Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Check headlight dimmer switch . See INSPECT HEADLIGHT DIMMER SWITCH CONTINUITY .
1. NG : Replace the headlight dimmer switch.
2. OK : Go to step 2.
Check wire harness and connector between headlight dimmer switch and Body ECU . See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS .
1. NG : Repair or replace wire harness or connector.
2. OK : Proceed to next circuit inspection shown in problem symptoms. See PROBLEM SYMPTOMS .