Inspection Procedure

Check ACC, ECU-IG1 fuse.
CHECK:

Check continuity of ACC, ECU-IG1 fuse.

OK: Go to Next Step
1. Continuity
1. NG: Replace faulty fuse.
2. OK: Go to Next Step
Check voltage between terminals ACC, SIG and GND1, 2 of Body ECU connector.
PREPARATION:

Turn the ignition switch ON.

CHECK:

Measure the voltage between terminals ACC, SIG and GND1, 2.

OK: Go to Next Step
1. Voltage: 10-14 V
1. OK: Proceed to next circuit inspection shown on problem symptoms table (See PROBLEM SYMPTOMS TABLE ).
2. NG: Go to Next Step
Check wire harness and connector between Body ECU and body ground (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
1. NG: Repair or replace wire harness or connector.
2. OK: Proceed to next circuit inspection shown on problem symptoms table (See PROBLEM SYMPTOMS TABLE ).