Diagnosis Procedure
WARNING: This page is about a different car, the 2013 Nissan Armada. 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 (FRONT) SIGNAL
- Turn ignition switch OFF.
- Read the voltage signal between driver seat control unit harness connector and ground with an oscilloscope.
Terminals Condition Voltage signal (+) (-) Driver seat control unit connector Terminal B202 25 Ground Seat lifting (front) Operate Other than above 0 or 5 Is the inspection result normal?
YES: GO TO 4
NO: GO TO 2
- CHECK LIFTING SENSOR (FRONT) CIRCUIT
- Disconnect driver seat control unit and lifting motor (front).
- Check continuity between driver seat control unit harness connector and lifting motor (front) harness connector.
Driver seat control unit connector Terminal Lifting motor (front) connector Terminal Continuity B202 (A) 16 B206 (B) 3 Yes 25 4 31 2 - Check continuity between driver seat control unit harness connector and ground.
Driver seat control unit connector Terminal Ground Continuity B202 (A) 16 No 25 31 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 (front) connector.
- Check seat operation [except lifting (front) operation] with memory function.
Is the operation normal?
YES: Replace lifting motor (front). (Built in power seat frame assembly). Refer to "DISASSEMBLY AND ASSEMBLY ".
NO: Replace driver seat control unit. Refer to "REMOVAL AND INSTALLATION ".
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
Is the inspection result normal?
YES: Replace driver seat control unit. Refer to "REMOVAL AND INSTALLATION ".
NO: Repair or replace the malfunctioning part.