ECU Power Source Circuit: Procedure

1. Disconnect the position control ECU and switch assembly connectors.
   Fig 1: Identifying Position Control ECU & Switch Assembly Connectors

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2. Measure the voltage according to the value(s) in the table below.

   Standard voltage

   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) 

OK: Go to next step 

1. Measure the resistance according to the value(s) in the table below.
   Fig 2: Identifying Power Seat Control Switch & ECU Ground Terminal

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   Standard resistance

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

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

OK → OTHERS PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE