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 engine hood courtesy switch using TOYOTA hand-held tester.
Preparation connect the TOYOTA hand-held tester to the DLC 3.

Check the engine hood courtesy switch using DATA LIST.
1. OK : Proceed to next circuit inspection shown in problem symptoms. See PROBLEM SYMPTOMS .
2. NG : Go to step 2.
Check engine hood courtesy switch.
Preparation:
1. Remove engine hood lock assembly.
2. Disconnect engine hood courtesy switch connector.
Check continuity between terminals 1 and 2 when engine hood lock is locked and unlocked.

OK :

Fig 1: Identifying Engine Hood Courtesy Switch Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Engine Hood Courtesy Switch Terminal Specifications
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG : Replace engine hood courtesy switch.
2. OK : Go to step 3.
Check harness and connector between body ECU and switch, switch and body ground . See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS .
1. NG : Repair or replace harness or connector.
2. OK : Proceed to next circuit inspection shown in problem symptoms. See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS .