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.

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 theft deterrent horn using TOYOTA hand-held tester.
Preparation : connect the TOYOTA hand-held tester to the DLC 3.

Check : that the theft deterrent horn sounds using ACTIVE TEST.
1. OK : Proceed to next circuit inspection shown in problem symptoms. See PROBLEM SYMPTOMS .
2. NG : Go to step 2.
Check theft deterrent horn . See THEFT DETERRENT SYSTEM .
1. NG : Replace the theft deterrent horn.
2. OK : Go to step 3.
Check wire harness and connector between theft deterrent horn 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 .