Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

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

Check headrest limit switch using LEXUS hand-held tester.
PREPARATION:

Connect the LEXUS hand-held tester to the DLC3.

CHECK:

Check the headrest limit switch using DATA LIST.
1. OK : Proceed to next circuit inspection shown on problem symptom table (See PROBLEM SYMPTOMS TABLE ).
2. NG : Go to next step.
Check headrest limit switch (See INSPECTION ).
1. NG : Replace limit switch.
2. OK : Go to next step.
Check harness and connector between rear LH seat ECU and limit switch, limit switch and body ground (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
1. OK : Repair or replace harness or connector.
2. NG : Proceed to next circuit inspection shown in problem symptoms table (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).