ECU Power Source Circuit: Procedure

1. Disconnect the front power seat switch connectors.
   Fig 1: Inspecting Position Control ECU And Wiring Assembly (Front Power Seat Switch Power Source Circuit)

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

   Voltage

   Tester Connection	Condition	Specified Condition
   P14-5 (+B) - Body ground	Always	10 to 14 V
   P13-4 (IG) - Body ground	Ignition switch on (IG)	10 to 14 V
   P13-8 (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 Front Power Seat Switch Connector

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   Resistance

   Tester Connection	Condition	Specified Condition
   P14-1 (GND) - Body ground	Always	Below 1 Ω

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

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