Key Unlock Warning Switch
WARNING: This page is about a different car, the 2004 Lexus IS 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 PROBLEM SYMPTOMS
| Symptom | Suspect Area | Action |
|---|---|---|
| Key unlock warning system does not operate. (The buzzer sounds when the ignition key is ACC or ON) |
|