2005 NISSAN X-TRAIL P0123

EC-1460
[YD (WITHOUT EURO-OBD)]
DTC P0122, P0123 APP SENSOR

2. CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition switch ON.
3. Check voltage between APP sensor terminal 6 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3. CHECK APP SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between APP sensor terminal 3 and ECM terminal 84.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 83 and APP sensor terminal 5.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK APP SENSOR
Refer to EC-1461, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace accelerator pedal assembly.
PBIB1893E
Voltage: Approximately 5.3V
PBIB0914E
Continuity should exist.
Continuity should exist.

DTC P0122, P0123 APP SENSOR
EC-1461
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

6. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS011ZA
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 83 (APP sensor 1 sig-
nal), 91 (APP sensor 2 signal) and ground under the following
conditions.
4. If NG, replace accelerator pedal assembly.
Removal and InstallationEBS011ZB
ACCELERATOR PEDAL
Refer to ACC-2, "ACCELERATOR CONTROL SYSTEM" .
Terminal Accelerator pedal Voltage
83
(Accelerator pedal position
sensor 1)Fully released 0.5 - 1.0V
Fully depressed 4.2 - 5.2V
91
(Accelerator pedal position
sensor 2)Fully released 0.4 - 0.7V
Fully depressed 2.2 - 2.7V
MBIB0615E

ACC-2
ACCELERATOR CONTROL SYSTEM

ACCELERATOR CONTROL SYSTEMPFP:18005
Removal and InstallationEBS00KP5
REMOVAL
1. Disconnect accelerator pedal position sensor harness connector.
2. Loosen nuts, and remove accelerator pedal assembly.
CAUTION:

Do not disassemble accelerator pedal assembly. Do not remove accelerator pedal position sen-
sor from accelerator pedal assembly.

Avoid impact from dropping etc. during handling.

Be careful to keep accelerator pedal assembly away from water.

Do not adjust adjusting screw (painted white).
INSTALLATION
Installation is the reverse order of removal.
INSPECTION AFTER INSTALLATION

Make sure that accelerator pedal moves smoothly within the whole operation range.

Make sure that accelerator pedal securely returns to the original position.

For the electrical inspection of accelerator pedal position sensor, refer to EC-409, "DTC P2122, P2123
APP SENSOR" (QR20DE and QR25DE) or EC-1099, "DTC P0122, P0123 APP SENSOR" (YD22DDTi).
CAUTION:
When the harness connector of the accelerator pedal position sensor is disconnected, perform
“Accelerator Pedal Released Position Learning”. (QR20DE and QR25DE) Refer to EC-46, "
Acceler-
ator Pedal Released Position Learning" (WITH EURO-OBD) or EC-559, "Accelerator Pedal
Released Position Learning" (WITHOUT EURO-OBD).
NOTE:
In the case of YD22DDTi, it is unnecessary to perform “Accelerator Pedal Released Position Learning”
even when disconnecting the harness connector of the accelerator pedal position sensor.
1. Accelerator pedal assembly
PBIC2412E