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.
Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".
- CHECK LIFTING SENSOR (REAR) SIGNAL
- Turn ignition switch OFF.
- Read voltage signal between driver seat control unit harness connector and ground with oscilloscope.
Terminals Condition Voltage signal (+) (-) Driver seat control unit connector Terminal B202 10 Ground Seat lifting (rear) Operate Other than above 0 or 5 Courtesy of NISSAN NORTH AMERICA, INC.
Is the inspection result normal?
YES: GO TO 4
NO: GO TO 2
- CHECK LIFTING SENSOR (REAR) CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit and lifting motor (rear).
- Check the continuity between driver seat control unit harness connector and lifting motor (rear) harness connector.
Driver seat control unit connector Terminal Lifting motor (rear) connector Terminal Continuity B202 (A) 10 B207 (B) 4 Yes 16 3 31 2 - Check the continuity between driver seat control unit harness connector and ground.
Driver seat control unit connector Terminal Ground Continuity B202 (A) 10 No 16 31 Fig 2: Checking Continuity Between Driver Seat Control Unit Harness Connector B202 And Lifting Motor (Rear) Harness Connector B207Courtesy of NISSAN NORTH AMERICA, INC.
Is the inspection result normal?
YES: GO TO 3
NO: Repair or replace harness.
- CHECK SEAT OPERATION
- Connect driver seat control unit and lifting motor (rear) connector.
- Check the seat operation [except lifting (rear) operation] with memory function.
Is the operation normal?
YES: Replace lifting motor (rear). Refer to "EXPLODED VIEW ".
NO: Replace driver seat control unit. Refer to "EXPLODED VIEW ".
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
Is the inspection result normal?
YES: Replace driver seat control unit. Refer to "EXPLODED VIEW ".
NO: Repair or replace the malfunctioning part.