Lifting Motor (Front) Circuit Inspection

AUTOMATIC DRIVE POSITIONER


Lifting Motor (Front) Circuit Inspection

1.CHECK FRONT END SEAT LIFTING MECHANISM
Check the following.
- Operation malfunction caused by lifter mechanism deformation, pinched harness or other foreign materials
- Operation malfunction caused by foreign materials adhered to the lifting motor (front) or lead screws
- Operation malfunction and interference with other parts by installation
OK or NG
OK - GO TO 2.
NG - Repair the malfunctioning part and check again.
2.CHECK FUNCTION
With CONSULT-III
Check operation with "SEAT LIFTER FR" in ACTIVE TEST.





Without CONSULT-III
GO TO 3.
OK or NG
OK - Lifting motor (front) circuit is OK.
NG - GO TO 3.
3.CHECK LIFTING MOTOR (FRONT) CIRCUIT HARNESS CONTINUITY





1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and lifting motor (front).
3. Check continuity between driver seat control unit connector B402 terminals 37, 45 and lifting motor (front) connector B405 terminals 4, 6.






4. Check continuity between driver seat control unit connector B402 terminals 37, 45 and ground.






OK or NG
OK - GO TO 4.
NG - Repair or replace harness.
4.CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL





1. Connect the driver seat control unit and lifting motor (front).
2. Check voltage between driver seat control unit connector and ground.






OK or NG
OK - Replace lifting motor (front). Refer to Lifter Motor.
NG - Replace driver seat control unit. Refer to Removal And Installation.