Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

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

Check lamp failure sensor using hand-held tester.
PREPARATION:

Connect the hand-held tester to the DLC 3.

CHECK:

Remove either bulb of the stop light high mount stop light or tail light, and check the operation of the lamp failure sensor with DATA LIST.

Fig 1: Lamp Failure Sensor Data List
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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 lamp failure sensor and Body ECU No. 2.
1. NG: Repair or replace wire harness or connector.
2. OK: Go to next step.
  Proceed to next circuit inspection shown on problem symptoms table. (See PROBLEM SYMPTOMS TABLE )