Inspection Procedure

Check voltage between terminals +B/BDL and GND1/GND2 of passenger side J/B ECU connector.
PREPARATION:
1. Turn the ignition switch OFF.
2. Disconnect the passenger side J/B ECU connector.
CHECK:

Measure the voltage between terminals +B/BDL and GND1/GND2.

OK:

Voltage: 9 - 14 V

OK: Proceed to next circuit inspection shown in (See PROBLEM SYMPTOMS TABLE ).

NG: Go To Next Step.
Check DOME, CUT and DOOR fuses.
PREPARATION:

Remove the DOME, CUT and DOOR fuses from the engine room J/B.

CHECK:

Check the continuity of the DOME, CUT and DOOR fuses.

Fig 1: Identifying Dome, Cut & Door Fuses
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Continuity

NG: Replace faulty fuse.

OK: Go To Next Step.
Check for harness and connector between passenger side J/B ECU and body ground (See page HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
NG: Repair or replace harness or connector.

OK: Check and repair harness or connector between passenger side J/B ECU and battery (See page HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).