Diagnosis Procedure

LIFTING MOTOR (FRONT)


Description

- The lifting motor (front) is installed to the power seat frame assembly.
- The lifting motor (front) is activated with the driver seat control unit.
- The lifter (front) is moved upward/downward by changing the rotation direction of lifting motor (front).





LIFTING MOTOR (FRONT)


Diagnosis Procedure

1. CHECK LIFTING MOTOR (FRONT) POWER SUPPLY





1. Turn the ignition switch OFF.
2. Perform "Active test" ("SEAT LIFTER FR") with CONSULT-III.
3. Check voltage between driver seat control unit harness connector and ground.





Is the inspection result normal?
YES - Replace lifting motor (front). (Built in power seat frame assembly). Refer to Disassembly and Assembly.
NO - GO TO 2
2. CHECK LIFTING MOTOR (FRONT) CIRCUIT





1. Disconnect driver seat control unit and lifting motor (front).
2. Check continuity between driver seat control unit harness connector and lifting motor (front) harness connector.





3. Check continuity between driver seat control unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace harness.
3. CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
Is the inspection result normal?
YES - Replace driver seat control unit. Refer to Driver Seat Control Unit.
NO - Repair or replace the malfunctioning part.