Diagnostic Procedure

1. Turn ignition switch OFF.
2. Loosen and retighten four ground screws on the body. Refer to GROUND INSPECTION .
   Fig 1: Checking Ground Connections

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

• OK: GO TO  2.
• NG: Repair or replace ground connections.

1. Disconnect PSP sensor harness connector.
2. Turn ignition switch ON.
   Fig 2: Disconnecting PSP Sensor Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check voltage between PSP sensor terminal 3 and ground with CONSULT-II or tester.

   Voltage: Approximately 5 V 

OK or NG

• OK: GO TO  3.
• NG: Repair open circuit or short to ground or short to power in harness or connectors.
  Fig 3: Checking Voltage Between PSP Sensor Terminal 3 & Ground

  Courtesy of NISSAN MOTOR CO., U.S.A.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between PSP sensor terminal 1 and ECM terminal 67. Refer to WIRING DIAGRAM - PS/SEN .

   Continuity should exist. 

4. Also check harness for short to ground or 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.

1. Check harness continuity between ECM terminal 12 and PSP sensor terminal 2.

   Continuity should exist. 

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.

Refer to COMPONENT INSPECTION .

OK or NG

• OK: GO TO  6.
• NG: Replace PSP sensor.

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .

• : INSPECTION END