Diagnosis Procedure
WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK GROUND CONNECTIONS
- Turn ignition switch OFF.
- Loosen and retighten three ground three screws on the body. Refer to "GROUND INSPECTION ".
OK or NG
OK: GO TO 2.
NG: Repair or replace ground connections.
- CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
- Disconnect accelerator pedal position (APP) sensor harness connector.
- Turn ignition switch ON.
- Check voltage between APP sensor terminal 2 and ground with CONSULT or tester.
Voltage: Approximately 5V
OK or NG
OK: GO TO 5.
NG: GO TO 3.
- CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
ECM terminal Sensor terminal Reference Wiring Diagram 48 EVAP control system pressure sensor terminal 3 WIRING DIAGRAM 49 Refrigerant pressure sensor terminal 3 Battery current sensor terminal 1 68 PSP sensor terminal 3 90 APP sensor terminal 2 OK or NG
OK: GO TO 4.
NG: Repair short to ground or short to power in harness or connectors.
- CHECK COMPONENTS
Check the following.
- EVAP control system pressure sensor (Refer to "COMPONENT INSPECTION ".)
- Refrigerant pressure sensor (Refer to "COMPONENT DESCRIPTION ".)
- Battery current sensor (Refer to "COMPONENT INSPECTION ".)
- Power steering pressure sensor (Refer to "COMPONENT INSPECTION ".)
OK or NG
OK: GO TO 5.
NG: Replace malfunctioning component.
- CHECK APP SENSOR
Refer to "COMPONENT INSPECTION ".
OK or NG
OK: GO TO 7.
NG: GO TO 6.
- REPLACE ACCELERATOR PEDAL ASSEMBLY
Replace accelerator pedal assembly. Refer to "REMOVAL AND INSTALLATION ".
INSPECTION END
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
INSPECTION END