF111, DF112, DF113, DF114, DF165, detection of engine misfires and DF106 catalytic converter operating fault.

NOTES

Condition for the application of the fault finding procedure to a stored fault. The fault is declared present after a test drive cycle or engine warm-up at idle speed which enables the richness regulation phase of the two sensors to start: The ET185 upstream sensor richness loop status should have the designation STATUS2: closed loop. The ET184 2nd richness loop control status should have the designation STATUS2 : closed loop. Make sure that the engine cooling fan cuts in at least twice. Set the engine speed to 3000 rpm, then start an OBD (on-board diagnostics) test of the oxygen sensors (see introduction).

Special notes: This fault finding procedure only concerns the upstream oxygen sensor. If the presence of this fault is confirmed (three journeys with this fault), the OBD (onboard diagnostics) warning light comes on.

Carry out a check on the fuel pressure (check the regulator and the fuel pump). Make sure there are no air leaks into the exhaust system. Repair if necessary. Verify the condition of the air intake circuit and its filter element. Repair if necessary. If there is no fault on the upstream sensor input signal, replace the upstream oxygen sensor. Otherwise, carry out the DF207 fault finding procedure.

AFTER REPAIR

Carry out reprogramming (see introduction). Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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CATALYTIC CONVERTER OPERATING FAULT
1.DEF : CATALYTIC CONVERTER OPERATING FAULT

DF106 PRESENT OR STORED

Priority for dealing with a combination of faults: First deal with the following faults if they are present or stored: DF084, DF085, DF086, DF087, cylinders 1 to 4 injector commands; DF018, DF038, DF102, DF207, DF208, input signal and heater circuit for both oxygen sensors, and DF111, DF112, DF113, DF114, DF165, detection of engine misfires.

NOTES

Check the ignition system and the condition of the plug and the radio interference suppresser. Repair if necessary. Check the compression ratio of cylinder 4. Repair if necessary. Check the engine flywheel target (disc warped or cracked). Repair if necessary. Make sure there is no leakage at the inlet manifold and that the filter element is in good condition. Repair if necessary. If no fault is found, then there must be a problem with the fuel system. Therefore check: condition of the fuel filter fuel flow rate and pressure. cleanness of the tank. condition of the injector of cylinder 4, Conformity of the fuel. Replace the defective component.

AFTER REPAIR

Carry out reprogramming (see introduction). Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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PETROL INJECTION Fault finding - Fault interpretation

FUEL SYSTEM OPERATING FAULT

DF116 PRESENT OR STORED

1.DEF : 2.DEF : 3.DEF : 4.DEF : 5.DEF : 6.DEF :

O2SENSOR FAULT: WEAK MIXTURE O2 SENSOR FAULT: RICH MIXTURE WEAK MIXTURE DRIFT RICH MIXTURE DRIFT WEAK MIXTURE GAIN RICH MIXTURE GAIN

Priority for dealing with a combination of faults: First deal with the "DF084 to DF087 cylinders 1 to 4 injector commands" faults if they are present or stored.

NOTES

Condition for the application of the fault finding procedure to a stored fault. The fault is declared present after a test drive cycle or engine warm-up at idle speed which enables the mixture control phase of the two sensors to start: The ET185 upstream sensor mixture loop status should have the designation STATUS2: closed loop. The ET184 2nd mixture loop control status should have the designation STATUS2 : closed loop. Make sure that the engine cooling fan cuts in at least twice. Start the OBD (on-board diagnostics) fuel system test.

Carry out a fuel pressure check (see repair methods). Carry out a check on the canister drain solenoid valve circuit (see repair methods). Make sure that there are no leaks in the fuel system. Repair if necessary.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Carry out reprogramming. Deal with any other possible faults.
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PETROL INJECTION Fault finding - Fault interpretation

Condition for the application of the fault finding procedure to a stored fault. The fault is declared present following application of 2-second pressure on the brake pedal ten times.

Check the connector on the brake-pedal switch for proper mating and its general condition. Change the connector if necessary. Ensure correct adjustment of the brake-pedal switch (refer to repair methods). With the ignition on, check for presence of a voltage U = 12 volts on channel A1 and on channel B1 of the brake light switch. Connect the bornier in place of the computer and check the: insulation, continuity and absence of interference resistance of the connections: computer connector A track B3 track A3 of the brake light switch computer connector A track C3 track B3 of the brake light switch. Repair if necessary. Disconnect the pedal-sensor connector and check condition of contacts using an ohmmeter. Change The pedal sensor if it does not operate as specified below: Pedal in rest position continuity between tracks B1 and A3 insulation between tracks A1 and B3 Pressing the pedal insulation between tracks B1 and A3 continuity between tracks A1 and B3

If the incident persists, carry out fault finding procedure on the multiplex network (the information from sensor track A3 is fed to the injection computer via the multiplex network).

AFTER REPAIR

Clear the fault memory. Follow the instructions to confirm repair. Deal with any other possible faults.
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MOTORISED THROTTLE

DF137 PRESENT

CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT-CIRCUIT ON + 12 V 1.DEF : ABOVE MAXIMUM THRESHOLD

Special notes: The motorised throttle is located in the inlet manifold. NOTES Priority when dealing with a number of faults:: First deal with the "DF151 first sensor reference voltage" and "DF152 second sensor reference voltage" faults if they are present or stored.

Connect the bornier in place of the computer and check the resistance value of the throttle motor by measuring between: track L1 and track M1 of computer connector B. The throttle motor should have a resistance in the order of 2 1 at 25C. Ensure the two connections are insulated from earth and from +12 volts. If the measurement gives an incorrect value: remove the inlet manifold to gain access to the motorised throttle. Check the connection and condition of the motorised throttle connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer connector B track L1 track 3 of the motorised throttle computer connector B track M1 track 4 of the motorised throttle Repair if necessary. If the fault persists, change the motorised throttle.

AFTER REPAIR

Carry out reprogramming (see preliminary fault finding). Clear the fault memory. Deal with any other possible faults.
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MULTIPLEX NETWORK

DF145 PRESENT

NOTES

Special note: Once communication has been established, the diagnostic tool will automatically carry out a fault finding sequence on the multiplex network.

Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer connector A track J4 UCH computer connector A track H3 UCH (refer to diagrams for the vehicle and year of make in question). Repair if necessary. If the connections are correct, carry out the UCH fault finding procedure. If necessary, replace the UCH. If the fault persists, change the injection computer.

AFTER REPAIR

Clear the fault memory. Deal with any other possible faults.
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MIXTURE CONTROL
1.DEF : 2.DEF : 3.DEF : 4.DEF : SET TO MINIMUM STOP POSITION SET TO MAXIMUM STOP POSITION MIXTURE ADJUSTMENT IN UPPER STOP POSITION MIXTURE ADJUSTMENT IN LOWER STOP POSITION

DF146 PRESENT OR STORED

Priority for dealing with a combination of faults: First deal with the following faults if they are present or stored: DF084, DF085, DF086 and DF087 cylinders 1 to 4 injector commands and DF018, DF102, DF207, upstream oxygen sensor input signal and heater circuit.

NOTES

Conditions for applying the fault finding strategy to the fault stored: The fault is declared present after a test drive cycle or engine warm-up at idle speed which enables the mixture control phase of the two sensors to start: The "ET185 upstream sensor mixture loop status" should have the designation STATUS2: loop closed. The ET184 2nd mixture loop control status should have the designation STATUS2: loop closed. Make sure that the engine cooling fan cuts in at least twice.

Special notes: This fault only affects the D4D engine.

Carry out a full inspection of the fuel supply and injection system, by checking: Condition of the fuel filter Fuel flow rate and pressure. Cleanness of the tank. Condition and correct operation of the injectors. Conformity of the fuel. Whether any air is entering the fuel supply system. Check the condition and conformity of the intake and exhaust manifolds. Replace any faulty components.

AFTER REPAIR

Reset the self-adapting systems. Program the throttle stop and the air valve (see introduction). Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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FIRST SENSOR REFERENCE VOLTAGE

DF151 PRESENT

CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT CIRCUIT ON + 12 V

NOTES

None.

Check the connection and condition of the sensor connectors: pedal potentiometer and manifold pressure sensor. Change the connectors if necessary. With the ignition switched on, check that the 5 volt feed is in fact connected to the sensors on the following tracks: track 3 of the pedal potentiometer (potentiometer no.2) track C of the manifold pressure sensor. If the sensors are not receiving the 5 volt feed: Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector A track F1 track 3 of the pedal potentiometer computer connector B track B2 track C of the manifold pressure sensor. Repair if necessary. Clear the fault stored, disconnect all the sensors and reconnect them one by one to check which of these sensors is responsible for the fault. If no sensor is faulty and if the connections are correct, replace the injection computer.

AFTER REPAIR

Program the throttle stop and the throttle air valve (see introduction). Clear the fault memory. Deal with any other possible faults.

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SECOND SENSOR REFERENCE VOLTAGE

DF152 PRESENT

CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT CIRCUIT ON + 12 V

NOTES

None.

Check the connection and condition of the connectors of the following sensors: pedal potentiometer, throttle potentiometer, coolant pressure sensor, air temperature sensor and coolant temperature sensor. Change the connectors if necessary. With the ignition switched on, check that the 5 volt feed is in fact connected to the sensors on the following tracks: track 6 of the pedal potentiometer (potentiometer no.1) track 5 of the motorised throttle (feed to both potentiometers) track B of the coolant pressure sensor track 1 of the air temperature sensor track B1 of the coolant temperature sensor If the sensors are not receiving the 5 volt feed: Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer connector A track B1 track 6 of the pedal potentiometer computer connector B track C1 track 5 of the motorised throttle valve computer connector A track C1 track B of the coolant pressure sensor computer connector B track E4 track 1 of the air temperature sensor computer connector B track F1 track B1 of the coolant temperature sensor Repair if necessary. Clear the fault stored, disconnect all the sensors and reconnect them one by one to check which of these sensors is responsible for the fault. If no sensor is faulty and if the connections are correct, replace the injection computer.

AFTER REPAIR

Program the throttle stop and the throttle air valve (see introduction). Clear the fault memory. Deal with any other possible faults.

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BATTERY VOLTAGE
CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT-CIRCUIT ON + 12 V

DF157 PRESENT OR STORED

NOTES

Condition for the application of the fault finding procedure to a stored fault. The fault is declared present following a timed period of 50 seconds with the engine running at a speed greater than 900 rpm.

Make sure that the cable connecting the battery to the starter motor, the battery earth cable to the chassis and the chassis earth cable to the engine and transmission assembly (GMP) are in good condition. Make sure that the battery is in a good state of charge and, if necessary, check the charging circuit. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector A track L4 injection fuse: + battery feed (refer to diagrams for the vehicle and year of make in question). Repair if necessary.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.

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SPEED-CONTROL FUNCTION

DF158 PRESENT OR STORED

Priority for dealing with a combination of faults: First deal with the "DF135 brake pedal sensor circuit" and "DF247 cruise control or speed limiter button" faults if they are present or stored. NOTES Condition for the application of the fault finding procedure to a stored fault. The fault is declared present following operation of the cruise-control/speed limiter controls.

Using the status window of the diagnostic tool and the information given in status interpretation ET194, ensure that there is no fault or parameter impeding the operation of the cruise control. Apply the fault finding procedure on the basis of the parameter detected defective by the status interpretation ET194. For example, if the fault relates to the brake switch or the vehicle speed signal, apply the fault finding procedures for those parts. Using the status window of the diagnostic tool and the information given in status interpretation ET192, ensure that the actuation of the steering wheel and instrument panel buttons are sending the correct signals to the injection computer. If the data for status "ET192" are not to specification: Check the connection and condition of the connector of the steering wheel rotary switch and the condition of the connector of the cruise control (in the steering wheel). Replace the connector(s) if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector A track J2 track 1 of the connector to the steering-wheel controls (in the wheel) computer connector A track G2 track 2 of the connector to the steering-wheel controls (in the wheel) Repair if necessary.

AFTER REPAIR

Clear the fault memory. Follow the instructions to confirm repair. Deal with any other possible faults.
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DF158PRESENT

CONTINUED

Ensure the presence of a 5-volt supply by measuring between track 1 and track 2 of the connector to the steering-wheel controls (in the wheel). If the supply is not present, but the previous checks carried out are correct and the supply to the computer is correct, replace the injection computer. If the problem persists, check the connection and condition of the connector of the cruise control on the instrument panel; replace the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector A track F3 track A3 of the cruise-control ON/OFF switch. computer connector A track G4 track B1 of the cruise-control ON/OFF switch. Repair if necessary. Ensure the presence of a 12 volt after ignition supply on track A2 of the connector of the on/off control of the cruise control/speed limiter. Repair if necessary.

DETECTION OF ENGINE MISFIRES
1.DEF : NONCOMPLIANCE WITH EMISSION CONTROL STANDARDS 2.DEF : RISK OF CATALYTIC CONVERTER DAMAGE

DF165 PRESENT OR STORED

Priority for dealing with a combination of faults: First deal with the following faults if they are present or stored: DF061 ignition coils 1 & 4 circuit, DF084 to DF087 cylinders 1 to 4 injector commands, DF025 flywheel signal sensor circuit and DF018, DF038, DF102, DF207, DF208, input signal and heater circuit for both oxygen sensors. Condition for the application of the fault finding procedure to a stored fault. The fault is declared present after an OBD (on-board diagnostics) misfires test: If the programming of the phonic wheel has not been erased, the OBD (on-board diagnostics) misfires test is carried out automatically with the engine running at idle speed for one and a half minutes if the engine is cold or for 30 seconds if the engine is warm. Before the OBD (on-board diagnostics) misfires test can be run from the diagnostic tool, programming must be erased and then the test run (see preliminary fault finding). Special notes: Misfiring will be indicated by illumination of the OBD warning light, which indicates that the vehicle is running beyond the pollution standards. Flashing of the OBD warning light indicates the risk of destruction of the catalytic converter.

NOTES

Check the ignition system and the condition of the plugs and the radio interference suppresser. Repair if necessary. Check the compression ratio of the engine. Repair if necessary. Check the engine flywheel target (disc warped or cracked). Repair if necessary. Make sure there is no leakage at the inlet manifold and that the air filter is in good condition. Repair if necessary. If no anomaly is found, then there must be a problem with the fuel system. Therefore check: condition of the fuel filter fuel flow rate and pressure. cleanness of the tank. condition of the injectors. conformity of the fuel. Replace any faulty components.

AFTER REPAIR

Carry out reprogramming (see preliminary fault finding). Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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THROTTLE ANGLE SENSOR
CC.0 : SHORT-CIRCUIT TO EARTH CC.1 : SHORT-CIRCUIT ON + 12 V 1.DEF : VOLTAGE OUTSIDE PERMITTED RANGE

DF167 PRESENT OR STORED

Priority for dealing with a combination of faults: First deal with the "DF151 first sensor reference voltage" and "DF152 second sensor reference voltage" faults if they are present or stored.

NOTES

Condition for the application of the fault finding procedure to a stored fault. The fault is declared present when the ignition is switched on and the accelerator pedal depressed

Special notes: The motorised throttle is located in the inlet manifold.

DF207 PRESENT OR STORED

NOTES

Condition for the application of the fault finding procedure to a stored fault. Carry out a test drive. When the engine is warm, go into cutoff mode (no-load deceleration) for about 5 seconds. If necessary, repeat the operation three times successively.

Special notes: Make sure that the canister valve is not mechanically jammed (even if the diagnostic tool detects no canister valve fault).

Check the connection and condition of the upstream oxygen sensor connector. Change the connector if necessary. Verify the condition of the air intake circuit and the filter element. Ensure absence of air leaks on the exhaust system. If the vehicle is used frequently in towns, decoke the engine. With the ignition switched on, check the presence of +12 volts on track A of the upstream oxygen sensor. If there is no feed, check the insulation, continuity and absence of interference resistance of the connection: injection locking relay track 5 track A of the upstream oxygen sensor Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer connector B track E3 track C of the upstream oxygen sensor computer connector B track D1 track D of the upstream oxygen sensor Repair if necessary. If the fault persists, change the oxygen sensor (tighten to the correct torque). If the problem has still not been solved, deal with the other faults and then proceed to the conformity check. Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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DOWNSTREAM SENSOR INPUT SIGNAL
CC.1 : SHORT-CIRCUIT ON + 12 V 1.DEF : BELOW MINIMUM THRESHOLD 2.DEF : ABOVE MAXIMUM THRESHOLD

DF208 PRESENT OR STORED

Priority for dealing with a combination of faults: First deal with the following faults if they are present or stored: DF076 main relay, DF157 battery voltage, DF236 + after relay feed, DF111, DF112, DF113, DF114, DF165 detection of engine misfires and DF146 mixture control. NOTES Condition for the application of the fault finding procedure to a stored fault. Carry out a test drive. When the engine is warm, go into cutoff mode (no-load deceleration) for about 10 seconds. If necessary, repeat the operation three times successively.

Check the connection and condition of the downstream oxygen sensor connector. Change the connector if necessary. Verify the condition and conformity of the exhaust manifold and the filter element. Make sure that there are no air leaks into the exhaust system. If the vehicle is used frequently in towns, decoke the engine. With the ignition switch on, check the presence of +12 volts on track A of the downstream oxygen sensor. If there is no feed, check the insulation, continuity and absence of interference resistance of the connection: injection locking relay track 5 track A of the downstream oxygen sensor Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer connector A track H2 track C of the downstream oxygen sensor computer connector A track E1 track D of the downstream oxygen sensor Repair if necessary. If the fault persists, change the oxygen sensor (tighten to the correct torque). If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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THROTTLE BODY MOTOR CONTROL

DF216 PRESENT

1.DEF : INCONSISTENCY BETWEEN THROTTLE POSITION AND CONTROL

Priority for dealing with a combination of faults: First deal with the DF045 manifold pressure sensor and DF137 motorised throttle faults if they are present or stored. NOTES Special notes: The motorised throttle is located in the inlet manifold.

Connect the bornier in place of the computer and check the resistance value of the throttle motor by measuring between: track L1 and track M1 of computer connector B. The throttle motor should have a resistance in the order of 2 1 at 25C. If the measurement gives an incorrect value: remove the inlet manifold to gain access to the motorised throttle. Check the connection and condition of the motorised throttle connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer connector B track L1 track 3 of the motorised throttle computer connector B track M1 track 4 of the motorised throttle Repair if necessary. If the fault persists, change the motorised throttle. If replacement of the motorised throttle does not solve the problem, change the injection computer.

AFTER REPAIR

Carry out reprogramming (see preliminary fault finding). Clear the fault memory. Deal with any other possible faults.
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AIR COMPONENT

DF218 PRESENT OR STORED

1.DEF: INCONSISTENCY BETWEEN THE CALCULATED PRESSURE AND THE TRUE PRESSURE

Make sure that the manifold pressure parameter (PR001) in the parameters window relating to the fault is possible. Then check it in the current parameters window (to detect any drift in the pressure sensor signal). If necessary, replace the pressure sensor and compare the two signals. If the signal is correct, remove the inlet manifold and verify the correct operation and condition of the throttle body (contamination of the throttle valve, point of resistance, etc.). Check the conformity of the air intake circuit (clogging, air leaks, etc.). Repair if necessary. If the fault persists, change the manifold pressure sensor. If after replacing the pressure sensor the fault persists, change the motorised throttle.

AFTER REPAIR

Carry out reprogramming (see preliminary fault finding). Follow the instructions to confirm repair. Clear the fault memory. Deal with any other possible faults.
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THROTTLE STOP PROGRAMMING

DF226 PRESENT

CC.0 : SHORT-CIRCUIT TO EARTH 1.DEF : SIGNAL INCOHERENCE 2.DEF : DETECTION OF SIGNAL OUTSIDE UPPER OR LOWER LIMIT

NOTES

Priority for dealing with a combination of faults: First deal with the following faults if they are present or stored: DF125, DF126 pedal potentiometers track 1 and track 2, DF137 motorised throttle and DF167 throttle angle sensor.

Special notes: Programming of the motorised throttle can only be carried out above 6 C.

Make sure that the battery is correctly charged. If it is not, carry out fault finding on the charging circuit. Connect the bornier in place of the computer and check the values of the resistances, of the throttle motor and the throttle potentiometers by measuring between: Track L1 and track M1 of computer connector B for the throttle motor. The throttle motor should have a resistance in the order of 2 1 . And track C1 and track G1 of computer connector B for the potentiometers. The potentiometers should have a resistance in the order of 2500 500 . If the measurement gives an incorrect value: remove the inlet manifold to gain access to the motorised throttle. Check the connection and condition of the motorised throttle connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer connector B track L1 track 3 of the motorised throttle valve computer connector B track M1 track 4 of the motorised throttle valve computer connector B track G1 track 1 of the motorised throttle valve computer connector B track G3 track 2 of the motorised throttle valve computer connector B track C1 track 5 of the motorised throttle valve computer connector B track F4 track 6 of the motorised throttle valve Repair if necessary. If the fault persists, change the motorised throttle.

AFTER REPAIR

Program the throttle stop and the throttle air valve (see introduction). Clear the fault memory. Deal with any other possible faults.
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AIR CONDITIONING COMPRESSOR CONTROL
CC.0 : SHORT-CIRCUIT TO EARTH CC.0 : SHORT-CIRCUIT ON + 12 V

DF228 PRESENT OR STORED

NOTES

NOTES

None.

Check the condition of the clips of the injection locking relay (main relay) on the engine fuse and relay board. Replace the clips if necessary. Verify the presence of +12 volts before ignition on track 3 and track 1 of the main relay. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connection: computer connector A track L3 track 5 of the power-latch relay. Repair if necessary. Check the resistance value of the relay by measuring between: Track 1 and track 2 of the power-latch relay. Replace the relay if the resistance is not in the order of 84 1 .

NOTES

Only carry out this conformity check after a full check with the diagnostic tool (the values shown in this conformity check are only given as a guide). Conditions for the application of this check: engine stopped, ignition on.

Order

Function

Parameter or status Check or action ET001 + after ignition computer computer supply voltage engine immobiliser immobiliser code programmed

Display and notes ACTIVE 11 < x < 14 V INACTIVE YES

Fault finding In the event of a problem: perform the charge circuit fault finding procedure If active or if immobiliser code not programmed use the diagnostic procedure for the Engine immobiliser system. If there is a problem: perform the fault finding procedure for the coolant temperature sensor (DF004). If there is a problem:perform the fault finding procedure for the air temperature sensor (DF003). If there is a problem: perform the fault finding procedure for the manifold pressure sensor (DF045). For more information consult the fault finding procedure for status ET142.

Computer supply PR004 ET002

Immobiliser

ET099

PR002 3 Coolant temperature sensor PR143

coolant temperature coolant temperature sensor voltage. air temperature air temperature sensor voltage. manifold pressure atmospheric pressure

X = engine temperature 5 C 0<X<5V

PR003 4 Air temperature sensor PR144

X = temperature under bonnet 5 C 0<X<5V

PR001 5 Manifold pressure sensor PR016

= atmospheric pressure

Engine operation.

ET142

engine

STATUS1: ignition on and engine stopped.

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NOTES

Order

Function

Parameter or status Check or action ET003 ET005 throttle position no load throttle position valve - full load position. measured throttle position throttle track 2 voltage measured. throttle track 1 voltage measured. motorised throttle body

Display and notes ACTIVE INACTIVE

Fault finding

Throttle position potentiometer (in no load position).

PR017 PR165 PR166 ET109

0 < X < 20 d 4.08 V 0.3 V 0.96 V 0.3 V STATUS1: toe-out movement STATUS2: closure movement

If there is a problem: use the diagnostic procedure for the throttle angle sensor (DF167).

If there is a problem: use the fault finding procedure for the motorised throttle (DF137). If the status displays NO, re-program the motorised throttle (see preliminary diagnostics). None. If there is a problem: perform the fault finding procedure for the throttle angle sensor (DF167). If there is a problem: perform the fault finding procedure for the pedal potentiometer track 1 and track 2 circuits (DF125 and DF126).

ET111 8 Motorised throttle body PR113 PR118 PR119 PR112 Accelerator pedal position potentiometer PR150 PR151

programming choke-valve stops

YES

motorised throttle position setting motorised choke valve upper stop. motorised choke valve lower stop measured pedal position pedal angle 1 voltage measured pedal angle 2 voltage measured

0 < X < 20 d 0.78 V 0.16 V 0.39 V 0.1 V 17 < X < 83 d 0.5 < X < 4.5 V 0.2 < X < 2.5 V

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NOTES

Order

Function

Parameter or status Check or action ET192 speed-control function

Display and notes INACTIVE (STATUS 2 if the vehicle is not fitted with the speed control function, default value) INACTIVE (STATUS 6 if the vehicle is not fitted with the speed control function, default value) STATUS 1 (brake pedal not in use).

Fault finding For vehicles fitted with the speed control function, if the status is not inactive, refer to status interpretation ET192. For vehicles fitted with the speed control function, if the status is not inactive, refer to status interpretation ET194. If the status shows inactive, perform the fault finding procedure for the brake pedal sensor circuit (DF135). If the status shows STATUS 1, refer to status interpretation ET265

Cruise control / Speed limiter

ET194

deactivation of cruise-control / speed limiter.

ET143 11 Brake pedal

redundant brake pedal

Impact detected by the injection computer.

ET265

impact detected by the injection computer.

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NOTES

Only carry out this conformity check after a full check with the diagnostic tool (the values shown in this conformity check are only given as a guide). Conditions for performance: Engine warm at idle speed, no electrical consumers.

Order

Function

Parameter or status Check or action ET001 + after ignition computer computer supply voltage engine immobiliser immobiliser code programmed

Display and notes ACTIVE 11 < x < 14 V INACTIVE YES

Fault finding In the event of a problem: perform the charge circuit fault finding procedure. If active or if immobiliser code not programmed use the diagnostic procedure for the Engine immobiliser system. If there is a problem: perform the fault finding procedure for the coolant temperature sensor (DF004).

Computer supply

PR004 ET002 ET099

Immobiliser

PR002 3 Coolant temperature sensor PR143 PR003 4 Air temperature sensor PR144 PR0112 Accelerator pedal position potentiometer (no load). PR150 PR151

coolant temperature

X = engine temperature 5C(substitute value: 84C). 0<X<5V X = temperature under bonnet 5C(substitute value: 30C). 0<X<5V 5 < X < 30 d 0.298 < X < 0.800 V 0.298 < X < 0.425 V

coolant temperature sensor voltage. air temperature

air temperature sensor voltage. measured pedal position pedal angle 1 voltage measured pedal angle 2 voltage measured

If there is a problem: perform the fault finding procedure for the air temperature sensor (DF003). In the event of problems: run the diagnostic procedure for the "pedal potentiometer track 1 and 2 circuits" faults (DF125 and DF126).

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NOTES

Order

Function

Parameter or status Check or action ET003 : ET005 throttle position no load throttle position valve - full load position. measured throttle position throttle track 2 voltage measured. throttle track 1 voltage measured. motorised throttle body

Display and notes ACTIVE INACTIVE 0 < X < 20 d 3.5 < X < 5 V 0 < X < 1.5 V STATUS1: toe-out movement STATUS2: toe-out movement

Fault finding

Throttle position potentiometer

PR017 PR165 PR166 ET109

If there is a problem: perform the fault finding procedure for the throttle angle sensor (DF167).

If there is a problem: perform the fault finding procedure for the motorised throttle (DF137). If the status displays NO, re-program the motorised throttle (see fault finding introduction).

ET111

programming chokevalve stops

YES

Motorised throttle body

PR113 PR132 PR118 PR119

motorised throttle position setting motorised throttle RCO. motorised choke valve upper stop motorised choke valve lower stop manifold pressure atmospheric pressure

0 < X < 20 d None. 30 < X < 50% 0.78 V 0.16 V 0.39 V 0.1 V If there is a problem: perform the fault finding procedure for the throttle angle sensor (DF167). If there is a problem: perform the fault finding procedure for the manifold pressure sensor (DF045).

PR001 8 Manifold pressure sensor PR016

216 < X < 504 mb = local atmospheric pressure

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NOTES

Order

Function

Parameter or status Check or action ET009 ET076 air conditioning request air conditioning authorisation refrigerant fluid pressure

Display and notes ACTIVE if requested YES

Fault finding In the event of a problem, perform a fault finding test on fault: "DF228 compressor control". If there is a problem: apply the fault finding procedure for the refrigerant fluid pressure sensor (DF118).

Air conditioning

PR027

1 < X < 10 B.

PR030 PR031 10 Adaptive richness adjustment PR140 PR142 ET142

operating adaptive richness idle adaptive richness rapid mixture correction. average mixture correction. engine

- 25.5 < X < 22 % - 50.5 < X < 50 % - 33 < X < 50 % - 33 < X < 50 % STATUS3: engine at idle speed. For more information consult the fault finding procedure for status ET142. If there is a problem: consult the fault finding chart: idle speed problem (CHART 3). None. Since these parameters are directly managed by the injection computer, it is difficult for the After Sales network to interpret them.

PR006 PR041 11 Engine operation.

engine speed engine idling speed reference. fast idle speed idle speed regulation ignition advance. injection duration. coil charging time

750 50 rpm 750 50 rpm

ET038 ET039 PR051 PR050 PR036

INACTIVE ACTIVE -5 < X < 15 V. 2.16 < X < 5.88 ms. 1180 ms Since these parameters are directly managed by the injection computer, it is difficult for the After Sales network to interpret them.

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ENGINE

ET142

NOTES

These statuses give an indication of engine operation and can be used for the detection of faults when the conditions required for detection (whether stored or present) are special. For example: engine deceleration for a given timed period.

List of conditions associated with status ET142: STATUS1: ignition on and engine stopped.

STATUS2: engine being turned by starter motor.

STATUS3: engine at idle speed.

STATUS4: stable idle speed.

STATUS5: engine acceleration.

STATUS6: engine deceleration.

STATUS7: petrol injection cutoff request.

STATUS8: injection cutoff return.

AFTER REPAIR

Begin the conformity check again at the status concerned.

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Speed-control function

ET192

NOTES

Special notes: the conditions below appear on the fault finding tool screen by clicking on the blue icon showing ET192.

When the injection system shows fault DF158 cruise control function, DF159 speed limiter function and/or DF247 cruise control or speed limiter button, the status screen enables a fault finding to be carried out on the system by means of statuses ET192 and ET194.

Status ET192 enables you to check the correct operation of the buttons or the speed limiter.

When the vehicle is stationary with ignition on without actuation of the cruise control or speed limiter, status ET192 should be inactive (see checking conformity).

List of conditions associated with status ET192: STATUS 1: suspend button pressed. STATUS 2: repeat button pressed. STATUS 3: speed limiter ON/OFF switch pressed. STATUS 4: cruise control ON/OFF switch pressed. STATUS 5: increase switch on (set +). STATUS 6: increase switch on (set -).

If status ET194 is not inactive and shows one of these conditions a check must be made with the ohmmeter of the relevant button, which should be replaced if necessary. If status ET194 is inactive but fault DF158 cruise control function, DF159 speed limiter function and/or DF247 cruise control or speed limiter button is present, the correct operation of these buttons must be ensured using these technical specifications.

AFTER REPAIR

If necessary repeat the application of the fault finding procedure for fault DF158, DF159 and/or DF247 or carry out a road test to confirm the correct functioning of the system.
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Deactivation of cruise-control / speed limiter.

ET194

NOTES

Special notes: the conditions below appear on the fault finding tool screen by clicking on the blue icon showing 'ET194.

Status ET194 indicates the reasons why the cruise control or speed limiter function is interrupted.

When the vehicle is stationary with ignition on without actuation of the cruise control or speed limiter, status ET194 should be inactive (see checking conformity).

List of conditions associated with status ET194: These two conditions indicate a problem with the vehicle speed signal. This signal reaches the injection computer through the multiplex network. To resolve this problem it is necessary to perform a fault finding procedure on the multiplex network. This condition indicates that an injection fault is preventing the function from starting (defect mode). It is therefore necessary to perform the fault finding procedure associated with the fault showed by the diagnostic tool. Perform the fault finding procedure for fault DF158 cruise control function and/or DF159 speed limiter function.

STATUS 1: vehicle speed invalid.

STATUS 2: vehicle speed not refreshed.

STATUS 3: problem detected by the injection computer.

STATUS 4: Fault on cruise-control or speed limiter.

AFTER REPAIR

If necessary repeat the application of the fault finding procedure for fault DF158, DF159 and/or DF247 or carry out a road test to confirm the correct functioning of the system.
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ET194

CONTINUED 1

STATUS 5: brake pedal pressed.

Pressing the brake pedal cuts off the cruise control or speed limiter function. If the status remains active without pressing the brake pedal, perform the fault finding procedure for fault DF135 brake pedal sensor. This condition only affects vehicles fitted with the electronic stability program for engines with manual gearbox. This condition is only active in the case of vehicles fitted with automatic transmission. If this condition is present, perform the fault finding procedure for the automatic transmission. This condition indicates a poor conductor request. However an inconsistency in the vehicle speed signal may cause this condition to appear. In this case perform a fault finding procedure on the multiplex network, of the ABS and the instrument panel. Pressing the suspend button cuts off the cruise control or speed limiter function. If the status remains active without pressing the suspend button, perform the fault finding procedure for fault DF247 cruise control or speed limiter button.

STATUS 6: engine / gearbox decoupling.

STATUS 7: gear lever in neutral position.

STATUS 8: inconsistency between the request and the vehicle speed.

STATUS 9: press the suspend button.

AFTER REPAIR

If necessary repeat the application of the fault finding procedure for fault DF158, DF159 and/or DF247 or carry out a road test to confirm the correct functioning of the system.
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ET194

CONTINUED 2

STATUS 10: antiskid request.

This condition is only active in the case of vehicles fitted with the electronic stability program. An antiskid request cuts off the cruise control or speed limiter function. If this condition remains active perform a fault finding procedure on the ABS system.

AFTER REPAIR

If necessary repeat the application of the fault finding procedure for fault DF158, DF159 and/or DF247 or carry out a road test to confirm the correct functioning of the system.
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IMPACT DETECTED BY THE INJECTION COMPUTER

ET265

NOTES

Special notes: the conditions below appear on the fault finding tool screen by clicking on the blue icon showing ET265.

The airbag function is activated if an impact is detected by the airbag computer, which transmits the signal to the injection computer via the multiplex network, via the UCH. On receiving this signal, the computer locks the fuel pump relay and the injectors.

The unlocking of the relay will not be activated until the ignition has been off for 10 seconds.

This operation will cause the fault warning light to be come on for longer than usual when the ignition is switched on. The fault warning light will resume its normal operation after the fault has been cleared.

List of conditions associated with status ET265: NON: no impact has been detected by the injection computer. STATUS 1: an impact has been detected by the injection computer None To unlock the computer, switch the ignition off for 10 seconds, then clear the fault.

AFTER REPAIR

Check how long the fault warning light stays on when switching on the ignition and restart the vehicle to confirm the repair. Repeat the above procedure if necessary.
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NOTES

Only refer to this customer complaint after a complete check using the fault finding tool

NO COMMUNICATION WITH THE COMPUTER

CHART 1

STARTING PROBLEMS

CHART 2

IDLE SPEED FAULTS

CHART 3

PROBLEMS WHEN DRIVING

CHART 4

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CHART 1

NO COMMUNICATION WITH THE COMPUTER

NOTES

None.

Try the fault finding tool on another vehicle. Check: the connection between the fault finding tool and the diagnostic socket (lead in good condition), injection, engine and passenger compartment fuses. Verify the presence of +12 volts from the battery on track 16 and connection to earth on track 5 and track 4 of the diagnostic socket. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance of the connections: computer connector A track L3 track 5 of the injection locking relay computer connector A track L4 + battery (engine fuse box) computer connector A track M4 + after ignition (passenger compartment fuse box) computer connector A track M2 track 2 of the injection locking relay computer connector B track L2 earth computer connector B track L3 earth computer connector B track L4 earth computer connector A track H3 track 14 of the diagnostic socket computer connector A track J4 track 6 of the diagnostic socket computer connector A track K4 track 7 of the diagnostic socket Repair if necessary.

AFTER REPAIR

Check with the fault finding tool.

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CHART 2

STARTING PROBLEMS

NOTES

Only refer to this customer complaint after a check using the diagnostic tool

Ensure that the engine immobiliser is not active (the red warning light should be extinguished); if it is active, carry out the fault-finding procedure for the engine immobiliser system.

Ensure that the starter motor is turning correctly (approximately 250 rpm). If this is not the case: Check the condition of the battery, corrosion and tightness of the terminals. Make sure the engine earth strap is in good condition. Make sure that the battery lead to the starter motor is in good condition. Check the condition of the battery. Check that the starter motor is operating correctly.

Fuel supply check: Check that there is actually fuel in the tank (fuel gauge not defective) Check that the petrol is of the proper type. Check that no hoses are pinched (especially after a removal operation). Check the condition of the fuel filter; change it if necessary. Make sure that the fuel tank breather is not blocked. Make sure that the impact sensor is operating correctly. Make sure that the petrol pump is running correctly and that petrol is reaching the injector rail. Make sure that the fuel pressure regulator is in good condition by checking the pressure.

Air supply check: Check the condition of the intake ducts (no air leaks, pinching of the air intake pipe etc.). Make sure that the air filter is in good condition; change it if necessary. Disconnect the pipe which connects the canister drain solenoid valve to the inlet manifold and block the canister inlet from the manifold so that no air can enter. If there is no longer any disturbance, change the canister bleed solenoid valve.

AFTER REPAIR

Check with the fault finding tool.

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CHART 2

CONTINUED

Ignition check: Check the condition of the spark plugs; change them if necessary. Make sure that the spark plugs are correct for the engine type. Check the condition of the ignition wiring (wires hardened or cracked). Remove the engine speed sensor and make sure it has not been rubbing on its target (increase in the air gap). If it has, check the condition of the engine flywheel. Make sure that the ignition coils are in good condition.

Exhaust system check: Make sure that the exhaust system is in good condition. Remove the catalytic converter and look at the condition of the filter element inside (clogging). Shake the catalytic converter to see whether the filter element is broken (metallic noises)

Engine condition check: Make sure that the engine turns freely. Check the cylinder compressions. Check the timing.

AFTER REPAIR

Check with the fault finding tool.

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CHART 3

IDLE SPEED FAULTS

NOTES

Only refer to this customer complaint after a check using the diagnostic tool

Fuel supply check: Check that there is petrol present (the petrol gauge may be faulty). Check that the petrol is of the proper type. Check that no hoses are pinched (especially after a removal operation). Check the condition of the fuel filter; change it if necessary. Make sure that the fuel tank breather is not blocked. Make sure that the fuel pressure regulator is in good condition by checking the pressure.

Air supply check: Check the condition of the intake ducts (no air leaks, pinching of the air intake pipe etc.). Make sure that the air filter is in good condition; change it if necessary. Disconnect the pipe which connects the canister drain solenoid valve to the inlet manifold and block the canister inlet from the manifold so that no air can enter. If the problem is no worse, change the canister drain solenoid valve. Check that the brake servo is not leaking (air entering).

Engine condition check: Using the dipstick, check that the oil level is not too high. Check the cylinder compressions. Check the timing.

AFTER REPAIR

Check with the fault finding tool.

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CHART 4

PROBLEMS WHEN DRIVING

NOTES

Only refer to this customer complaint after a check using the diagnostic tool

Air supply check: Check the condition of the intake ducts (no air leaks, pinching of the air intake pipe etc.). Make sure that the air filter is in good condition and not deformed; change it if necessary. Disconnect the pipe which connects the canister drain solenoid valve to the inlet manifold and block the canister inlet from the manifold so that no air can enter. If the problem is no worse, change the canister drain solenoid valve. Check that the brake servo is not leaking (air entering). Remove the air feed line of the motorised choke valve and check that the valve is not clogged.

Ignition check: Check the condition of the spark plugs; change them if necessary. Make sure that the spark plugs are correct for the engine type. Check the condition of the ignition wiring (wires hardened or cracked). Make sure that the ignition coils are in good condition. Remove the engine speed sensor and make sure it has not been rubbing on its target (increase in the air gap). If it has, check the condition of the engine flywheel.

AFTER REPAIR

Check with the fault finding tool.

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CHART 4

CONTINUED

Engine condition check: Using the dipstick, check that the oil level is not too high. Check the cylinder compressions. Check the timing. Check the condition of the engine speed sensor target (engine flywheel). Make sure that the engine cooling system is operating correctly (so that the engine is operating under optimum conditions, neither too cold nor too hot).

Running gear check: Check that the wheels turn freely (calipers, drums or bearings not binding). Check the tyre pressures and tread condition (bulges).

AFTER REPAIR

Check with the fault finding tool.

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INJECTION 117 Fault finding - Introduction

This document introduces the generic fault finding procedure applicable to all computers of type "SIRIUS 34 Vdiag 04 and 08". ENGINES: K4J 710 / 711 / 714 / 715 K4M 708 / 709 / 730 / 744 / 745 / 770 F4R 736 / 742 /743 / 746 / 747 F4P 720. To undertake fault finding on this system, it is essential to have the following items available: The "Generic Fault Finding" Technical Note The wiring diagram for the function on the vehicle concerned. the tools listed under the heading Special tooling required.

GENERAL APPROACH TO FAULT FINDING: Use one of the fault finding tools to identify the system fitted on the vehicle (reading the computer series SIRIUS 34 Vdiag 04 and 08). Locate the Fault finding documents corresponding to the system identified. Take note of information contained in the introductory sections. Read the faults stored in the computer memory and use the Fault interpretation section of the documents. Reminder: Each fault is interpreted for a particular type of storage (fault present, fault stored, fault present or stored). The checks defined for handling each fault are therefore only to be performed if the fault shown by the fault finding tool is interpreted in the document for its type of storage. The storage type should be considered when using the fault finding tool after the ignition has been switched off and switched back on. If a fault is interpreted when it is stated to be "stored", the conditions for application of the diagnostic routine appear in the "NOTES" box. When these conditions are not satisfied, use the fault finding procedure to check the circuit of the faulty part since the fault is no longer present on the vehicle. Follow the same procedure when a fault is declared stored by the fault finding tool but is only interpreted in the documentation for a present fault. Carry out the conformity check (appearance of possible faults not yet identified by the system's auto-diagnostic procedure) and apply the relevant fault finding strategies according to the results. Confirm the repair (disappearance of the problem reported by the customer). Use the Customer complaints fault finding procedures if the fault persists.

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INJECTION Fault finding - Introduction

Essential special tooling for operations on the "SIRIUS 34 Vdiag 04 and 08" system: Diagnostic tools (except XR 25). Multimeter. Bornier: El. 1497.

Fault finding special features: The injection computer provides Fault type information (e.g. CO.0, 1.DEF,...) for the majority of faults present. This information is always limited to "DEF" when one of these faults is stated to be stored, even if the fault is present but the conditions for handling it are not present (cannot obtain a 1.DEF or a CO.0 for a stored fault). In this case, and if the fault is interpreted in the fault finding when it is only "stored", apply the conditions for confirmation of the actual presence of the fault, given in "NOTES" in the section "Conditions for application of the fault finding strategy to the stored fault". If the fault is present, apply this information to display the Fault type on the fault finding tool and thus the relevant fault finding procedure.

If the information obtained by the fault finding tool requires electrical continuities to be checked, connect bornier El. 1497.

IMPORTANT: * All tests using bornier El. 1497, must only be carried out with the battery disconnected. * The bornier is only designed to operate with a multimeter. Under no circumstances should 12 volts be applied to the test points.

REPROGRAMMING THE COMPUTERS: Reprogramming conditions: With the ignition on: Engine stopped Computer not protected Important recommendation following reprogramming: During the reprogramming of a computer, it does not transmit any information on the multiplex network (it is "mute"). Therefore all the computers connected to the multiplex network detecting the information generated by the injection computer will detect faults. It is therefore essential, after reprogramming the injection computer to clear the faults on all the computers in communication with the injection computer.

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INJECTION Fault finding - Introduction

Starting the vehicle after an impact: On receiving an impact detection signal emitted by the airbag computer on the multiplex network, the injection computer will do the following, having received the signal (after maximum 10 milliseconds): Stop the fuel pump supply, the ignition and the petrol or LPG injection. Status 264 "computer locked following impact" changes to STATUS 1. The only way of restarting is to switch off the ignition for 10 seconds. The only way of clearing status ET264 is to clear the faults stored.

Defect modes: In the case of failure of the motorised throttle, various defect modes are applied and are displayed by status "ET118" Motorised throttle in defect mode: NO: STATUS 1: NORMAL MODE MOTORISED THROTTLE IN LIMP-HOME MODE: This defect mode is indicated by a constant engine speed for every gear ratio, whatever the position of the accelerator pedal. It is associated with: "DF002" Throttle potentiometer circuit, "DF226" Throttle stop programming, "DF254" Motorised throttle request or "DF255" Security of operation of throttle/pedal. INJECTION CUT-OFF: This defect mode is not used on the SIRIUS 34 injection computer. PEDAL FAULT (loss of driver control): This defect mode is indicated by: no effect of pedal, fast idling and if the brake pedal is pressed the engine speed changes to idle speed. It is associated with: "DF125" Pedal potentiometer circuit track 1+ "DF129" Pedal potentiometer circuit or "DF125" Pedal potentiometer circuit track 1+ "DF126" Pedal potentiometer circuit track 2 REDUCTION OF ENGINE PERFORMANCE (limitation of performance): This defect mode is indicated by: Limitation of the vehicle speed, limitation of the command section of the throttle, limitation of the vehicle acceleration (slow increase in the command section of the throttle). It is associated with: "DF002" Throttle potentiometer circuit, "DF125" Pedal potentiometer circuit track 1, "DF126" Pedal potentiometer circuit track 2, "DF129" Pedal potentiometer circuit or "DF258" First sensor reference voltage.

STATUS 2: STATUS 3:

STATUS 4:

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INJECTION Fault finding - Introduction

THROTTLE POTENTIOMETER CIRCUIT
1.DEF : throttle position potentiometer circuit track 1 2.DEF : throttle position potentiometer circuit track 2 3.DEF : inconsistency between throttle track 1 and track 2

DF002 PRESENT OR STORED

Processing priority in event of stacked faults: Second sensor reference voltage fault DF 152 should be dealt with first. NOTES Conditions for applying the diagnostic to stored faults.: If the fault becomes present with 1.DEF, 2.DEF or 3.DEF, carry out this fault finding strategy.

1.DEF

2.DEF

AFTER REPAIR

Vary the engine speed to confirm repair. Deal with any other possible faults. Clear the fault memory.
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INJECTION Fault finding - Fault interpretation

CONTINUED

DF002 PRESENT OR STORED

NOTES

Conditions for applying the diagnostic to stored faults.: If the fault becomes present with 1.DEF, 2.DEF or 3.DEF, carry out this fault finding strategy.

3.DEF

Check the connection and condition of the throttle potentiometer connector. Change the connector if necessary. Connect the bornier in place of the computer and check the resistance of throttle potentiometer tracks 1 and 2. Operate the throttle, moving from no load to full load, to ensure that the potentiometer resistance is developing in a linear fashion. Track 1 tracks: Computer track 17 Computer track 17 and Track 2 tracks: Computer track 13 Computer track 13 Track 7 Computer Track 82 Computer Track 7 Computer Track 82 Computer

Replace the throttle potentiometer if necessary. If the fault persists, replace the throttle potentiometer.

AFTER REPAIR

Vary the engine speed to confirm repair. Deal with any other possible faults. Clear the fault memory.
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INJECTION Fault finding - Fault interpretation

AIR TEMPERATURE SENSOR CIRCUIT

DF003 PRESENT OR STORED

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on. NOTES Special notes: The parameter (PR003 air temperature) gives the value read by the injection computer.

Check the connection and condition of the air temperature sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 84 track 1 Air temperature sensor Computer track 18 track 2 Air temperature sensor Repair if necessary. Check that the resistance of the air temperature sensor is not zero or equal to infinity (unequivocal failure of the sensor). Check the sensor resistance at various temperatures. Change the air temperature sensor if necessary.

Temperature -10C 25C 50C 80C

Resistance +/- 20% 9.5 Kohms 2 Kohms 810 Ohms 309 Ohms

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
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INJECTION Fault finding - Fault interpretation

COOLANT TEMPERATURE SENSOR CIRCUIT

DF004 PRESENT OR STORED

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on. NOTES Special notes: The parameter (PR 002 coolant temperature) gives the value read by the injection computer.

Processing priority in event of stacked faults: Coolant temperature sensor circuit fault DF004 and actuator relay circuit fault DF009 should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present after switching on the ignition or entering command AC626 low speed fan assembly relay.

Special notes: Status ET 035 low speed fan assembly can help with the treatment of this fault.

Check the connection and the condition of the connector to the low-speed fan relay. Change the connector if necessary. Disconnect the relay. With the ignition on, check for the presence of + 12 volts on track 1 of the low speed fan assembly relay. Repair if necessary. Check the insulation and continuity of the connection between: Injection computer track 11 track 2 Low speed fan assembly relay Repair if necessary. Check the resistance of the low speed fan assembly relay coil. Replace the low speed fan assembly relay if necessary.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
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INJECTION Fault finding - Fault interpretation

FAULT WARNING LIGHT CIRCUIT
CO : open circuit CC.0 : short circuit to earth CC.1 : short circuit to 12 volts

DF011 PRESENT OR STORED

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition is switched on or the AC 211 command is run. Fault warning light

Special notes: Status ET 006 fault warning light can help with the treatment of this fault.

VDIAG 04

With the ignition on, check that 12 volts is reaching the warning light. Repair the line if necessary. Connect the bornier in place of the computer; check the insulation, continuity and absence of interference resistance on the connection between: Computer track 70 Fault warning light on instrument panel Repair if necessary. Check the condition of the warning light (if it is not lit). Change it if necessary.

VDIAG 08

Switch on the ignition. Test the multiplex network.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
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INJECTION Fault finding - Fault interpretation

INJECTION CONNECTION AC

DF012 PRESENT OR STORED

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on. NOTES Special notes: Status ET016 injection-AC connection can help with the treatment of this fault.

Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Computer track 81 air conditioning control unit Repair if necessary.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
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INJECTION Fault finding - Fault interpretation

CANISTER BLEED SOLENOID VALVE CIRCUIT
CO : open circuit CC.0 : short circuit to earth CC.1 : short circuit to 12 volts

DF014 PRESENT OR STORED

Processing priority in event of stacked faults: Actuator relay circuit fault DF 009 should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present after switching on the ignition or entering command AC016 Canister bleed solenoid valve.

Special notes: Status ET032 canister bleed solenoid valve can help with the treatment of this fault.

Check the connection and condition of the canister bleed solenoid valve connector. Change the connector if necessary. With the ignition on, check for the presence of 12 volts on the canister bleed solenoid valve. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Injection computer track 8 Canister bleed solenoid valve Repair if necessary. Check the resistance of the canister bleed solenoid valve. Change the solenoid valve if the resistance is not approximately 26 Ohms 4 at 23C.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
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UPSTREAM OXYGEN SENSOR HEATER CIRCUIT
CO : open circuit CC.0 : short circuit to earth CC.1 : short circuit to 12 volts

DF018 PRESENT OR STORED

Processing priority in event of stacked faults: Actuator relay circuit fault DF 009should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present with the engine running or the AC 261 command is run. Upstream sensor heating

Special notes: Status ET 030 upstream sensor heating can help with the treatment of this fault.

Check the connection and condition of the oxygen sensor connector. Change the connector if necessary. With the ignition on, check for the presence of 12 volts on the oxygen sensor. Rectify the electrical line to the actuator relay. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Computer track 65 Oxygen sensor Repair if necessary. Check the resistance of the upstream oxygen sensor heating circuit. Change the oxygen sensor if the resistance is not approximately 3.4 Ohms at 20C.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory.
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COMPUTER

DF022 PRESENT

1.DEF : Computer defective or incorrect

NOTES

None.

Check that the computer is the correct one for the vehicle. Reprogram the computer. Then program the throttle valve stops: Switch on the ignition and wait at least 5 seconds without starting the engine: the throttle valve stops are programmed automatically. If the programming is not carried out, it is possible to start the engine, but driving the vehicle is forbidden as there is a high risk of stalling and/or unstable engine speeds. REPROGRAMMING THE COMPUTERS: Reprogramming conditions: Ignition on. Engine stopped Computer not protected Important recommendation following reprogramming: During the reprogramming of a computer, it does not transmit any information on the multiplex network (it is "mute"). Therefore all the computers connected to the multiplex network detecting the information generated by the injection computer will detect faults. It is therefore essential, after reprogramming the injection computer to clear the faults on all the computers in communication with the injection computer. If the fault is still present, replace the computer.

AFTER REPAIR

Clear the computer memory. Perform a road test then a new test with the fault finding tool.
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INJECTION Fault finding - Fault interpretation

VEHICLE SPEED SENSOR CIRCUIT

DF024 PRESENT OR STORED

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the engine has been running at > 10 mph (15 km/h) for more than 30 seconds. NOTES

Special notes: Two types of connection are used: wire frame connections and multiplex connections. Consult configuration reading LC 038 to check which type is in use. Status ET 069 sensor connection and parameter PR018 vehicle speed) can help with the treatment of this fault.

Wire connection

Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Computer track 53 ABS computer Repair if necessary.

CAN connection

Switch on the ignition. Test the multiplex network.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory.
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INJECTION Fault finding - Fault interpretation

FLYWHEEL SIGNAL SENSOR CIRCUIT

DF025 PRESENT OR STORED

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the engine has been started or running for at least 10 seconds. NOTES Special notes: Parameter PR006 engine speed can help with the treatment of this fault.

Check the connection and condition of the engine speed sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 54 Track A engine speed sensor Computer track 24 Track B engine speed sensor Repair if necessary. Check the resistance of the engine speed sensor. Change the engine speed sensor if the resistance is not between 200 and 270 Ohms.

VDIAG 08

Switch on the ignition. Test the multiplex network.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
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DOWNSTREAM OXYGEN SENSOR HEATER CIRCUIT
CO : open circuit CC.0 : short circuit to earth CC.1 : short circuit to 12 volts

DF038 PRESENT OR STORED

Processing priority in event of stacked faults: Actuator relay circuit fault DF 009 should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition is switched on or the AC 262 command is run. Downstream oxygen sensor heater

Special notes: Status ET031 Downstream sensor heating can help with the treatment of this fault.

Check the connection and condition of the oxygen sensor connector. Change the connector if necessary. With the ignition on, check for the presence of 12 volts on the oxygen sensor. Repair the electrical line to the actuator relay. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Computer track 68 Oxygen sensor Repair if necessary. Check the resistance of the upstream oxygen sensor heating circuit. Change the sensor if the resistance is not approximately 3.4 Ohms at 20C.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

IMMOBILISER CIRCUIT

DF044 PRESENT OR STORED

Processing priority in event of stacked faults: Actuator relay circuit fault DF 009 should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present following: absence or delay of the encoded signal > 2 seconds.

Special notes: Two types of connection are used: wire frame connections and multiplex connections. Statuses ET002 Engine immobiliser and ET099 Immobiliser code programmed can help with the treatment of this fault.

Wire connection

Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Computer track 58 engine immobiliser Repair if necessary.

CAN connection

Switch on the ignition. Test the multiplex network.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

MANIFOLD PRESSURE SENSOR CIRCUIT

DF045 PRESENT OR STORED

DEF : pressure sensor fault 1.DEF : inconsistency between the calculated pressure and the true pressure.

Processing priority in event of stacked faults: First sensor reference voltage fault DF 258 should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the engine has been running.

Special notes: Parameter PR016 atmospheric pressure can help with the treatment of this fault.

Check the connection and condition of the pressure sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 15 pressure sensor Computer track 78 pressure sensor Computer track 16 pressure sensor Repair if necessary. With the engine running, the computer runs a test to check the consistency between the measured manifold pressure and the pressure calculated from the throttle position and the engine speed. If the fault persists, change the pressure sensor.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

17-230

SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

CYLINDER INJECTOR CIRCUIT 1
CO : open circuit CC.0 : short circuit to earth CC.1 : short circuit to 12 volts

DF052 PRESENT OR STORED

DF057 PRESENT OR STORED

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present following: richness regulation loop closed 1: Status (ET037: ACTIVE). The fault is only stored if the computer has taken into account the richness correction value invested during the present fault: parameter PR035 fixed at 128.

Special notes: Two fittings are possible: three-wire sensor and single-wire sensor.

Three-wire sensor

Check the connection and condition of the oxygen sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 80 Oxygen sensor Computer track 45 Oxygen sensor Repair if necessary. If the incident persists, replace the oxygen sensor.

Single-wire sensor

Check the connection and condition of the oxygen sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Computer track 45 Oxygen sensor Repair if necessary. If the incident persists, replace the oxygen sensor.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

DOWNSTREAM OXYGEN SENSOR CIRCUIT

DF056 PRESENT OR STORED

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present following: double loop active.

Check the connection and condition of the oxygen sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 76 Oxygen sensor Computer track 44 Oxygen sensor Repair if necessary. If the incident persists, replace the oxygen sensor.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

17-236

SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

IGNITION COIL 1 - 4 CIRCUIT
CO : open circuit CC.0 : short circuit to earth CC.1 : short circuit to 12 volts

DF061 PRESENT OR STORED

Processing priority in event of stacked faults: fuel pump control relay circuit fault DF 008 should be dealt with first. NOTES Conditions for applying the diagnostic to stored faults.: The fault is declared present with the engine running. If the fault becomes present with CO, CC.0 or CC.1, carry out this fault finding strategy.

Check the connection and condition of the coil 1 and 4 connectors. Replace the connector(s) if necessary. With the ignition on, check for the presence of +12 volts on track 1 of the coil 1 connector.. Check the insulation, the continuity and absence of interference resistance on the connection between: coil 1 track 2 Track 1 coil 4 Repair if necessary. Check the insulation, continuity and absence of interference resistance on the connections between: injection computer track 32 Track 2 coil 4 fuel pump relay track 5 Track 1 coil 1 Repair if necessary. Check the resistance of coils 1 and 4. Change the coil(s) if their primary circuit resistance is not approximately 0.5 Ohms and their secondary circuit resistance is not approximately 10.7 Kohms.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

17-237

SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

IGNITION COIL 2-3 CIRCUIT
CO : open circuit CC.0 : short circuit to earth CC.1 : short circuit to 12 volts

DF062 PRESENT OR STORED

Check the connection and condition of the coil 2 and 3 connectors. Replace the connector(s) if necessary. With the ignition on, check for the presence of +12 volts on track 1 of the coil 2 connector. Check the insulation, the continuity and absence of interference resistance on the connection between: coil 2 track 2 Track 1 coil 3 Repair if necessary. Check the insulation, continuity and absence of interference resistance on the connections between: injection computer track 1 Track 2 coil 3 fuel pump relay track 5 Track 1 coil 2 Repair if necessary. Check the resistance of coils 2 and 3. Change the coil(s) if their primary circuit resistance is not approximately 0.5 Ohms and their secondary circuit resistance is not approximately 10.7 Kohms.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

CAMSHAFT SHIFTER
CO : open circuit CC.0 : short circuit to earth CC.1 : short circuit to 12 volts

DF063 PRESENT OR STORED

Processing priority in event of stacked faults: Actuator relay circuit fault DF 009should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present with the engine running according to certain special conditions (coolant temperature, pressure, speed) or when actuator command AC491 camshaft shifter is entered. If the fault becomes present with CO, CC.0 or CC.1, carry out this fault finding strategy.

Special notes: Status ET026 camshaft shifter) can help with the treatment of this fault.

Check the connection and condition of the camshaft shifter solenoid valve connector. Change the connector if necessary. With the ignition on, check for the presence of 12 volts on the camshaft shifter solenoid valve. Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Computer track 37 camshaft shifter solenoid valve Repair if necessary. Check the resistance of the camshaft shifter solenoid valve. Change the solenoid valve if the resistance is not approximately 7.2 Ohms at 20C.

AFTER REPAIR

Follow the instructions to confirm repair. Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

CONNECTION BETWEEN PETROL LPG

DF082 PRESENT OR STORED

NOTES

NOTES

ET093 Misfire on cylinder 1 ET094 Misfire on cylinder 2 ET095 Misfire on cylinder 3 ET096 Misfire on cylinder 4 Give information on the nature and location of the fault.

One cylinder is declared faulty ET093 or ET094 or ET095 or ET096

This means that the problem is probably due to a component which can only act on this cylinder: Problem on the injector. Problem on the spark plug. Problem on the coil. Engine compression problem.

Cylinders 1 and 4 or cylinders 2 and 3 declared faulty ET093 and ET096 or ET094 and ET095

This means that the problem is probably due to a component which can only act on this pair of cylinders: Problem on the coil on the high voltage side. Problem on the coil on the control side. Engine compression problem.

Four cylinders declared faulty ET093 and ET094 and ET095 and ET096

This means that the problem is probably due to a component which can only act on all the cylinders: Petrol filter problem. fuel pump problem. Petrol type problem... Engine compression problem.

AFTER REPAIR

Ensure that all the faults have been dealt with. Erase the stored faults. It is not necessary to erase the programming. Checking the correct state of repair of the system entails: There should be no further electrical faults. The engine should be warm. Establish idling speed with all electrical users engaged for 15 minutes. If the fault resurfaces, continue the fault finding procedure.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

DESTRUCTIVE MISFIRE
OBD : OBD fault (On Board Diagnostic) 1.OBD: OBD fault present 2.OBD: OBD fault detected whilst driving

DF110 PRESENT OR STORED

NOTES

ET093 Misfire on cylinder 1 ET094 Misfire on cylinder 2 ET095 Misfire on cylinder 3 ET096 Misfire on cylinder 4 Give information on the nature and location of the fault.

One cylinder is declared faulty ET093 or ET094 or ET095 or ET096

This means that the problem is probably due to a component which can only act on this cylinder: Problem on the injector. Problem on the spark plug. Problem on the coil.

Cylinders 1 and 4 or cylinders 2 and 3 declared faulty ET093 and ET096 or ET095 and ET095

This means that the problem is probably due to a component which can only act on this pair of cylinders: Problem on the coil on the high voltage side. Problem on the coil on the control side.

Four cylinders declared faulty ET093 and ET094 and ET095 and ET096

This means that the problem is probably due to a component which can only act on all the cylinders: Petrol filter problem. fuel pump problem. Petrol type problem...

AFTER REPAIR

Ensure that all the faults have been dealt with. Erase the stored faults. It is not necessary to erase the programming. Checking the correct state of repair of the system entails: There should be no further electrical faults. The engine should be warm. Establish idling speed with all electrical users engaged for 15 minutes. If the fault resurfaces, continue the fault finding procedure.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

COOLANT PRESSURE SENSOR CIRCUIT

DF118 PRESENT OR STORED

Processing priority in event of stacked faults: First sensor reference voltage fault DF 258 should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on.

Special notes: Parameter PR027 coolant pressure can help with the treatment of this fault.

Check the connection and condition of the air conditioning sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Injection computer track 79 Coolant pressure sensor Injection computer track 83 Coolant pressure sensor Injection computer track 47 Coolant pressure sensor Repair if necessary. Check the resistance of the air conditioning pressure sensor. Replace the sensor if necessary.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

PEDAL POTENTIOMETER TRACK 1 CIRCUIT

DF125 PRESENT OR STORED

Processing priority in event of stacked faults: Second sensor reference voltage fault DF 152 should be dealt with first. NOTES Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

PEDAL POTENTIOMETER TRACK 2 CIRCUIT

DF126 PRESENT OR STORED

Processing priority in event of stacked faults: First sensor reference voltage fault DF 258 should be dealt with first. NOTES Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on.

Check the connection and condition of the pedal potentiometer connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 43 Pedal potentiometer circuit track 2 Computer track 71 Pedal potentiometer circuit track 2 Computer track 87 Pedal potentiometer circuit track 2 Repair if necessary. Check the resistance of pedal position potentiometer track 2 (the resistance is zero or equal to infinity in the event of a straight failure). Check the resistance of the potentiometer in various positions. Change the pedal potentiometer if necessary.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

17-247

SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

PEDAL-POTENTIOMETER CIRCUIT

DF129 PRESENT

SECOND SENSOR REFERENCE VOLTAGE

DF0152 PRESENT OR STORED

1.DEF : supply fault to tracks 1 and 2 on the throttle potentiometer and to track 1 on the pedal potentiometer

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on. If the fault becomes present with 1.DEF, carry out this fault finding strategy.

1.DEF

This fault indicates an internal computer fault; replace the computer.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

CONNECTION BETWEEN AUTOMATIC TRANSMISSION AND INJECTION

DF170 PRESENT OR STORED

Processing priority in event of stacked faults: The fault on the air temperature sensor circuit - DF003 - should to be processed first. NOTES Conditions for applying the diagnostic to stored faults.: The fault is declared present after the engine has been running at idle speed for > 3 seconds.

Switch on the ignition. Test the multiplex network.

Check the insulation, the continuity and absence of interference resistance on the connection between: coil 1 track 2 Track 1 coil 4 Repair if necessary. Check the connection and condition of the air conditioning compressor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Injection computer track 39 Air conditioning compressor Repair if necessary. If the problem has still not been solved, deal with the other faults and then proceed to the conformity check.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

cruise control /speed limiter

DF235 PRESENT OR STORED

1.DEF : 2.DEF : 3.DEF : 4.DEF : 5.DEF :

Fault on one brake pedal contact Fault on both brake pedal contacts Controls at the steering wheel on/off switch electronic stability program

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present following a road test using the cruise control and the speed limiter functions.

1.DEF 2.DEF

Check the connection and condition of the brake pedal switch connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 53 Brake-pedal contact Computer track 52 Brake-pedal contact Repair if necessary. If the fault persists, replace the brake pedal switch.

3.DEF

Check the connection and condition of the cruise control/speed limiter switches on the steering wheel controls. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Injection computer track 58 Steering wheel switch Injection computer track 77 Steering wheel switch Repair if necessary. Check the reliability of the steering wheel controls. Replace the switch(es) if necessary.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
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INJECTION Fault finding - Fault interpretation

CONTINUED

DF235 PRESENT OR STORED

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present following a road test using the cruise control and the speed limiter functions.

4.DEF

Check the connection and condition of the cruise control/speed limiter switches on the steering wheel controls. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Injection computer track 23 Cruise-control/speed limiter ON/OFF switch Injection computer track 49 Cruise-control/speed limiter ON/OFF switch Repair if necessary. Check the correct operation of the cruise control/speed limiter ON/OFF switch. Replace the switch if necessary.

5.DEF

With the engine running and engine speed > at 800 rpm: Test the multiplex network (for vehicles fitted with this option).

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

+ AFTER RELAY FEED

DF236 PRESENT OR STORED

Processing priority in event of stacked faults: Actuator relay circuit fault DF009 should be dealt with first. NOTES Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on.

Check the condition of the battery and the vehicle earths. Repair if necessary. Check the connection and condition of the actuator relay connector. Change the connector if necessary. Disconnect the relay and check for the presence of 12 volts on track 3 of the relay-holder. Repair if necessary. Check the insulation, the continuity and absence of interference resistance on the connection between: Injection computer track 66 Actuator relay track 5 Repair the line if necessary. Connect the relay and, with the ignition on, check for the presence of 12 volts on track 5 of the actuator relay holder. Change the relay if necessary.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

+ AFTER IGNITION SUPPLY

DF251 STORED

NOTES

Conditions for applying the diagnostic to stored faults.: This fault can only be declared stored, because communication is lost with the fault finding tool if it is present.

Check the condition of the battery and the vehicle earths. Repair if necessary. Check the insulation between: Injection computer track 29 Repair the line if necessary.

vehicle earth

With the ignition on: Check for the presence of 12 volts on track 29 of the injection computer. Repair the line if necessary.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

ENGINE EARTH

DF253 PRESENT OR STORED

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on.

In the event of the single-wire upstream sensor being "without earth return", track 44 is used to receive the engine earth signal. If this occurs, the computer cannot control the downstream sensor. Connect the bornier in place of the computer; check the insulation, continuity and absence of interference resistance on the connection between: Computer track 44 Vehicle earth Repair if necessary.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

17-261

SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

MOTORISED THROTTLE BODY CONTROL
1.DEF : internal fault on the throttle body unit or the computer: faulty microprocessor

DF254 PRESENT OR STORED

Processing priority in event of stacked faults: Actuator relay circuit fault DF009 and fault DF236 should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: The fault is declared present after the ignition has been switched on.

Special notes: It is possible to start the engine when this fault is present, but driving the vehicle is forbidden as engine speed is constant irrespective of the accelerator pedal position.

Check the connection and condition of the throttle body unit connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 61 Throttle potentiometer Computer track 62 Throttle potentiometer Repair if necessary. If the fault persists, replace the motorised throttle body unit. Then program the throttle valve stops: Switch on the ignition and wait at least 5 seconds without starting the engine: the throttle valve stops are programmed automatically. If the programming is not carried out, it is possible to start the engine, but driving the vehicle is forbidden as there is a high risk of stalling and/or unstable engine speeds.

1.DEF

This fault indicates an internal computer fault; replace the computer.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

RELIABILITY OF THROTTLE/PEDAL FUNCTIONING

DF255 PRESENT OR STORED

1.DEF : Coherence between the position of the pedal and the position of the throttle

Processing priority in event of stacked faults: Second sensor reference voltage fault DF 152 should be dealt with first.

NOTES

Conditions for applying the diagnostic to stored faults.: For this fault to be present it is necessary to have selected the highest ratio and carried out two clear "acceleration/deceleration" sequences. But this test is not carried out when: There is a coupling request originating from the automatic transmission or the ESP (electronic stability program). The power limitation strategy is active. A fault is detected on the motorised throttle system (DF002, DF226, DF254). The cruise control or speed limiter is active.

Special notes: The only way of clearing the fault stored is to use the "reinitialisation of the programming" service.

Check the connection and condition of the pedal potentiometer connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 14 Pedal potentiometer Computer track 6 Pedal potentiometer Computer track 75 Pedal potentiometer Computer track 43 Pedal potentiometer Computer track 71 Pedal potentiometer Computer track 87 Pedal potentiometer Repair if necessary. Check the resistance of pedal potentiometer track 1 and track 2 (the resistance is zero or equal to infinity in the event of a straight failure). Check the resistance of the potentiometer in various positions. Change the pedal potentiometer if necessary.

AFTER REPAIR

Apply the reference value to confirm that the repair is successful. Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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INJECTION Fault finding - Fault interpretation

CONTINUED

DF255 PRESENT OR STORED

Check the connection and condition of the throttle potentiometer connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Computer track 7 Track 5 Throttle potentiometer Computer track 82 Track 1 Throttle potentiometer Computer track 13 Track 6 Throttle potentiometer Computer track 17 Track 2 Throttle potentiometer Repair if necessary. Check the resistance of throttle potentiometer track 2 (the resistance is zero or equal to infinity in the event of a straight failure). Change the throttle potentiometer if the resistance is not approximately 1Kohms +/- 25%. If the problem is still not resolved, the computer needs to be reprogrammed. Then program the throttle valve stops: Switch on the ignition and wait at least 5 seconds without starting the engine: the throttle valve stops are programmed automatically. If the programming is not carried out, it is possible to start the engine, but driving the vehicle is forbidden as there is a high risk of stalling and/or unstable engine speeds. REPROGRAMMING THE COMPUTERS: Reprogramming conditions: Ignition on. Engine stopped Computer not protected Important recommendation following reprogramming: During the reprogramming of a computer, it does not transmit any information on the multiplex network (it is "mute"). Therefore all the computers connected to the multiplex network detecting the information generated by the injection computer will detect faults. It is therefore essential, after reprogramming the injection computer to clear the faults on all the computers in communication with the injection computer.

AFTER REPAIR

Apply the reference value to confirm that the repair is successful. Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

17-264

SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

FIRST SENSOR REFERENCE VOLTAGE

DF258 PRESENT OR STORED

1.DEF : supply fault on the manifold pressure, pedal track 2 and Freon pressure sensors

NOTES

1.DEF

This fault indicates an internal computer fault; replace the computer.

AFTER REPAIR

Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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SIRIUS 34 PROGRAM No.: E5 Vdiag No.: 04 and 08

INJECTION Fault finding - Fault interpretation

BI-MODE INTAKE SOLENOID VALVE
CO : open circuit CC.0 : short circuit to earth CC.1 : short circuit to 12 volts

DF308 PRESENT OR STORED

Processing priority in event of stacked faults: Actuator relay circuit fault DF009 should be dealt with first.

Conditions for applying the diagnostic to stored faults.: The fault is declared present when the ignition is switched on and the battery voltage exceeds 10 volts. If the fault becomes present with CO, CC.0 or CC.1, carry out this fault finding strategy. NOTES Special notes: Disregard this fault only on engine F4R 736 (Renault Sport). The command is active if the vehicle is in 2 nd gear at a speed < 4800 rpm or in the 3rd gear at a speed < 3260 rpm, if the vehicle speed is less than 120 Km/h, and if no fault is detected on the vehicle speed. If the fault is present with CC.1 (short circuit to 12 volts) it is not detected unless the bi-mode stop valve is activated (valve closed). If the fault is present with CC.0 and C.0 (short circuit to earth and open circuit) it is detected even if the bi-mode stop valve is not activated (valve open).

Check the connection and condition of the bi-mode stop valve connector. Change the connector if necessary. With the ignition on, check for the presence of +12 volts on track 2 of the bi-mode stop valve connector. Check the insulation, the continuity and absence of interference resistance on the connection between: Injection computer track 63 Track 1 bi-mode stop valve Repair if necessary. Check the electrical resistance of the bi-mode stop valve. If the resistance is not about 45 ohms, replace the bi-mode stop valve.

AFTER REPAIR

Apply the reference value to confirm that the repair is successful. Deal with any other possible faults. Clear the fault memory.
SIRIUS 34 E5 V04-08 2.0

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INJECTION Fault finding - Conformity check

NOTES

The values indicated in this conformity check are given for reference purposes only. It is therefore vital to consult the Technical Note which deals with your vehicle. Conditions of application: engine stopped, ignition on.

Order

Function

Parameter or status Check or action ET001: + after ignition computer computer supply voltage engine immobiliser immobiliser code programmed computer locked following an impact

Display and notes

Fault finding

ACTIVE

+ after ignition PR004: 11 < X < 14 volts

If there is a problem: check the charge circuit.

ET002: 2 Immobiliser ET099:

INACTIVE

ACTIVE

In the event of a problem: Test the multiplex network In the event of a problem:Consult fault finding procedure ET264. In the event of a problem: Perform the manifold pressure sensor circuit fault finding procedure (DF045)

Computer

ET264:

PR016: 4 Pressure sensor PR001: ET129:

atmospheric pressure manifold pressure accelerator pedal no load accelerator pedal Full load pedal travel pedal position track 1 pedal position track 2 motorised throttle valve in defect mode

X = atmospheric pressure 10% X = atmospheric pressure 10% ACTIVE

ET128:

INACTIVE

Accelerator pedal (released)

PR203: PR206:

X < 20%

PR207:

X < 20%

In the event of a problem: Perform the fault finding procedure forthe following faults: potentiometer pedal circuit track 1, potentiometer pedal circuit track 2 and potentiometer pedal circuit (DF125, DF126 and DF129)

Throttle body (accelerator pedal released)

ET118:

In the event of a problem: Consult fault finding procedure ET118.

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INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action ET003: throttle position no load throttle position: full load measured throttle position motorised throttle body position specifications measured throttle position track 1 measured throttle position track 2 minimum stop position programmed track 1

Display and notes

Fault finding

ACTIVE

ET005:

INACTIVE X = throttle body position specifications 10 % X < 20%

PR017:

PR113:

PR110: Throttle body (accelerator pedal released)

X < 20%

6 (continued)

PR111: PR198:

X < 3% X = position in % of minimum stop programmed track 1 for a throttle body, MGI make or X = value of the limphome position for a throttle body, make VDO X = position in % of maximum stop programmed track 1 for a throttle body, MGI make or X = value of the limphome position for a throttle body, make VDO

In the event of a problem: Perform the fault finding procedures for the following faults: throttle potentiometer circuit and throttle valve stop programming (DF002 and DF226)

PR199

maximum stop position programmed track 1

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INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action PR200: minimum stop position programmed track 2

Display and notes X = position in % of minimum stop programmed track 2 for a throttle body, MGI make or X = value of the limphome position for a throttle body, make VDO X = position in % of maximum stop programmed track 2 for a throttle body, MGI make or X = value of the limphome position for a throttle body, make VDO INACTIVE INACTIVE Value fixed at approximately 400 mvolts Approximately 128 INACTIVE Value fixed at approximately 400 mvolts

Fault finding

6 (continued)

Throttle body (accelerator pedal released)

PR201:

maximum stop position programmed track 2

In the event of a problem: Perform the fault finding procedures for the following faults: throttle potentiometer circuit and throttle valve stop programming (DF002 and DF226)

ET030: ET037: 7 Upstream oxygen sensor PR009: PR035: ET031: PR010: 8 Downstream oxygen sensor

upstream sensor heating mixture control upstream oxygen sensor voltage richness correction value downstream sensor heating downstream oxygen sensor voltage

In the event of a problem: Perform the fault finding proceduresfor the upstream oxygen sensor heating circuit and upstream oxygen sensor circuit (DF018 and DF057) If there is a problem: apply the diagnostic procedure for the following faults: downstream sensor input signal and downstream oxygen sensor heater circuit (DF038 and DF058) In the event of a problem: Perform the brake pedal circuit fault finding procedure (DF135)

ET032: 9 Brake pedal (released)

brake pedal pressed redundant brake pedal

INACTIVE

ET143:

INACTIVE

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INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action Speed limiter ON/OFF switch pressed ET192: cruise-control / speed limiter function

Display and notes

Fault finding

STATUS 1: Cruise-control ON/OFF switch pressed

Speed limiter ON/OFF switch pressed ET192: cruise-control/ speed limiter function

STATUS 2: Speed limiter ON/OFF switch pressed

Speed limiter ON/OFF switch pressed and Suspend switch on steeringwheel control pressed 10 Cruise control/ speed limiter ET192: cruise-control/ speed limiter function

STATUS 3: Suspend switch pressed

Speed limiter ON/OFF switch pressed and Suspend switch on steeringwheel control pressed ET192: cruise-control/ speed limiter function

In the event of a problem: apply the fault finding procedure for the cruise control / speed limiter (DF235) fault and consult the wiring diagram of the vehicle concerned.

STATUS 4: Restart switch pressed

Speed limiter ON/OFF switch pressed and + switch on steering-wheel control pressed ET192: cruise-control/ speed limiter function

STATUS 5: Incrementation switch pressed

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INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action Speed limiter ON/OFF switch pressed and + switch on steering-wheel control pressed ET192: cruise-control/ speed limiter function

Display and notes

Fault finding In the event of a problem: apply the fault finding procedure for the cruise control / speed limiter (DF235) fault and consult the wiring diagram of the vehicle concerned.

10 (continued)

Cruise control/ speed limiter

STATUS 6: Decrementation switch pressed

Clutch pedal released ET182: 11 Clutch pedal clutch pedal switch

INACTIVE: Only on vehicles equipped with cruise control / speed limiter ACTIVE: On vehicles not equipped with cruise control / speed limiter this status does not change

Clutch pedal pressed ET182: clutch pedal switch

IN the event of a problem consult the wiring diagram for the vehicle concerned

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INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action

Display and notes

Fault finding

Command Window 8 fuel pump relay AC010: fuel pump relay You should hear the fuel pump operating You should hear the air conditioning clutch compressor engage The canister bleed solenoid valve should operate In the event of a problem: consult fault finding procedure AC010. In the event of a problem: perform fault finding procedure DF228 In the event of a problem: perform the Canister bleed solenoid valve circuit fault finding procedure (DF014) In the event of a problem: perform the camshaft shifter fault finding procedure (DF063) In the event of a problem: perform the Motorised throttle body fault finding procedure (DF254) In the event of a problem: consult fault finding strategy AC626 In the event of a problem: consult fault finding strategy AC625 In the event of a problem: consult fault finding strategy AC002 In the event of a problem: consult fault finding strategy AC620 In the event of a problem: perform the bimode intake solenoid valve circuit fault finding procedure (DF308).

Air conditioning compressor

AC003:

air conditioning compressor

Canister bleed solenoid valve

AC016:

canister bleed solenoid valve

Camshaft shifter

AC491:

camshaft shifter

The camshaft shifter should operate

Motorised throttle body

AC621:

motorised throttle body

The motorised throttle body should operate

low speed fan assembly High speed fan assembly Thermoplunger relay no. 1

AC626:

low speed fan assembly High speed fan assembly thermoplunger relay no. 1

You should hear the fan running at low speed You should hear the fan running at high speed You should hear the thermoplunger no. 1 relay engage You should hear the relays on thermoplungers nos. 2 and 3 engage The bi-mode intake solenoid valve should be heard operating

AC625:

AC002:

Thermoplunger relay no. 2

AC620:

thermoplunger relay no. 2

Bi-mode intake solenoid valve

AC002:

bi-mode intake solenoid valve

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INJECTION Fault finding - Conformity check

NOTES

The values indicated in this conformity check are given for reference purposes only. It is therefore vital to consult the Technical Note which deals with your vehicle. Application conditions: engine warm at idling speed, without electrical users.

Order

Function

Parameter or status Check or action PR016: atmospheric pressure manifold pressure

Display and notes X = atmospheric pressure 10% X< 500 mbars X = Idle speed specifications 50 rpm 730 < X < 780 rpm

Fault finding In the event of a problem: Perform the manifold pressure sensor circuit fault finding procedure ( DF045)

Pressure sensor PR001:

PR006: PR041:

idle speed engine idling speed reference. idle speed regulation power assisted steering pressostat connection power assisted steering pressostat mixture control upstream oxygen sensor voltage downstream oxygen sensor voltage richness correction value

Idle speed

None.

ET039: ET067: 3 Power assisted steering pressure switch

ACTIVE

ACTIVE None. ACTIVE if steering wheel is moved ACTIVE In the event of a problem, perform theUpstream oxygen sensor circuit and the Downstream oxygen sensor circuit fault finding procedures (DF057 and DF058)

ET034:

ET037: PR009: 4 Richness regulation

50 < X < 800 mV

PR010:

The value should be as stable as possible The value should be in the region of 128

PR035:

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INJECTION Fault finding - Conformity check

NOTES

Order

Function

Parameter or status Check or action

Display and notes

Fault finding

Air conditioning requested by the driver ET016: connection between injection AC air conditioning request air conditioning compressor refrigerant fluid pressure power used by the AC compressor fast idle speed

ACTIVE

ET009:

ACTIVE In the event of a problem: apply the fault finding procedure for faults "DF012, DF118 et DF228".

Air conditioning

ET070:

ACTIVE

PR027: PR044:

0 < X < 32 bars

X > 300 W

ET038:

ACTIVE In the event of a problem: perform the fault finding procedure on the coolant temperature sensor circuit (DF004) In the event of a problem, perform the fault finding procedure on the air temperature sensor circuit (DF003) In the event of a problem,perform the Pinking sensorcircuit fault finding procedure (DF006)

Coolant temperature sensor

PR002:

coolant temperature

X = Engine temperature 5 C - 40 < X < +120C

Air temperature sensor

PR003:

air temperature

X = Engine temperature 5 C - 40 < X < +120C

PR013: 8 Pinking sensor PR015:

On vehicles not equipped with the speed control function

There is no clutch pedal switch on vehicles not equipped with the speed control function. Status ET182 "clutch pedal switch" still shows ACTIVE.

On vehicles not equipped with the speed control function

On vehicles equipped with the speed control function There is a clutch pedal switch on vehicles equipped with the speed control function. Status ET182 "clutch pedal switch" shows ACTIVE if the clutch pedal is pressed. Status ET182 "clutch pedal switch" shows INACTIVE if the clutch pedal is released. Even though there is no fault finding procedure on this signal, in the case of a problem with the clutch pedal switch, there is a strategy to detect racing of the engine speed; in this case the cruise control is automatically disconnected. Check the cleanliness, connection and condition of the clutch pedal switch connector. Change the connector if necessary. With the ignition on, check for the presence of + 12 volts on track A1 of the clutch pedal switch connector. Repair if necessary using the relevant wiring diagram. Check the insulation and continuity of the connection between: Injection computer track track 48 track A2 clutch pedal switch Repair if necessary.

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INJECTION Fault finding - Command interpretation

COMPUTER LOCKED FOLLOWING AN IMPACT

ET264

NOTES

There must be no faults present or stored.

On receiving an impact detection signal emitted by the airbag computer on the multiplex network, the injection computer will do the following, having received the signal (after maximum 10 milliseconds): Stop the fuel pump supply, the ignition and the petrol or LPG injection. Status 264 "computer locked following impact" changes to STATUS 1. The only way of restarting is to switch off the ignition for 10 seconds. The only way of clearing status ET264 is to clear the faults stored.

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INJECTION Fault finding - Command interpretation

MOTORISED CHOKE VALVE IN DEFECT MODE

ET118

NOTES

There must be no faults present or stored.

NORMAL MODE

STATUS 1

MOTORISED THROTTLE IN LIMP-HOME MODE: This defect mode is indicated by a constant engine speed for every gear ratio, whatever the position of the accelerator pedal. It is associated with: "DF002" Throttle potentiometer circuit, "DF226" Throttle stop programming, "DF254" Motorised throttle request or "DF255" Security of operation of throttle/pedal.

STATUS 2

INJECTION CUT-OFF: This defect mode is not used on the SIRIUS 34 injection computers.

STATUS 3

PEDAL FAULT (loss of driver control): This defect mode is indicated by: no effect of pedal, fast idling and if the brake pedal is pressed the engine speed changes to idle speed. It is associated with: "DF125" Pedal potentiometer circuit track 1+ "DF129" Pedal potentiometer circuit or "DF125" Pedal potentiometer circuit track 1 + "DF126" Pedal potentiometer circuit track 2.

STATUS 4

REDUCTION OF ENGINE PERFORMANCE (limitation of performance): This defect mode is indicated by: Limitation of the vehicle speed, limitation of the command section of the throttle, limitation of the vehicle acceleration (slow increase in the command section of the throttle). It is associated with: "DF002" Throttle potentiometer circuit, "DF125" Pedal potentiometer circuit track 1, "DF126" Pedal potentiometer circuit track 2, "DF129" Pedal potentiometer circuit or "DF258" First sensor reference voltage.

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INJECTION Fault finding - Customer complaints

NOTES

Customer Complaints should only be investigated after a complete check has been run using the fault finding tool.

NO COMMUNICATION WITH THE COMPUTER

CHART 1

STARTING PROBLEMS

CHART 2

IDLE SPEED FAULTS

CHART 3

PROBLEMS WHEN DRIVING

CHART 4

NO AIR CONDITIONING

CHART 5

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INJECTION
Fault finding - Fault finding chart

CHART 1

NO COMMUNICATION WITH THE COMPUTER

NOTES

None.

Try the fault finding tool on another vehicle. Check: the connection between the fault finding tool and the diagnostic socket (lead in good condition), injection, engine and passenger compartment fuses. Repair if necessary. Check that + 12 volts is present on track 16 of the diagnostic socket. Repair if necessary. Connect the bornier in place of the computer and check the insulation, the continuity and absence of spurious resistance on the connections between: Diagnostic socket track 5 vehicle earth Diagnostic socket track 4 vehicle earth Repair if necessary. Ensure the presence of + 12 Volts on: Injection computer track 30 Injection computer track 29 (ignition on) Repair if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Injection computer track 3 vehicle earth Injection computer track 28 vehicle earth Injection computer track 33 vehicle earth Injection computer track 67 vehicle earth Injection computer track 56 diagnostic socket track 7 Repair if necessary.

AFTER REPAIR

Test using the fault finding tool.

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INJECTION
Fault finding - Fault finding chart

CHART 2

STARTING PROBLEMS

NOTES

This customer complaint should only be investigated after a complete check has been run using the fault finding tool.

Check the condition of the battery. Check the tightness and oxidation of the terminals. q Check that the wiring on the battery/starter motor and battery/vehicle earth is in good condition. q Check that the starter motor rotates properly.
q q

Check that there is petrol present (the petrol gauge may be faulty). Check that the petrol is of the proper type. q Check that no hoses are pinched (especially after a removal operation). q Check the condition of the petrol filter. q Check that the tank vent is not blocked. q Make sure that the fuel pump is running correctly and that petrol is reaching the injector rail. q Make sure that the petrol pressure regulator is in good condition by checking the pressure.
q q

Make sure that the air filter is in good condition; change it if necessary. Check the condition of the intake ducts (no air leaks, pinching of the air intake pipe etc.). q Disconnect the pipe that links the canister bleed solenoid valve to the intake manifold and plug it so that no air can escape. If the disturbance stops, the canister bleed is at fault.
q q

Check that the spark plugs are in good condition and that they correspond to the engine type; change them if necessary. q Remove the engine speed sensor and make sure it has not been rubbing on its target (increase in the air gap). If it has, check the condition of the engine flywheel. q Make sure that the ignition coils are in good condition.
q

Check that the exhaust system is not blocked nor the catalytic converter clogged.

Make sure that the engine turns freely. Check the engine compression q Check the timing.
q q

AFTER REPAIR

Test using the fault finding tool.

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INJECTION
Fault finding - Fault finding chart

CHART 3

IDLE SPEED PROBLEMS

NOTES

This customer complaint should only be investigated after a complete check has been run using the fault finding tool.

Check that there is petrol present (the petrol gauge may be faulty). Check that the petrol is of the proper type. q Check that no hoses are pinched (especially after a removal operation). q Check the condition of the petrol filter. q Check that the tank vent is not blocked. q Make sure that the petrol pressure regulator is in good condition by checking the pressure.
q q

Check that the spark plugs are in good condition and that they correspond to the engine type; change them if necessary. q Make sure that the ignition coils are in good condition.
q

Check that the exhaust system is not blocked nor the catalytic converter clogged.

Check on the dipstick that the oil level is not too high. Check the engine compression q Check the timing.
q q

AFTER REPAIR

Test using the fault finding tool.

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INJECTION
Fault finding - Fault finding chart

CHART 4

PROBLEMS WHEN DRIVING

NOTES

This customer complaint should only be investigated after a complete check has been run using the fault finding tool.

Check that there is petrol present (the petrol gauge may be faulty). Check that the petrol is of the proper type. q Check that no hoses are pinched (especially after a removal operation). q Check the condition of the petrol filter. q Check that the tank vent is not blocked. q Make sure that the petrol pressure regulator is in good condition by checking the pressure.
q q

Check that the spark plugs are in good condition and that they correspond to the engine type; change them if necessary. q Make sure that the ignition coils are in good condition.
q

Check that the exhaust system is not blocked nor the catalytic converter clogged.

Check that the engine cooling system is working correctly. Check on the dipstick that the oil level is not too high. q Check the engine compression q Check the timing.
q q

q q

Check that the wheels turn freely (calipers, drums and bearings not seized). Check the condition of the tyre pressures.

AFTER REPAIR

Test using the fault finding tool.

SIRIUS 34 E5 V04-08 2.0

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INJECTION
Fault finding - Fault finding chart

CHART 5

NO AIR CONDITIONING

NOTES

This customer complaint should only be investigated after a complete check has been run using the fault finding tool.

Does parameter PR027 (coolant pressure) have a value of zero?

YES

Test the air conditioning charge. Repair if necessary. Check the connection and condition of the air conditioning sensor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connections between: Injection computer track 79 Coolant pressure sensor Injection computer track 83 Coolant pressure sensor Injection computer track 47 Coolant pressure sensor Repair if necessary. Check the resistance of the air conditioning pressure sensor. Replace the sensor if necessary.

Check the connection and condition of the air conditioning compressor connector. Change the connector if necessary. Connect the bornier in place of the computer and check the insulation, continuity and absence of interference resistance on the connection between: Injection computer track 39 Air conditioning compressor Repair if necessary. Check that the air conditioning compressor clutch is engaging properly by entering command AC003 (air conditioning compressor) in the fault finding tool. Repair if necessary.

Consult the fault finding strategy for the heating and ventilation if the incident persists.

AFTER REPAIR

Test using the fault finding tool.

SIRIUS 34 E5 V04-08 2.0

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