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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 273 (Body Electrical Systems (Troubleshooting)) >> Troubleshooting >> Problem Symptoms >> Key Unlock Warning Switch

Key Unlock Warning Switch

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.

This system uses the multiplex communication system, so check diagnosis system of the multiplex communication system before you proceed with troubleshooting.

KEY UNLOCK WARNING SWITCH

Symptom/Suspect Area See
Key Unlock Warning System Does Not Operate (Buzzer Does Not Sound When Driver's Door Is Opened With Ignition OFF & Key Inserted)
Key Unlock Warning Switch (1)
Door Courtesy Switch (2)
Wire Harness .....
Key Unlock Warning System Does Not Operate (Buzzer Sounds When Ignition Key Is In ACC Or ON)
Ignition Switch (1)
Wire Harness .....
(1) See INSPECT KEY UNLOCK WARNING SWITCH CONTINUITY
(2) See step 5 of INSPECTION
.