Key Unlock Warning Switch:
WARNING: This page is about a different car, the 2003 Lexus RX 300. 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 TROUBLE SYMPTOMS REFERENCE
| Symptom | Suspect Area | See Section |
|---|---|---|
| Key unlock warning system does not operate. (The buzzer does not sound when the driver's door is opened with the ignition OFF and key inserted) |
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| Key unlock warning system does not operate. (The buzzer sounds when the ignition key is ACC or ON) |
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