Inspection Procedure

WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: In case of using the TOYOTA hand-held tester, start the inspection from step 1 and in case of not using the TOYOTA hand-held tester, start from step 2.

Check key unlock warning buckle switch using TOYOTA hand-held tester.
PREPARATION:

Connect the TOYOTA hand-held tester to the DLC 3.

CHECK:

Check the key unlock warning switch using DATA LIST.
1. OK : Proceed to next circuit inspection shown in PROBLEM SYMPTOMS TABLE .
2. NG : Go To Next Step.
Check key unlock warning switch (See INSPECTION ).
1. NG : Replace the key unlock warning switch.
2. OK : Go To Next Step.
Check wire harness and connector between key unlock warning switch and Body ECU (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 in PROBLEM SYMPTOMS TABLE .