Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Celica. However, it is still accessible from the selected car via links, so may be relevant.

Check MPX-B, ACC, AM1 and DOOR fuse.
CHECK:

Check continuity of MPX-B, ACC, AM1 and DOOR fuse.

OK:

Continuity
1. NG : Replace the failure fuse.
2. OK : Go to next step.
Check voltage between terminals B, B and E of Body ECU connector.
PREPARATION:
1. Turn ignition switch OFF.
2. Disconnect the Body ECU connector.
CHECK:

Measure the voltage between terminal B, B and E.

OK:

Voltage: 10 - 14V
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 : Check and repair wire harness and connector between Body ECU and battery.