Inspection Procedure

1. Disconnect the position control ECU and switch assembly connectors.
2. Measure the voltage according to the value(s) in the table below.

   Voltage 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   P33-5(+B) - Body ground	Always	10 to 14 V
   P32-4(IG) - Body ground	Ignition switch on	10 to 14 V
   P32-8(SYSB) - Body ground	Always	10 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

Fig 1: Identifying Position Control ECU And Switch Assembly Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

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

   Resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   P33-1(GND) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT) 

Fig 2: Identifying Power Seat Control Switch Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE