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Introduction ................................................. ..........................

Multimeters ................................................. .........................
Instructions and Basics ............................................
Cautions when using a Multimeter ......................................
Table with symbols and quantities of electricity: ..........
Introduction to electronic injection .........................................
Main components ................................................ ....
NTC ................................................. ...............................
Diode ................................................. .............................
Voltage regulator ................................................ ..
Electrolytic capacitor ................................................ .......
Drive ................................................. ..............................
Transistor ................................................. .......................
Eprom - ROM memory .............................................. ....
RAM memory ................................................ .................
PAL decoder ................................................ ..........
EEprom - 95160 ............................................... ..............
Processor ................................................. ...................
Crystal or Clock ............................................... ................
Common defects (cause and effect) ......................................
Cause ................................................. ............................
It is made ............................................... .. ..............................
Solution ................................................. ..........................
Electrical Resistance ................................................ ...........
Resistor Test ................................................ ........
Resistance calculation table for a resistor: ............
SMD Resistor ................................................ ..................
Electronic injection modules: Features, defects
most common and repair tips ........................................
Magneti Marelli 4SF - Fiat ............................................. ..
Magneti Marelli 4AFB - Fiat ...........................................
Magneti Marelli 49FB - Fiat ............................................
Magneti Marelli G7.11 - Fiat ...........................................
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Magneti Marelli 1G7 - Fiat .............................................

Magneti Marelli G7 - Fiat ............................................. ...
Magneti Marelli 1ABG - Fiat ...........................................
5NF - Fiat ............................................... ........................
Motronic 1.7 - Fiat .............................................. .............
7.9.6 - Fiat and GM ........................................... .................
HSFI or MT27E - Fiat and GM ..........................................
Motronic 1.5.1 - GM ............................................ ............
Multec 700 - GM .............................................. ..............
Motronic 1.5.4 - GM ............................................ ...........
Multec MPFI EMS –GM ............................................. .....
Multec H VHC - GM ............................................. ..........
EEC V - ANIL AND ENIO - FORD ......................................
EEC IV - FORD .............................................. ..............
Magneti Marelli 4CFR - Ford ........................................
Magneti Marelli 4AFR - Ford .........................................
Magneti Marelli 4LV - VW .............................................
Magneti Marelli 1 AVB - VW ........................................
Magneti Marelli 4SV ............................................... .......
Temic 1.74 ................................................ ....................
1 AVP - VW .............................................. ....................
MP 9.0 - VW .............................................. ...................
1AVI - VW ............................................... .....................
4AVP - VW ............................................... ....................
4BV - VW ............................................... ......................
7.5.20 –VW ............................................. ......................
Bosch 3.8.3 .............................................. .....................
Bosch LE - JETRONIC .............................................. ..
Bosch ME 7.4.4 Petrol ............................................
Magneti Marelli 5NP 02 .............................................. ..
Magneti Marelli 6LP1 ............................................... .....
Magneti Marelli 6LPb ............................................... .....
Magneti Marelli 5NP 01 .............................................. ..
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Bosch MP7.2 .............................................. ..................

Siemens Sirius 3134 ............................................... ......
Siemens - Sirius 32. ............................................. ........
Mercedes Class A 160 and 190 - VDO MSM ................

Introduction
Over time and the need to improve everything, the number
of electronic components in automobiles comes
progressively increasing in order to improve
from fuel efficiency to driver comfort.
As a result, more and more mechanical parts are
transformed into electronic components.
Today the vast majority of automobiles use the
electronic injection and are constantly increasing
as well as the need for qualified technicians to
ensure its smooth operation.
Therefore, investing in material and knowledge is no longer
a matter of staying ahead of the competition, it's almost
an obligation.
Next, you will learn more about injection modules
electronics: the main characteristics, identify the
main components, their functions, the most defects
common, and more.

Multimeters
One of the main and essential tools for anyone
works with electrical and automotive electronics is the
multimeter, know all the functions and know how to use it
correct way can help a lot when diagnosing
failure or make a repair.
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Instructions and Basics

There are basically two types of multimeters, the analog
and digital, but we go from the emphasis to digital, because it
offers greater ease when making a measurement.
Through a display we can easily see the greatness
measured without the need to multiply and
readings on complicated scales as in the case of
analog multimeters.
We use the digital multimeter for various purposes, the
most common is to perform some measures, such as
example:

• Measure electrical voltage (volts - V).

• Measure electrical current (amps - A).
• Measure electrical resistance (0hms – Ω).

In addition to these examples, depending on the model, it can

have options for other measures such as: frequency,
temperature, semiconductors (for example a diode),
transistors, capacitance, continuity (with audible signal),
etc.
Regardless of the magnitude, in digital multimeters the value
of the selected scale already shows the maximum value to be
measured. See below for an example of the most
common found for each scale:

• Resistance scales : 200Ω, 2000Ω or 2kΩ, 20kΩ,

200kΩ, 2MΩ or 2000kΩ
• DC voltage ranges: 200mV, 2V, 20V,
1000V or 200Mv, 2V, 20V, 1000V or 1kV.
• Alternating voltage scales: 200V, 750V or 200V, 750V.
•DC scales: 200uA, 2000uA or
2mA, 20mA, 200mA, 2A, 10 or 20A.
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•Alternating current scales : 2A, 10A.

The selection of the scales can usually be done through
a rotary key, buttons or even no key
any, are the case of the digital multimeter the auto function
range (auto scale), it selects the scale and the magnitude
automatically.

There are also some models of multimeters with auto range

which has only one voltage scale, one for
current and one for resistance, it is not necessary to
worry about selecting a specific scale to measure
a certain voltage value.
An important detail when handling a digital multimeter
is to know the correct scale for the measurement you want
of. Below are some examples of quantities with
their names on the scales:
• Continuous voltage : VCC, DCV, VDC or V with a
dashed line and another continuous line over it.
• AC voltage: VCA, ACV, VAC or V together with the
symbol - on it.
• Direct current: DCA, ADC or A with one line
dashed and another continuous on it.
• Alternating current: ACA or A together with the symbol -
about it.
• Resistance: 0hms, Ω.

Cautions when using a Multimeter

The use of a multimeter must be done with sufficient
attention and never touch your fingers with any
test leads during measurement to avoid
an incorrect reading, or depending on what is
measuring, you risk an electric coke. ever
read the multimeter's manual before using.
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Most digital multimeters have four terminals

for connecting the test leads. Usually one is
in common (COM) and the others are for each
specific measurement (voltage, resistance and current).
Terminals always indicate which scales they are
must be used.
See the following example of how they have a
multimeter with auto range function.
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1. Terminal indicated with 10AMAX - We must connect the

red test tipfor measuring current
continuous or alternating pressure greater than 200mA.
Note: Some digital multimeters do not have
the option to measure alternating current. Before
do the test make sure the multimeter has this
option.

2. Terminal indicated with µA / mA - We must connect the

red test tipfor measuring
amperage (in micro or milli amps). At the
maximum of 200mA.

3. Common terminal, COM - We must connect

always the black test tip.

4. Terminal indicated with V / Ohms / F / Hz - We must

connect the red test lead to measure
voltage (continuous or alternating), frequency, diode,
resistance, continuity, capacitance and hFE.
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Table with symbols and quantities

of electricity:

Introduction to electronic injection

Thanks to the electronic fuel injection system,
manufacturers have managed to greatly improve performance
engine efficiency, fuel efficiency and engine comfort
driver.
The electronic injection system uses several sensors and
actuators to provide the engine with the correct mix of air and
fuel for specific operating conditions.
All of these sensors and actuators are monitored and
controlled through a management module
electronic.
So it's very important to know how the “brain”
of the system works to have from an accurate diagnosis
until you do your own repair.
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Main components NTC

If it is a protection device, it is usually
connected between the power input (positive and negative).
In case of an overload is due to a short circuit
or because of a reversal of the polarity of the battery,
this component heats up and closes a short circuit between
positive and negative inputs, breaking the trails of
board at the module entrance, protecting the components
more sensitive.
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Diode
In the case of Rectifier Diodes, when a
over voltage, that is, the “voltage” is exceeded, the
component conducts the current in the direction of blocking the
diode, producing the same effect as the previous example, the
disruption of entry trails.
A diode has the characteristic of allowing the passage of
electrical current in one direction and block in the other, to
avoid a short circuit.
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Voltage regulator
The electronic circuit of the exchanges normally works
with 5 volts, therefore, the regulator is one of the components
responsible for the proper functioning of the modules and
injection system.
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Electrolytic capacitor
The capacitor is used to filter the input voltage before and
after the voltage regulator. It consists
internally by two dielectrics and an acidic substance,
over time, this substance may leak
acid causing short circuits and plate corrosion.
These types of capacitors are used in filtering
power supplies, low-voltage oscillating circuits

frequency, low frequency signal coupling and

timer circuits.
There are two types of electronic capacitors: Those that have the
metallic body (the most common) and those with the body in
epoxy, similar to diodes. Some show the
characteristics indicated by a letter (working voltage)
and a number (value in MF): ex: 22/16.
To test electrolytic capacitors it is necessary to
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firstly, to know its value in Microfarade to be able

select the correct measurement scale.
Scale values in microfarade
Scale
Microfarade (µF)
X1 or X10 ------------------------ From 330 to 10,000
X1K -------------------------------- From 0.05 to 220
Also note that the electrolytic capacitor has
polarity (+ and -). It is also found in the body of the
capacitor the working voltage value.
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Drive
They are the components responsible for triggering the
injector nozzles, ignition coil, and solenoids through
of a low power electrical signal.
To access internal functions and features,
check in the Datasheet.
A coil drive normally short-circuits
when the coil is defective.
The drive consists of a power transistor that can be
be mounted individually or in Integrated Circuit
with several internal components.
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Transistor
Low power transistors are used for the
switching of drives and for signal communication
processed digital.
The function of the transistor is to switch electrical circuits from
high power through a low power.
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It works similar to a relay, but

much more effectively.
Among other functions, it is also used mainly
as an output drive to drive injector nozzles,
coils etc.
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Eprom - ROM memory

It is found in models of
type DIP, PLCC, PSOP or integrated internally in the
processor in Hybrid ECUs.
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They carry the parameter information to the

engine operation: advance, injection time,
temperature etc.
Programming can be done only by changing the chip or
with the use of special equipment.
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RAM memory
It is the volatile memory, where the auto parameters are
injection system adaptations.

PAL decoder
Transforms analog signals into digital signals and
organizes all this information for the processor.
It is possible to find modules with a single component, or
with several, with unique functions (rotation, detonation,
etc.) which is the case with some Bosch power stations.

EEprom - 95160
Serial Eprom with SOIC8 package are
information such as immobilizer code is stored,
engine, airbag, body module etc.
In some cases they can be reprogrammed via scanner or
with the help of programmers.
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Processor
As with a conventional computer, the processor is the
injection module heart.
Contains internal software with working parameters
of the system.
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Crystal or Clock
In every crystal, the material it is made of has a
unique characteristic of having a natural frequency.
The processor uses this frequency to determine the
time in which all the routines will be performed
job.

Therefore, it is observed that the more modern the central

the higher the clock frequency (crystal) of the
processor.
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Common defects (cause and effect)

Cause
Several factors can cause poor contact in welds
terminals, components or broken trails.
For example:
• Time action;
• Oxidation;
• External short circuit;
• Over load, due to lack of grounding of the
external components.

It is made
• Some ground or power will be missing
sensors;
• Actuators will not work;
• Central does not work.

Solution
• Check the cause of the defect;
• Redo the weld or rebuild the track with wire
cloaked.
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Electrical Resistance
Resistors are electronic components that have the
function hinders the passage of electric current through the
your stuff. This difficulty is called resistance
electrical.

Resistor Testing
Unit ............................... OhmΩ
3
Kilo Ohm .............................. kΩ = 10
6
Mega OHM .......................... MΩ = 10

There are two types of resistors, fixed and variable:

Fixed: They are resistors in which their electrical resistance does not
can be changed (features two terminals.)

Variables: Are those resistors in which their resistance

electrical can through an axis or stroke (rheostat,
Potentiometer).
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A color code is used to identify the value of a

resistor, where each color and its position in the body of the
resistors represent a value or a multiplicative factor.

Resistance calculation table for one

resistor:
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SMD resistor
SMD resistors are at least 1/3 the size of
conventional resistors. Most are welded on the side of
under the board by the side of the tracks, occupying much less
space.
They are resistors to be mounted on the surface (SM in
English Surface Mounting). Your reference has a
encoding which can be three or four digits. The most
used in electronic equipment are the resistors
SMD with three.

In resistors with 3 characters, the first two

numbers indicate the most important digits of the resistor,
the last digit indicates the multiplication factor, in this case
100, so in the case of the resistor in the example above one has
a resistance of 1000 ohms.
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Electronic injection modules:

Features, more defects
tips and repair tips

Magneti Marelli 4SF - Fiat

Vehicles: Fiat with 1.0, 1.4 and 1.8 engines, with electronic accelerator.

5 3
2
1 1
0 6 7 8 9
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Main components:

1. 5V regulator;
2. Nozzle / Fan / Main relay;
3. Electronic accelerator;
4. Capacitor;
5. Coil 1 and 4;
6. Knock sensor;
7. Processor - ST -10;
8. Crystal - 10 MHz;
9. Lambda probe;
10. coil 2 and 3.

Technical specifications
Special features
• The letter '' S '' after 4 means that the system has
electronic accelerator;
• It is considered a hybrid plant, because it has the
injection and immobilizer maps on the processor.
• Injection and immobilizer maps can only be
accessed with ST10 programmer, and through Boot.
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Common defects
• Failure in the DC motor drive, causing failure in the
acceleration.
• Processor software failure. Many power plants
may malfunction due to
defect in the processor software (oscillation of
idling, acceleration failure, etc.).
exchange the software for another (tele-loading).
Ignition drive - VB 025 MSP
Between point 9 of the component and the processor, there is a
current limiting resistor of 1Kohms.
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Lambda probe heating control - VDN 7N V04

This component controls the negative, by PWM, varying the
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applied voltage.
Mult Drive L9131 - 36 Pins
Controls 10 components of this ECU.

Mult Drive L9131 - 36 Pins

Controls 10 components of this ECU.
Drive L9132 - 36 Pins
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Drive L9132 – 36 Pinos

Butterfly motor control drive - TLE

6209 R
Controls the opening and closing of the throttle
acceleration, by PWM.

Pins 1 - 10 - 11 - 20 (Ground) are connected to the

metal at the bottom of the component, where it should be
soldered to the circuit board.This ensures that the component
don't overheat.
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Detonation interface - AA205AC1 - H992N0430 - ST -

20 Pins
The detonation circuit has no capacitors at the input,
only 2Kohms series resistors.
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Magneti Marelli 4AFB - Fiat

Vehicles: Palio 1.0 8V Flex.

Main components
1. Fan 1 and 2 / Main relay;
2. Lambda probe;
3. Cold start;
4. Coil 2 and 4;
5. Coil 1 and 4;
6. Nozzles / Stepper motor / Canister;
7. Soic 95160 / Code;
8. Processor - ST10;
9. Can network; (Note: Cars with BC).
10. Capacitor.
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Technical specifications
Special features
• There is 4AFB with panel, box or Body Computer.
4AFB - Gasoline is not interchangeable with flex.
Common defects
• Oxidation on the plate, electro fan and cold start.

Note: AFR regulation is used, 9

for alcohol and 13 for gasoline. The cold start would only
function if the AFR is below 10.5 and the temperature
water and air are below 16 ° C.
Immobilizer, use the decode.
Processor: ST10.
RPM signal: Phonic.
Coil signal: Digital.
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Magneti Marelli 49FB - Fiat

Main components
1. Multi functions - L9104 - 5V regulator - Relay
main - Relay A / C;
2. Memory Rom - 29F200 AB;
3. Processor - Motorola - ZC 439507 MF T 20;
4. MAR 9109 PD Multi Drive - 20 pins - Injectors -
Canister - Stepper motor - V1 and V2 fan;
5. Drive ignition coil 1 and 4 - VB025;
6. Ignition coil drive 2 and 3 - VB025;
7. Detonation interface - L9119;
8. Soic 8 - 95040 - Immobilizer;
9. Blasting interface – AA205AC.
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Common defects
• Oxidation of the board causing fan failure or
burning the drive that controls the fan;
• Burn the drive that controls the nozzle outlet.
Ignition coil drive – VB025

MAR 9109 PD multi drive - 20 pins - Injectors -

Canister - Stepper motor - Fan V1 and V2.
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Multi functions - L9104 - Regulator 5V- Main relay - Relay

BC

Detonating magneti – L9119

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Magneti Marelli G7.11 – Fiat

List of components
• Processor - Motorola MC68HCP11A1 - 52 pins;
• RAM memory - MHS MM3 65162S0129;
• PAL-ST B22AF627 decoder;
• BU 931 and BU 941 - Ignition Coils;
• L4947R - Voltage regulator 5 volts;
• CA3262 AE - Quadruple mult drive.
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BU 931 or BU 941 - Ignition Coils

Coil A - Cylinder 1 and 4

The coil A drive is driven by the PNP transistor of

low power shown below, among them is the transistor
current limiter of 100 Ohms.
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Coil B - Cylinder 2 and 3

The drive of coil B is driven by the PNP transistor of

low power shown below, among them is the resistor
current limiter of 100 Ohms.
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The injector drive is driven by the low-voltage PNP transistor

power shown below.
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CA 3262 AE - Quadruple mult drive

This component works similarly to
NPN transistors, that is, the input (trip) is made by
positive 5 volts and the output is negative.

Drive A - Diagnose - Solenoid Relay 2 and Solenoid Valve 1

Drive B - Fuel pump relay - Injection light

Note: The pump relay and the fault lamp

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have a diode in series, as shown in the following image.

Processor - Motorola MC68HCP11A1

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Magneti Marelli 1G7 - Fiat

Vehicles: Canopy, Fiorino and Uno, 1.0 and 1.5 mpi.

6 54

7 3
8 2
9 1
1
0 1 1 1
1 2 3
Main components
1. Stepper motor;
2. Coil 2;
3. Coil 1;
4. Canister;
5. Double relay;
6. Capacitor;
7. Nozzle drive (single point); Note: You will not have the drives
8 and 9.
8. Nozzle 2 and 3;
9. Nozzle 1 and 4;
10. 5V regulator;
11. Capacitor;
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12. Processor;
13. Eprom memory.

Technical specifications
Special features
• The immobilizer is on the processor.
• The immobilizer is optional.
Common defects
• The 96/97 system came out with a processor defect.
When successive failures occur, the software of the
processor blocks the stepper motor, causing
idle oscillation. This failure will only be
repaired when the reset procedure is performed.
processor, using the tool chip.
Note: Nozzle drive - Commercial - IRF 34.

Drive relay A
Activate side A of the double relay, by pin 4 of the ECU.
Caution: Between pin 4 of the ECU and the relay drive A has a
diode.

Micro transistor that drives the A relay drive

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Drive Coils ignition

Drive CA 3262 AE - Relay A / C - Relay B - Injection light

This component works similarly to

NPN transistors, that is, the input (trip) is made by
positive 5 volts and the output is negative.
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Magneti Marelli G7 - Fiat

Vehicles: Uno / Premium Families / Tempra 8V and 16V.

2 1
0
3 9

4 7

5 6 8

1. Main Components
2. Varistor;
3. 5V regulator;
4. Nozzle drive;
5. Processor;
6. Eprom;
7. Rom memory;
2. Auxiliary processor - MC68HC11;
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3. Coil drive 1;
4. Coil drive 2;

Technical specifications
Rotation Signal: Phonic 60-2
Transformation: Tempra 8V to 16V just change the file
One 1.0 gas. For 1.5 gas. just change the
archive
OBS: 1 - When exchanging these exchanges
pay attention if the car has air conditioning and sensor
detonation.
2- It is not advisable to exchange
gasoline for alcohol because the starting system is
original cold will not work.
Eprom: 27C256 - Uno e Elba 1.5 and 1.6 from 92 to 94
27C512 - Family One and Tempra from 94 onwards

Common defects:
- Varistor firing: check for possible
alternator or short circuit in the harness.
How to solve - Change the varistor.
- Disruption of the sensors' TERRA track (follow
pin 31 of the nozzle).
How to solve - resold the track.
- Memory eprom or Ram accused by the scanner.
How to solve it - Change the auxiliary processor (photo 8)

- Electrolytic capacitor bursts and corrodes the tracks below

his.
How to solve- Change the capacitor and rebuild the tracks.

Ignition coil drive - BU 931 or BU 941

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The coil A drive is driven by the PNP transistor of

low power shown below, among them is the resistor
current limiter of 100 Ohms.

The coil B drive is driven by the low-voltage PNP resistor

power shown below, among them is the resistor
current limiter of 100 Ohms.
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Injector drive (s)

The injector drive is driven by the low-voltage PNP transistor

power shown below.

L 298 N - Stepper Motor

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L 4947 R - 5V voltage regulator

CA3262 AE - Quadruple Multi Drive

This component works similarly to

NPN transistors, that is, the input (trip) is made by
positive 5 volts and the output is negative.
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Magneti Marelli 1ABG - Fiat

Vehicles: Palio 1.6 16V

Main components
1. DIP memory;
2. Regulator 5 volts;
3. Coil 1 and 2;
4. Protection diode;
5. Canister;
6. Nozzles;
7. Idle actuator.
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Technical specifications
Special features
• Interchangeable with 1.6 16v brava.
Common defects
• High temperature silicone oscillation and heating
temperature.
Note: This car usually mechanics leave
out of point and oscillates slowly and goes out.
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5NF - Fiat
Vehicles: Doblo 1.4 / 1.8 DBW.

4
5
3

2 1
Main components
1. 5V regulator, electric fan;
2. Electronic accelerator, MC33;
3. Coil;
4. Coil;
5. Set of 4 protection resistors of drive nº2 (1Ω).
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Technical specifications
Common defects
• Loss of acceleration - tele-loading or motor drive
of step.

Note: This 5NF ECU before tele

loading we must remove the eprom 95160 for that
perform the necessary programming and boot services.
If you do not remove the eprom 95160 and execute programming
ECU crashes and repair is no longer possible.

Motronic 1.7 - Fiat

Vehicles: Type 1.6 IE 8V
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Main components
1. EPROM;
2. RAM memory;
3. Processor;
4. Pulse controller: Nozzle, coil and actuator drive
ML;
5. Protection diode;
6. Coil 1 and 2;
7. Stepper motor and pump relay;
8. Spout;
9. 5 V regulator;
10. Capacitor.

Technical specifications
Special features
• Pin 1 facing the processor;
• Intel 8051 processor - 68 pins;
• Eprom 27C256 with 32 kb;
• Analog coil signal;
• Phonic RPM signal 60-2;
• Has no immobilizer;
• 1 coil, rotation sensor, 1 injection nozzle.

Common Defects
• Cold solder, if it is damp or oxidized;
• Nozzle and coil oscillation;
• Check that the nozzle is original and the TPS-
BUTTERFLY, the two work together;
• Locked stepper motor warms up the drive motor
step and ends up burning;
• Nozzle no pulses possible defect in the processor
help. This processor also controls the ignition.
• ECU for Clio Mono, Peugeot mono with Bosch 3.1 are
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very similar, but not interchangeable.

7.9.6 - Fiat and GM

Vehicles: Vectra 2.0 Flex and Astra Flex

4 2
5
1

6 7 8 9
Main components
1. Coil;
2. Coil;
3. Protection diode;
4. Electronic accelerator;
5. Nozzles / Fan / Lambda Probe;
6. 5V regulator / pump / main relay;
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7. Processor;
8. Crystal;
9. Electronic throttle signal converter.

Technical specifications
Note: To exchange the ECU from one car to the other,
just change the EPROM 95080.
When reconnecting the ECU, leave the switch on for 60
seconds to adapt.
Unlike the Marelli ECU, this Bosch ECU has a
Signal “converter” of the 4 tps sensors.

HSFI or MT27E - Fiat and GM

Vehicle: Stilo and Montana 1.8

8 7 6 5

2 3 4
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Main components
1. 5V regulator;
2. Soic 95040 or 95160 code;
3. Electronic accelerator;
4. Set of transistors that assist drive 3;
5. Nozzle / Pump / Main Relay / Fan / Air conditioning;
6. Coil;
7. Coil;
8. Processor.

Technical specifications
Special features
• Montana ECU different from Stilo's.

Common defects
• Defect in the butterfly body, inducing to think that the
error is in the ECU.

Note: The butterfly body generally ceases to

function due to failure in the SMD with the number
16250829, which is responsible for activating the body
electronic butterfly.
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Motronic 1.5.1 – GM
7

6
8 1
5

2 3
Main components
1. Pump / stepper motor;
2. Processor;
3. Auxiliary processor
4. Eprom;
5. Main relay;
6. Nozzles;
7. 5V regulator;
8. Coil.
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Technical specifications
Bosch Motronic M151 system, equips vehicles
Omega to gasoline 93 to 94 (Imported).
Multi Drive 30080 3992 - 21 Pins - Low Speed Corrector - Relay A / C -
Canister - Fuel pump relay - Injection light

The diode shown above is between pin 13 of the

component 30080 and pin 22 of the ECU ( Injection Light ).
When you turn the ignition has pulsed signal terminals 2:03 of
amplitude of 5 volts. And at 8 and 9 there is also a signal
pulsed, of the same duration.
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Multi Pin 21 Pin 300 3992 – Injectors

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Left Multi Drive (Nozzles Only)

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Mult drive Right

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5 Volt Regulator - 3009 - 7 pins

Main relay drive - ON 588

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Drive Ignition coil – 30014

Multi drive 30097 - 24 pins

Pin 14 of the Cl 30097 drives the ignition coil drive.

Between pin 14 of the 30097 and the base of the coil drive is
the 100 Ohm current limiting resistor (R 500).
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Multec 700 - GM
Vehicles: Monza, Kadett and Ipanema, from 91 to 96.

Main components
1. Injector drive;
2. 16156085 - Fuel pump relay drive;
3. 34993 - Stepper motor drive;
4. Delco 196 E - 16045980 - PF relay - Injection light -
Flight computer - V2 fan;
5. Processor;
6. Delco 196 E - 16045980 - V1 Fan - Heating relay
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collector - Ascending light - A / C relay;

7. 34992 - 5V regulator;

8. NTC;
9. Processor;
10. Cristal - Clock;
11. Eprom, 27C128

Technical specifications
Special features
• Multec 700 exchanges are all the same, the difference is
only in the mencal (Calibration Memory).
• Drive Beak - Commercial - IRF 540 or IRFZ34N.

Common defects
• Failure in the fan relay drive;
• Bad contact at the injector secondary drive terminals and
pump, causing failure when moving the ECU.
Necessary to resold the terminals.
Note:
o For the injector to pulse, it is necessary to jump the
terminals D9 and D10. Doing this, passes the earthing of the
D9 to D10, that is, for the injector to work is
pin D10 must be grounded.
O ECUs are the same, what changes is the month.
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Injector drive - 3 pins

This component is a FPN NPN transistor, with

ferrite on the coupling (firing). This washer aims to eliminate
electromagnetic interference.
Note: Note that the trigger has a range of 10
volts.
Secondary drive - Injector - Fuel pump
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Processor

Mencal
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Regulator 5 volts - 34992 - 15 pins

Delco 169 E 1 and 2

Delco 169 E - 1 - PF Relay - Injection light - Computer

board - V2 fan - 15 pins
In this component the input (trigger) is negative and its
out (out) is also negative.

Delco 169 E - 2 - V1 fan - collector heater relay

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- Up light - Relay A / C - 15 pins

Stepper motor drive - 34993 - 9 pins

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Note: When the ignition is switched off, the ECU starts the engine
step, that is, to test the drive just turn on and off
the ignition. And test with the oscilloscope.

Pump relay drive and Injector drive

Drive 16156085 - Fuel Pump Relay - 5 pins

Input (trip) + 5 volts and output + 12 volts.
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Motronic 1.5.4 – GM

Main components
1. Coils;
2. Multi fan drivers;
3. Processor;
4. Eprom;
5. 5V regulator;
6. Protection diode;
7. Nozzles, Canister;
8. Stepper motor.
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21-pin multi drive (Injectors, Canister, Fan

speed 1) - 30313;
Negative shooting and negative output.
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Idle Corrector Drive - 7 pins

Ignition coil drive - 30023 - 5-pin – Vectra

Coil A - Coil 2 and 3

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Coil B - Coil 1 and 4

5V regulator and main relay drive - 30358 or 30284

- 15 pins
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This component regulates the voltage 5 volts and also

activates the main relay.

EGR control drive - BTS 5115 A (Blazer and S10)

The component shown controls the activation of the
solenoid connected in series with the EGR hose,
8V Blazer and S10 engines only.
In 16V motors, use linear EGR with drive
electrical, controlled by another drive (PWM).
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24-pin mult drive - B 58108 or TLE 4226 G

In this component, the drive is made by negative and the
output is positive 5V.

Note: If one of the above diodes shorted the

controlled component will be connected directly.This happens
due to the diodes having one of the terminals connected
to the ground.
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Multi Drive 24-pin A (Pump relay, injection light,

ignition drive)
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24-pin Multi Drive (Fan speed 2, Relay A / C, EGR control)

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Multec MPFI EMS –GM

Vehicles: Corsa 1.0 MPFI / 1.6 MPFI / Omega 2.2 MPFI / S-10 MPFI
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Main components
1. Nozzle 1 and 4;
2. Nozzle 2 and 3;
3. Stepper motor;
4. Fault light / turning account / U8 / Canister
5. Fan 1 and 2 / EGR
6. 5V regulator
7. Varistor
8. Lambda probe
9. Processor
10. Eprom
11.Coil Transistor
12. PLD

Technical specifications
- Rotation signal: Phonic 60-2
- Transformation: Corsa 1.0 to 1.6 just change the eprom.
Corsa for Omega 2.2 needs some adjustments in the
module.
- Eprom: 27C256 32Kb
- Immobilizer: When you have it is in the HC11 processor
(photo 9)

Common defects
- Varistor firing: check for possible
alternator or short circuit in the harness
How to solve - Change the varistor
- Direct fan:
How to solve- 1- change 2-reset processor drive
- Fan does not gun:
How to solve-1- check the track 2- check schedule
eprom 3- Change drive.
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Multec H VHC - GM
Vehicles: Montana 1.8, Celta 1.4 and Corsa 1.0.

Main components
1. Nozzles / Canister / Pump / Fan / Probe;
2. Cold start;
3. Stepper motor;
4. Capacitor;
5. Coil;
6. Coil;
7. Crystal;
8. 5V regulator;
9. Soic 95040 code;
10. BGA processor.
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Technical specifications
Special features
• Interchangeable with each other as long as the file of the
injection, flex ECU and gasoline ECU are not fully
interchangeable.
Common defects
• Probe does not read, SOIC corrupts the file and defects
accelerated.
Note: To change the ECU from car to car, simply
change the EPROM.

EEC V - ANIL AND ENIO - FORD

INDIGO
Vehicles: With 1.0 8V Rocan engine.
ENIO
Vehicles: With 1.6 8V Rocan engine.
FRONT

SEE IF
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Main components
1. Protection diode;
2. Main rotation input;
3. Processor;
4. Eprom memory;
5. PLD;
6. Nozzle 1 and 2 / Stepper motor / Pump / Fan;
7. Coil (Cylinder 2 and 3);
8. Coil (Cylinder 1 and 4);
9. Soic immobilizer;
10. 5V regulator;
11. Nozzle 3 and 4.

Technical specifications
Special features
• With immobilizer.

Common defects:
• Failure to activate the fan.
Note: The Soic behind the sign, which contains the
immobilizer information has the original number 90510 and
its similar is 25020.
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Ignition coil drive

Multi drive - 1034SE001 - 30 pins - Injectors 3 and 4 -

Revolving account
Triggering by + 5 volts and output is negative.
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Multi drive - 1035SE001 - 30 pins - Canister - Injectors

1 and 2 - Fuel pump relay - Run corrector
slow - Relay A / C - V1 and V2 Cooling
Trip done by +5 volts and negative output.

Lambda probe heating control drive

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EEC IV - FORD
Vehicles: VW and Ford from 95 to 96 monoponto, with AP and CHT (AE) engines

Main components
1. Injector drive;
2. Injection diode;
3. Diagnostic control drive;
4. RAM memory;
5. Crystal / Clock;
6. ROM memory;
7. Transistor - turns on / off 5 volts;
8. Cold start drive;
9. Processor;
10. Drive fuel pump relay;
11. Stepper motor drive;
12. Quadruple Mult Drive - Canister - A / C Relay – Similar Ca 3262.
13.Transistor coil.
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Technical specifications
Special features
• The ECU does not control the ignition coil. This system
has the TFI module.
• The quadruple multi drive can be replaced by the CA 3262,
which is common in several ECUs.

Common defects
• Injector nozzle IC;
• Idle actuator CI.
Note: This car usually shortens the whip of the
nozzles and burn the CI, always check the nozzle harness
and also the idle actuator. Some vehicles
may present instability in operation even
after replacing the defective component. You must reset the
EC, passing something metallic on its pins. Thereby
it is possible to erase / reset the parameters
things that you can't get with a scanner.

Quadruple Mult Drive - Canister - A / C Relay - (IC 17) - Similar Ca 3262

This component works similarly to NPN transistors, that is, the
input (trip) is made by positive 5 volts and the output is negative.
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Stepper Motor Drive - (IC 123) - 15 pins

When this component has 5 volts at the input, it has 12
volts at the output.
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Stepper motor drive test

When the ignition of the drive is switched on, that is, we can
test them only by turning on the ignition.

Injector Drive - (IC 27B)

Triggering is done for more than 5 volts and the output is negative.
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Mult drive (IC 6)

This drive has positive powder input (trigger) and output
it is also positive.

Fuel pump drive

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Cold start drive - Alcohol vehicles

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Magneti Marelli 4CFR - Ford

Vehicles: Eco Esporte, Fiesta and Ka.

Main components
1. 5 volt regulator, pump relay and thermostatic valve;
2. SOIC, code 95320;
3. Nozzles, Canister and Idle;
4. Coil 1;
5. Coil 2.

Technical specifications
Special features
• Without distributor;
• Immobilizer integrated into the panel;
• Pin 01 to the right;
• 4X sinusoidal RPM signal;
• Eprom on the processor;
Common defects
• Does not activate the pump relay, which is probably a defect in the
bomb.
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Magneti Marelli 4AFR - Ford

Vehicles: Eco Esporte, Fiesta and Ka.

Main Components
1. Thermostatic valve. 5 volt regulator, pump relay;
2. Crystal / Clock;
3. SOIC / code;
4. Beak, Canister and Slow March;
5. Coil 2;
6. Coil 1.
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Technical specifications
Special features
• Immobilizer integrated into the panel;
• Eprom on the processor;
• 4x sinusoidal RPM signal;
• Pin 01 to the right;
• ST processor;
• Without distributor.

Common defects
• Does not activate the pump relay, probable drive defect
the pump;
• Does not trigger or is constantly activated at
fan, probable drive defect or oxidation of the
board.

Magneti Marelli 4LV – VW

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Main components
1. L9113 - Multi-function drive - 5V regulator - Relay
main - A / C relay;
2. Soic 95080;
3. Rom memory - 29F400 BC;
4. Motorola processor - ZC439620VFT25;
5. L9110 PD - Multi drive - Canister - A / C relay - Control
probe heating;
6. L9135 PD - Multi drive - Injectors - V2 Fan;
7. MC33186DH1 DC motor control drive;
8. Line 15 protection diode.

Coil
1. Coil signal amplifier transistor 1;
2. Coil signal amplifier transistor 2;
3. Set of coil signal resistors.
DC motor control drive – MC33186DH1
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LP135 PD - Multi drive - Injectors - V2 Fan

L9110 PD - Multi drive - Canister - A / C relay - Control

heating probe
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Multi-function drive - 5V Regulator - Main Relay -

A / C Relay
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Magneti Marelli 1 AVB - VW

Vehicles: With AP 1.6, 1.8 and 2.0 Ml engines DE 97 to 99. And for the old model
97/98.

Main components
1. Set of nozzle drivers;
2. Stepper motor;
3. Main processor;
4. Eprom;
5. Auxiliary processor;
6. Pump;
7. Coil;
8. 5V regulator;
9. 5V of the map / TPS.
Technical specifications
Special features
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• Eprom pin 1 facing upwards;

• Has no immobilizer;
• Pump drive - CA3262;
• Coil drive - VB 027. (Pole does not use this drive).
• Stepper motor drive - L9122.

Common defects:
• Failure in the stepper motor drive - L9122;
• Failure in the coil drive - VB027;
• Pump drive failure - CA3262;
• Map power failure - Cl 33072 (8-pin tsop)
Note: Some vehicles may show oscillation
idle speed due to voltage instability (battery
or alternator) and suspect a plant defect.

Drive CA 3262 AE - Relay A / C - Relay Fuel pump

This component works similarly to
NPN transistors , that is, the input (trip) is made by
positive 5 volts and the output is negative.
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Ignition coil drive - VB 027

Stepper motor drive - L 9122

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Stepper motor drive test with oscilloscope

Adjust the screen to 5V x 100ms.

Magneti Marelli 4SV

Vehicles: With EA 111 1.0 8V and 16 V engines.

Main components
1. Canister;
2. Stepper motor;
3. Code / Soic 95320;
4. Coils;
5. VGA processor;
6. Crystal;
7. 5V regulator;
8. Probe.
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Technical specifications
Special features
• 2nd generation of Power systems, replacing the l AW system
4LV.

Common defects
• Loss of acceleration due to problems related to
battery and alternator.
Note: Although this system replaces the 4LV system,
the exchanges are not interchangeable, due to the MAP sensor
be different.

Temic 1.74
Vehicles: Gol 2.0 GLX from 94 to 98.
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Main components
1. TLE 4216 G - Drive relay fuel pump - Coil of
ignition;
2. TLE 4262 G;
3. Lambda probe heating control drive - T30;
4. Canister drive - T30;
5. Idle corrector drive - T30;
6. __________________________________
7. MAP
8. ROM memory - 27C256;
9. Processor - Motorola – MC68HC11G5FN1.

Technical specifications
Special features
• Has the internal map

Common defects
• Fault in the idle corrector drive;
• Ignition coil drive failure;
Note: Some vehicles may show oscillation
idle due to voltage instability in the
ECU power, caused by defect in the relay
main.
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TLE 4262 G - 5 Volt Regulator

TLE 4216 - Fuel pump relay drive - Coil

ignition
In this component the drive is done by a positive 5V and
the output is negative.
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TLE 4216 G –A

TLE 4216 G – B

Injector Drive - BTS 121 A

This component is an NPN - Positive output trigger
negative.
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Transistors - T30 - Heating control of the

probe - Canister - Idle corrector

1. Probe heating control;

2. Canister;
3. Idle broker.
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1 AVP - VW
Vehicles: With AP 1.6, 1.8 and 2.0 MI engines from 99 onwards. And model pole
old 99.

Main components
1. Canister;
2. Nozzle 4;
3. Nozzle 3;
4. Nozzle 1;
5. Nozzle 2;
6. Probe;
7. Coil;
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1. 5V / TPS regulator;
2. Capacitor;
3. Stepper motor;
4. Pump relay;
5. Auxiliary processor;
6. Eprom;
7. Main processor.

Technical specifications
Special features
• Eprom pin 1 facing down;
• Has an immobilizer.

Common defects
• Failure in the stepper motor drive - L9122;
• Cold soldering on the multi-function drive - L9104 PD (20 pins
tsop) due to heating.
Note: Some vehicles may show oscillation
idle speed due to voltage instability (battery
or alternator) and suspect a plant defect.

Drives
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Ignition coil drive - VB 027

Note: The center of the Pole vehicle does not have the drive
VB 027, due to the injection system using
ignition as an external power module.
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L 9104 PD

Stepper motor drive - L 9122

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Stepper motor drive test with oscilloscope

Adjust screen to 5V x 100ms
Auxiliary Processor - GSCT - 38318 PG 06

.
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MP 9.0 - VW
Vehicles: Gol 1.0 8V MI and Kombi 1.6 8V MI

FRONT

SEE IF
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Main components
1. 5V regulator;
2. Eprom DIP;
3. Processor;
4. Knock sensor;
5. Coil;
6. Diodes;
7. Stepper motor;
8. Nozzle mult drive;
9. Jumper for defective coil repair.

Technical specifications

Special features
• There is MP9 without immobilizer, but most are with
immobilizer. The Kombi ECU is interchangeable with that of the
Goal and vice versa, as long as the programming of the
EPROM, also check the knock sensor drive.

Common defects
• Coil CI and bad grounding.
Note: Burning in the coil IC, due to lack of
grounding the ECU with the battery. We should do a
between the ECU housing, the battery negative and the
coil housing. Check that the coil heats the
ignition module, if it gets hot we should replace it or
repair it too.

B57942 or 3262 - Ignition coil,

fuel and Canister.
This component works similarly to
NPN transistors, that is, the input (trip) is made by
positive 5 volts and the output is negative.
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Mult drive injectors

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1AVI – VW
Vehicles: Gol 1.0 16V

Main components
1. 5V regulator;
2. Main processor;
3. Eprom;
4. Auxiliary processor;
5. Coil transistor;
6. Canister;
7. Stepper motor;
8. Set of nozzle drivers.

• AVS is without immobilizer and AVI with immobilizer, a lock

on the connector is the differential between one and the other. Eliminating
hangs the AVS ECU works in place of the AVI. Attention to
jumper on the ECU immobilizer.
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Common defects
• Ci sensor map heats up;
• Ci stepper motor, without fully functioning;
• Bad contact in the eprom socket;
• Ci pump and Ci coil.
Note: The eprom 27C010, or 27C1001 can be
replaced by 29F010. The main processor sends
the ignition pulse signal directly to the coil in the
front, we have two responsible SMD resistors
for “filtering” the signal, and at the bottom we have two more
47Ω resistors that also do this job.
Follow the track from pin 24 to the main processor.

4AVP - VW
Vehicles: Gol, Saveiro 1.6 flex
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1. Probe;
2. Cold start, pump relay;
3. Crystal;
4. Processor;
5. SOIC
6. Canister nozzles, stepper motor;
7. Coil 1;
8. Coil 2;
9. Cold broken relay.

Technical specifications
Special features
• Gol 1.6 8V Flex

Common defects
• Ignition coil

Note: This ECU easily corrupts the

ST processor, requiring only reprogramming
again. This processor is a fundamental part of
functioning of the ECU.
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4BV - VW
Vehicles: Fox and Gol 1.0 8V

Main components
1. Coils;
2. Electronic accelerator;
3. Nozzle / Fan / Canister / A / C;
4. Crystal;
5. BGA processor;
6. 5V regulator;
7. Capacitor;
8. Probe.
Technical specifications
Special features
• Gol 1.0 and Fox 1.6 8V
Common defects
• Ignition coil and throttle body Note: This ECU easily corrupts the
ST processor, requiring only reprogramming again.
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7.5.20 –VW
Vehicles: Goal flex.

Main components
1. Canister probe nozzles, cold start, fan;
2. Butterfly body;
3. 5V regulator.

Technical specifications

Common defects
• Cold start / nozzle drive.
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Bosch 3.8.3
Vehicles: Golf 2.0, Bora 2.0 and Gol turbo.

Main components
1. Soic 95040, Code;
2. Regulator 5 volts;
3. Probe 2;
4. Probe 1;
5. Canister;
6. Ignition complex;
7. Eprom;
8. Nozzles;
9. Idle corrector
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Technical specifications
Special features
• 3.8.2 Passat 1.8 20V.
• 3.8.3 Gol 1.0 Turbo.
5.9.2 Bora 2.0.

Common defects
• When you close a short, the trails break easily,
ignition system in the complex ECU is fragile.
• Lambda probe closes short and damages the ECU.

Bosch LE - JETRONIC
Vehicles: Gol GTI 1994 Santana Executive Kadet GS
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Main Components
1. Ignition;
2. Ignition;
3. P2IGN;
4. Visual parameters module;
5. Injector nozzles.

Technical specifications

Special features
• No communication with scanner, ignition system for
Santana and Versalles independent from the injection plant;
• Immobilizer does not exist in this system;
• Non-electronic analog processor;
• Analog non-electronic eprom;
• Injection light yes;
• RPM hall sign, distributor;
• Good trails;
• Cold welding, yes mainly in F and A;

Location: At the feet of the ride.

Application details: 007, VW line and 006, GM line.

Common defects: Cold solder across the plate, coil Ci

burnt, open beak.
Note
❖ 1 blink and a sudden cut, or a sudden failure. That is
from electromagnetic interference, probably
spark plug, cable, coil, or any other current leak.
DO NOT rule out a problem with the EZK ignition module or
even short on the whip. Another detail is the thread that goes to
the coil, it has a grounding mesh, for
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“FILTER” the signal to the coil but it is NOT going on

next to the coil signal, this generates a short.
❖ In the air flow harness, if the vehicle is shorted, it can
not get and work with a super excess and flow is
without function.
❖ The knock sensor socket is easily replaced
with that of the butterfly sensor, or even the
broken or very open detonation.
❖ If the Water temperature sensor is applied
wrong, the vehicle may have ignition pulsed at the nozzles,
however, do not use excess fuel.
❖ Weak coil, or high resistance in the cables interferes with
starting the vehicle.
❖ Electrical conductivity in the cooling water or even
alternator overload interferes with the vehicle after
of hot.

Technical Notes
Nozzle drive: Darlington transistor, NPN (code
commercial VM = TIP122 or TIR 127).
Attention, for the insulating plastic with the heat sink plate
heat, and also with the fixing clamp. Test the CI with
the multimeter in DIODOS, the measurement should be between 0.4V at
0.8V. If the nozzle transistor is blown, the
resistance will be low or short-circuit between
Collector and Emitter.
✓ A TIP31 can also be used;
✓ Remember that the CI CJ07S controls the nozzles.
If the nozzles lock open, REMOVE the plate and test the
following components, LM2902A, LM2901A and LM2902B,
can be replaced by an LM2902N (number
commercial).
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Ignition drive: Due to overheating

(usually the shorted coil causes this), the
solder are in bad contact. Another problem is the FET-drive
ignition is burnt out due to this
overheating or short in the whip. The ignition drive
on the Marelli- G7 you can even replace this drive. Following the
pin sequence A, B and C of the plate with pin 1, 2 and 3 of the
new FET.

Airflow: The car has too much fuel, or it picks up

and die. When you turn the flow off and on again, the vehicle
it works. Usually just resoldering points F and A
marked in the photo. Also check the electronic whip of the
car.

Ignition: Below FET, there is the BC547 resistor,

(NPN) that interconnects with the ignition system, EZK. The FET
ignition is isolated and commercially we can find
such as BIP109, 125B.

P1: Point where it connects with the ignition system.

It may happen to burn the resistor or the diode.

P2: Injection unit without function. When you burn the

component CJ07 the unit goes out completely, nor
nozzle and no coil.
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1. Controls nozzle pulse, and influences the ignition pulse

also, if you have a problem you can leave the nozzles
open;
2. Responsible for the beak pulse, in case of problem
beak is open too;
3. Causes excess fuel;
4. Responsible for sending signals to the air flow,
causing excess fuel;
5. Component T250 has a problem and no longer reads theair flow.
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Bosch ME 7.4.4 Petrol

Vehicles: Peugeot Citroën 1.6 16V and 1.4 16V family.

Main Components
1. 5volts regulator;
2. TPS converter;
3. Coil 1;
4. Coil 2;
5. Nozzles, electro and Canister.
Technical specifications

Special features
• Soic 95160 and psop 29f400;
• Immobilizer integrated with BSI / CSI, decodes only in
gasoline vehicles. (stops the air conditioning).
To code the entire system, the
Peugeot Citroën;
Common Defects
Check the immobilizer system carefully.
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Magneti Marelli 5NP 02

Vehicles: Peugeout Citroën Family

Main components
1. Nozzles;
2. Coil 3 and 4;
3. Coil 1 and 2;
4. Set of protective resistors for drive No. 5 (1Ω);
5. Electronic accelerator;
6. Crystal;
7. Soic 95160 / Code;
8. 5V regulator.

Common Defects
• Eco mode
• Lose acceleration
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Magneti Marelli 6LP1

Vehicles: Peugeout Citroën Family (Petrol System)

Main Components
1. Coil 1;
2. Coil 2;
3. Boboleta body;
4. Nozzles, Canister and Electro Relay;
5. 5volts regulator.
Technical specifications
Special features
• ST processor, with integrated immobilizer system;
• ECU RESET in bank 1 and 2;

Common Defects
• Check the immobilizer system carefully;
• Be careful when exchanging from 6LP1 to 6LPb,
usually something is malfunctioning.
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Magneti Marelli 6LPb

Vehicles: Peugeot Citroën Family (Gasoline Systems)

Main Components
1. Coil;
2. Coil;
3. Coil;
4. Coil;
5. Butterfly body;
6. Nozzles, Relay and Canister;
7. 5volts regulator.
Technical specifications
Special features
• ST processor, with integrated immobilizer system;
• ecu RESET in bank 1,2 and 3;
Common Defects
• Carefully check the immobilizer system on the
immobilizer repair manual;
• Be careful to exchange from 6LP1 to 6LPb, usually
something is malfunctioning.
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Magneti Marelli 5NP 01

Vehicles: Clio 1.0 16V and Peugeout 206 1000 16V.

Main Components
1. Butterfly body;
2. Electro Nozzles;
3. 5volts regulator;
4. Fan;
5. Coil 1;
6. Coil 2;
7. SOIC 95160.

Technical specifications
Special features
1. Semi hybrid;
2. Integrated with UCH, decode through procedures;
3. Pin 01 side of the connector;
4. Phased phonic RPM signal;
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Common Defects
• 5NR1 is different from 5NR2 and is not interchangeable with
5NP because of the air conditioning system.

Bosch MP7.2
Vehicles: Peugeot Citroen Gasolina Family;

Main Components
1. 5volts regulator;
2. TPS converter;
3. Idling;
4. Coil 1;
5. Coil 2;
6. Fan, Nozzle, Air conditioning and Canister.

Technical specifications
Special features
• With soic 24C02
• Immobilizer integrated with BODY, reading password at BSI,
decodes only on gasoline vehicles. To encode
Toto the system is necessary the Peugeout scanner Citroen.
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Common defects
• Carefully check the immobilizer system on the
immobilizer repair manual.
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Siemens Sirius 3134

Vehicles: Scenic, Clio and Sandero

Main Components
1. Coil 2;
2. Coil1;
3. Butterfly body;
4. 5volts regulator;
5. Nozzles.

Main Components
1. Processor.
Technical specifications
Special features
• Applied in Flex systems, some vehicles have been applied
Sirius 3132 and these are gasoline only;
• Processor integrated with UHC.
Common Defects
• Plate oxidation
• Failure of the immobilizer program (a reset must be
PSOP F400)
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Siemens - Sirius 32.

Renault

Main components
1. Injector drive - Motorola - TY94084 FB - 20 pins;
2. 5V regulator;
3. Processor;
4. Crystal - Clock - 8MHz;
5. Rom memory - 29F200 BB;
6. Multidrive - Canister - Motorola - TY94082 FB - 20 pins;
7. Ignition drive - Cylinder 1/4;
8. Ignition drive - Cylinder 2/3;
9. Multidrive - Main relay - Fuel pump relay - V1
Cooling - ST - ATM 398 - 20 pins;

10. Stepper motor drive - ST - U705 SDlC03 - 20 pins.

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Injector Drive - Motorola - TY94084 FB - 20 pins

On the bench, the injection sequence is 2 to 2.
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5V Regulator

Ignition Drives
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Multidrive - Main relay - Fuel pump relay -

V1 Cooling - ST - ATM 398 - 20 pins
Between pin 5 of the component and pin 68 of ECU. They are
protection diode.
Fuel Pump Diode

Stepper motor drive - ST - U705 SDlC03 - 20 pins

Common Defects
• Immobilizer lock (must be reset or decoded)
• Breaking of trails near the mouthpiece
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Mercedes Class A 160 and 190 - VDO MSM

Main components
1. TLE 5216 G - 20 pins - Multi drive - Pump relay -
Canister;*
2. Start control drive - line 50;
3. Crystal - 8 MHz;
4. Air flow meter; (under the terminals)
5. Processor
6. 29F200 BA - Memory Rom;
7. Crystal - 4 MHz;
8. IRSFS 3010 S - DC motor drives;
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9. TLE 5216 G - 20 pins - Multi drive of the injectors; *

10. VB 027 A - Ignition drive - Cylinder 2 and 3;
11. VB 027 A - Ignition drive - Cylinder 1 and 4;
12. LZ 24 NS - heating control of the lambda probe;
13. 4267 G / F901 - 7 pins;

Common Defects
• Start Error (from the immobilizer);
• Air mass sensor.

TLE 5216 G - 20 pins - Multi drive - Pump relay -

canister
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Ignition drive

Conclusion
Make sure that all possible tests have been carried out and all
correctly, as the module is one of the vital parts of the vehicle
and has a high repair cost!