Inspection Procedure

WARNING: This page is about a different car, the 2003 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:

Check the engine hood courtesy switch using DATA LIST.
1. OK : Proceed to next circuit inspection shown in PROBLEM SYMPTOMS TABLE .
2. NG : Go To Next Step.

Check engine hood courtesy switch.

PREPARATION:

Remove engine hood lock assembly.
Disconnect engine hood courtesy switch connector.

CHECK:

Check continuity between terminals 1 and 2 when engine hood lock is locked and unlocked.

OK:

LOCKED AND UNLOCKED CONTINUITY REFERENCE

Engine hood lock	Tester connection	Specified condition
LOCK	1 - 2	No Continuity
UNLOCK	1 - 2	Continuity

Fig 1: Checking Engine Hood Courtesy Switch

NG : Replace engine hood courtesy switch.
OK : Go To Next Step.

Check harness and connector between body ECU and switch, switch and body ground (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
1. NG : Repair or replace harness or connector.
2. OK : Proceed to next circuit inspection shown in problem symptoms table (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).