Power Source Circuit: Procedure

1. Remove the body ECU from instrument panel J/B.
   Fig 1: Identifying Instrument Panel J/B Connector Terminals

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

   Resistance

   Tester Connection	Condition	Specified Condition
   4 (GND2) - Body ground 5 (GND1) - Body ground	Always	Below 1 Ω

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

   Voltage

   Tester Connection	Condition	Specified Condition
   26 (BECU) - Body ground	Always	10 to 14 V
   22 (ACC) - Body ground	Ignition switch on (ACC)	10 to 14 V
   15 (IG) - Body ground	Ignition switch on (IG)	10 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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