DTC 12: Front-rear Slide Motor Malfunction: Procedure

1. Disconnect the Q10 power seat motor assembly (front-rear slide motor) connector.
   Fig 1: Checking Q10 Power Seat Motor Assembly (Front-Rear Slide Motor)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   Q10-1 (FMFR) - Body ground	Power seat switch assembly (front slide switch) off → on	Below 1 V → 11 to 14 V
   	No. 2 power seat switch assembly (front slide switch) off → on	Below 1 V → 11 to 14 V
   Q10-2 (FMRR) - Body ground	Power seat switch assembly (rear slide switch) off → on	Below 1 V → 11 to 14 V
   	No. 2 power seat switch assembly (rear slide switch) off → on	Below 1 V → 11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Power Seat Motor Assembly (Front-rear Slide Motor))

3. Reconnect the power seat motor assembly (front-rear slide motor) connector.

NG → See step   2 

OK → See step   3 

1. Disconnect the Q4 position control ECU assembly connector.
2. Disconnect the Q10 power seat motor assembly (front-rear slide motor) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Q4-9 (SLFR) - Q10-1 (FMFR)	Always	Below 1 Ω
   Q4-3 (SLBC) - Q10-2 (FMRR)	Always	Below 1 Ω
   Q4-9 (SLFR) - Body ground	Always	10 kΩ or higher
   Q4-3 (SLBC) - Body ground	Always	10 kΩ or higher

4. Reconnect the power seat motor assembly (front-rear slide motor) connector.
5. Reconnect the position control ECU assembly connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   4