Motor Sensor

MOTOR SENSOR:_:LH





Description
Detect the operation condition of power return motor (LH).




Component Function Check
1.CHECK FUNCTION
Check that the rear seatback (LH) rises when pressing and holding the power return switch (LH) or rear seatback switch (LH) in UP direction.
Is the inspection result normal?
YES - Motor sensor (LH) is OK.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK MOTOR SENSOR (LH) OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between rear seatback power return control unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 7.
NO - GO TO 2.
2.CHECK MOTOR SENSOR (LH) SIGNAL CIRCUIT
1. Disconnect power return motor assembly (LH) connector and rear seatback power return control unit connector.
2. Check continuity between power return motor assembly (LH) harness connector and rear seatback power return control unit harness connector.





3. Check continuity between power return motor assembly (LH) harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK MOTOR SENSOR (LH) POWER SUPPLY
1. Connect rear seatback power return control unit connector.
2. Check voltage between power return motor assembly (LH) harness connector and ground.





Is the inspection result normal?
YES - GO TO 5.
NO - GO TO 4.
4.CHECK MOTOR SENSOR (LH) POWER SUPPLY CIRCUIT
1. Disconnect rear seatback power return control unit connector.
2. Check continuity between rear seatback power return control unit harness connector and power return motor assembly (LH) harness connector.





3. Check continuity between rear seatback power return control unit harness connector and ground.





Is the inspection result normal?
YES - Replace rear seatback power return control unit. Removal And Installation.
NO - Repair or replace harness.
5.CHECK MOTOR SENSOR (LH) GROUND CIRCUIT 1
1. Disconnect rear seatback power return control unit connector.
2. Check continuity between power return motor assembly harness connector and ground.





Is the inspection result normal?
YES - GO TO 6.
NO - Repair or replace harness.
6.CHECK MOTOR SENSOR (LH) GROUND CIRCUIT 2
1. Connect rear seatback power return control unit connector.
2. Check continuity between rear seatback power return control unit harness connector and ground.





Is the inspection result normal?
YES - Replace motor sensor (LH) [seat device assembly (LH)]. Exploded View.
NO - Replace rear seatback power return control unit. Removal And Installation.
7.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END