Inspection Procedure

1. Remove the FR P/SEAT LH and ECU-B2 fuses from the main body ECU.
2. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   FR P/SEAT LH fuse	Always	Below 1 Ω
   ECU-B2 fuse	Always	Below 1 Ω

NG: REPLACE FUSE 

OK: Go to next step. 

1. Disconnect the c14 and c15 switch connectors.
2. Measure the voltage according to the value (s) in the table below.

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   c14-5 (+B) - Body ground	Always	11 to 14 V
   c15-8 (SYSB) - Body ground	Always	11 to 14 V

3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   c14-1 (GND) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 1: Identifying Position Control ECU And Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE POSITION CONTROL ECU AND SWITCH  (See POWER SEAT SWITCH (FRONT PASSENGER SIDE)  )