DTC P2135 TP SENSOR
DTC P2135 TP SENSOR PFP:16119
Component Description ABS00CYD
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
PBIB0145E
CONSULT-II Reference Value in Data Monitor Mode ABS00CYE
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
Ignition switch: ON
THRTL SEN 1 Accelerator pedal: Fully released More than 0.36V
(Engine stopped)
THRTL SEN 2*
Shift lever: D (A/T), 1ST (M/T) Accelerator pedal: Fully depressed Less than 4.75V
*: Throttle position sensor 2 signal is converted by ECM internally. Thus, they differs from ECM terminal voltage signal.
On Board Diagnosis Logic ABS00CYF
This self-diagnosis has the one trip detection logic.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
Harness or connector
(The TP sensor 1 and 2 circuit is open or
shorted.)
Throttle position sensor Rationally incorrect voltage is sent to ECM (The APP sensor 2 circuit is shorted.)
P2135
circuit range/perfor- compared with the signals from TP sensor 1
2135 Electric throttle control actuator
mance problem and TP sensor 2.
(TP sensor 1 and 2)
Accelerator pedal position sensor
(APP sensor 2)
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up.
Engine operation condition in fail-safe mode
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.
DTC Confirmation Procedure ABS00CYG
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
Revision: 2005 March EC-570 2005 X-Trail
DTC P2135 TP SENSOR
3. Start engine and let it idle for 1 second. A
4. If DTC is detected, go to EC-574, "Diagnostic Procedure" .
EC
SEF058Y
D
WITH GST
Revision: 2005 March EC-571 2005 X-Trail
DTC P2135 TP SENSOR
Wiring Diagram ABS00CYH
TBWB0132E
Revision: 2005 March EC-572 2005 X-Trail
DTC P2135 TP SENSOR
Specification data are reference values and are measured between each terminal and ground.
CAUTION: A
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI- WIRE EC
ITEM CONDITION DATA (DC Voltage)
NAL NO. COLOR
Sensor power supply
47 R [Ignition switch: ON] Approximately 5V
(Throttle position sensor) C
[Ignition switch: ON]
Engine stopped
More than 0.36V
Shift lever: D (A/T), 1ST (M/T) D
Accelerator pedal: Fully released
50 W Throttle position sensor 1
[Ignition switch: ON]
E
Engine stopped
Less than 4.75V
Shift lever: D (A/T), 1ST (M/T)
Accelerator pedal: Fully depressed
F
[Engine is running]
Sensor ground
66 B Warm-up condition Approximately 0V
(Throttle position sensor)
Idle speed G
[Ignition switch: ON]
Engine stopped
Less than 4.75V
Shift lever: D (A/T), 1ST (M/T) H
Accelerator pedal: Fully released
69 R Throttle position sensor 2
[Ignition switch: ON]
Engine stopped I
More than 0.36V
Shift lever: D (A/T), 1ST (M/T)
Accelerator pedal: Fully depressed
J
Sensor power supply
91 BR/Y (Accelerator pedal posi- [Ignition switch: ON] Approximately 5V
tion sensor 2)
K
Revision: 2005 March EC-573 2005 X-Trail
DTC P2135 TP SENSOR
Diagnostic Procedure ABS00D8V
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer to EC-162, "Ground Inspection" .
PBIB2353E
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
Revision: 2005 March EC-574 2005 X-Trail
DTC P2135 TP SENSOR
2. CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT-I A
1. Disconnect electric throttle control actuator harness connector.
2. Turn ignition switch ON.
EC
D
PBIB2339E
3. Check voltage between electric throttle control actuator terminal E
1 and ground with CONSULT-II or tester.
Voltage: Approximately 5V
F
OK or NG
OK >> GO TO 7.
NG >> GO TO 3. G
PBIB0082E
H
3. CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT-II
I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between electric throttle control actuator terminal 1 and ECM terminal 47. J
Refer to Wiring Diagram.
Continuity should exist.
K
OK or NG
OK >> GO TO 4.
NG >> Repair or replace open circuit.
L
4. CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT-III
Check harness for short to power and short to ground, between the following terminals. M
ECM terminal Sensor terminal Reference Wiring Diagram
47 Electric throttle control actuator terminal 1 EC-572
91 APP sensor terminal 4 EC-564
OK or NG
OK >> GO TO 5.
NG >> Repair short to ground or short to power in harness or connectors.
5. CHECK APP SENSOR
Refer to EC-569, "Component Inspection" .
OK or NG
OK >> GO TO 11
NG >> GO TO 6.
Revision: 2005 March EC-575 2005 X-Trail
DTC P2135 TP SENSOR
6. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-88, "Accelerator Pedal Released Position Learning" .
3. Perform EC-88, "Throttle Valve Closed Position Learning" .
4. Perform EC-88, "Idle Air Volume Learning" .
>> INSPECTION END
7. CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between electric throttle control actuator terminal 5 and ECM terminal 66.
Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between the following;
electric throttle control actuator terminal 4 and ECM terminal 50,
electric throttle control actuator terminal 2 and ECM terminal 69.
Refer to Wiring Diagram.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK THROTTLE POSITION SENSOR
Refer to EC-577, "Component Inspection" .
OK or NG
OK >> GO TO 11.
NG >> GO TO 10.
10. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-88, "Throttle Valve Closed Position Learning" .
3. Perform EC-88, "Idle Air Volume Learning" .
>> INSPECTION END
11. CHECK INTERMITTENT INCIDENT
Refer to EC-154, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Revision: 2005 March EC-576 2005 X-Trail
DTC P2135 TP SENSOR
Component Inspection ABS00CYJ
THROTTLE POSITION SENSOR A
1. Reconnect all harness connectors disconnected.
2. Perform EC-88, "Throttle Valve Closed Position Learning" .
3. Turn ignition switch ON. EC
4. Set shift lever to D (A/T) or 1st (M/T) position.
5. Check voltage between ECM terminals 50 (TP sensor 1), 69 (TP
sensor 2) and ground under the following conditions. C
Terminal Accelerator pedal Voltage
50 Fully released More than 0.36V D
(Throttle position sensor 1) Fully depressed Less than 4.75V
69 Fully released Less than 4.75V
E
(Throttle position sensor 2) Fully depressed More than 0.36V
6. If NG, replace electric throttle control actuator and go to the next
step. PBIB1060E
F
7. Perform EC-88, "Throttle Valve Closed Position Learning" .
8. Perform EC-88, "Idle Air Volume Learning" .
Remove and Installation ABS00CYK
G
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EM-16, "INTAKE MANIFOLD" .
H
Revision: 2005 March EC-577 2005 X-Trail
DTC P2138 APP SENSOR
DTC P2138 APP SENSOR PFP:18002
Component Description ABS00CYL
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometers which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
In addition, these sensors detect the opening and closing speed of
the accelerator pedal and feed the voltage signals to the ECM. The
ECM judges the current opening angle of the accelerator pedal from
these signals and controls the throttle control motor based on these
signals.
PBIB1741E
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for the engine oper-
ation such as fuel cut.
CONSULT-II Reference Value in Data Monitor Mode ABS00CYM
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
Ignition switch: ON Accelerator pedal: Fully released 0.5 - 1.0V
ACCEL SEN 1
(Engine stopped) Accelerator pedal: Fully depressed 4.0 - 4.7V
Ignition switch: ON Accelerator pedal: Fully released 0.3 - 1.2V
ACCEL SEN 2*
(Engine stopped) Accelerator pedal: Fully depressed 3.9 - 4.8V
Ignition switch: ON Accelerator pedal: Fully released ON
CLSD THL POS
(Engine stopped) Accelerator pedal: Slightly depressed OFF
*: Accelerator pedal position sensor 2 signal is converted by ECM internally. Thus, they differs from ECM terminal voltage signal.
On Board Diagnosis Logic ABS00CYN
This self-diagnosis has the one trip detection logic.
NOTE:
If DTC P2138 is displayed with DTC P1229, first perform the trouble diagnosis for DTC P1229. Refer to
EC-499 .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
Harness or connector
(The APP sensor 1 and 2 circuit is open
Accelerator pedal posi- or shorted.)
Rationally incorrect voltage is sent to ECM (The TP sensor circuit is shorted.)
P2138 tion sensor circuit
compared with the signals from APP sensor 1
2138 range/performance Accelerator pedal position sensor
and APP sensor 2.
problem (APP sensor 1 and 2)
Electric throttle control actuator
(TP sensor 1 and 2)
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up.
Engine operating condition in fail-safe mode
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.
Revision: 2005 March EC-578 2005 X-Trail
