Rear Power Seat Switch Circuit: Procedure

1. Remove the fold seat control ECU with its connectors still connected. Refer to REMOVAL [06/2012 - ] .

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the voltage according to the value(s) in the table below.
   STANDARD VOLTAGE FOR LH SIDE
   
   

   Tester Connection	Condition	Specified Condition
   d1-12 (RCLF) - Body ground	Rear power seat switch LH off	11 to 14 V
   	Rear power seat switch LH forward	Below 1 V
   d1-13 (RCLR) - Body ground	Rear power seat switch LH off	11 to 14 V
   	Rear power seat switch LH backward	Below 1 V

   STANDARD VOLTAGE RH SIDE
   
   

   Tester Connection	Condition	Specified Condition
   c1-12 (RCLF) - Body ground	Rear power seat switch RH off	11 to 14 V
   	Rear power seat switch RH forward	Below 1 V
   c1-13 (RCLR) - Body ground	Rear power seat switch RH off	11 to 14 V
   	Rear power seat switch RH backward	Below 1 V

   TEXT IN ILLUSTRATION
   
   

   *A	for LH Side
   *B	for RH Side
   *a	Component with harness connected (Fold Seat Control ECU)

NG → See step   2 

OK → See step   4 

1. Remove the rear power seat switch. Refer to REMOVAL [06/2012 - ] .

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   4 (FWD) - 6 (E)	Rear power seat switch off	10 kΩ or higher
   	Rear power seat switch forward	Below 1 Ω
   5 (BACK) - 6 (E)	Rear power seat switch off	10 kΩ or higher
   	Rear power seat switch backward	Below 1 Ω

NG → See step   5 

OK: Go to next step 

• *1: for LH Side
• *2: for RH Side

1. Disconnect the d1*1 or c1*2 ECU connector.
2. Disconnect the R14*1 or Q10*2 switch connector.
3. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE FOR LH SIDE
   
   

   Tester Connection	Condition	Specified Condition
   d1-12 (RCLF) - R14-4 (FWD)	Always	Below 1 Ω
   d1-12 (RCLF) - Body ground	Always	10 kΩ or higher
   d1-13 (RCLR) - R14-5 (BACK)	Always	Below 1 Ω
   d1-13 (RCLR) - Body ground	Always	10 kΩ or higher

   STANDARD RESISTANCE FOR RH SIDE
   
   

   Tester Connection	Condition	Specified Condition
   c1-12 (RCLF) - Q10-4 (FWD)	Always	Below 1 Ω
   c1-12 (RCLF) - Body ground	Always	10 kΩ or higher
   c1-13 (RCLR) - Q10-5 (BACK)	Always	Below 1 Ω
   c1-13 (RCLR) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6