Check Rear Lifting Motor Circuit

Check the following.

• Operation malfunction caused by lifter mechanism deformation or pinched harness or other foreign materials
• Operation malfunction caused by foreign materials adhered to the rear lifting motor or lead screws
• Operation malfunction and interference with other parts by poor installation

OK or NG 

OK: GO TO 2.

NG: Repair or replace the malfunctioning part and check again.

With CONSULT-II 

Check operation with "SEAT LIFTER RR" in ACTIVE TEST.

OK or NG 

OK: Rear lifting motor circuit is OK.

NG: GO TO 3.

Fig 1: CONSULT II Display - ACTIVE TEST

1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and rear lifting motor connector.
3. Check continuity between driver seat control unit connector and rear lifting motor connector.
   CONTINUITY SPECIFICATION
   
   

   A		B		Continuity
   Driver seat control unit connector	Terminal	Rear lifting motor connector	Terminal
   B205	38	B210	38	Yes
   	39		39

4. Check continuity between driver seat control unit connector and ground.
   CONTINUITY SPECIFICATION
   
   

   A		Ground	Continuity
   Driver seat control unit connector	Terminal
   B205	38		No
   	39

   Fig 2: Checking Continuity Between Driver Seat Control Unit Connector And Rear Lifting Motor Connector

   

OK or NG 

OK: GO TO 4.

NG: Repair or replace harness.

1. Connect the driver seat control unit connector.
2. Check voltage between driver seat control unit connector and ground.
   VOLTAGE SPECIFICATION
   
   

   Driver seat control unit connector	Terminals		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   B205	38	Ground	Lifting switch (rear) ON (UP operation)	Battery voltage
   			Other than above	0
   	39		Lifting switch (rear) ON (DOWN operation)	Battery voltage
   			Other than above	0

   Fig 3: Checking Voltage Between Driver Seat Control Unit Connector And Ground

   

OK or NG 

OK: Replace rear lifting motor.

NG: Replace driver seat control unit.