Power Source Circuit: Procedure

1. for LH Side:

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Disconnect the d1 and d2 ECU connectors.

2. for RH Side:

   Disconnect the c1 and c2 ECU connectors.

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

   Tester Connection	Condition	Specified Condition
   d2-2 (+B) - Body ground	Always	11 to 14 V
   d1-1 (ECUB) - Body ground	Always	11 to 14 V
   d1-3 (IG) - Body ground	Engine switch off	Below 1 V
   	Engine switch on (IG)	11 to 14 V

   STANDARD VOLTAGE FOR RH SIDE
   
   

   Tester Connection	Condition	Specified Condition
   c2-2 (+B) - Body ground	Always	11 to 14 V
   c1-1 (ECUB) - Body ground	Always	11 to 14 V
   c1-3 (IG) - Body ground	Engine switch off	Below 1 V
   	Engine switch on (IG)	11 to 14 V

4. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE FOR LH SIDE
   
   

   Tester Connection	Condition	Specified Condition
   d2-10 (GND) - Body ground	Always	Below 1 Ω
   d2-9 (GND2) - Body ground	Always	Below 1 Ω

   STANDARD RESISTANCE FOR RH SIDE
   
   

   Tester Connection	Condition	Specified Condition
   c2-10 (GND) - Body ground	Always	Below 1 Ω
   c2-9 (GND2) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *A	for LH Side
   *B	for RH Side
   *a	Front view of wire harness connector (to Fold Seat Control ECU)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   2