Problem Symptoms Table
Proceed to the reference page shown in the table below for each malfunction symptom and troubleshoot each circuit.
HINT:
Troubleshooting of the TVIP system is based on the premise that the door lock control system and wireless door lock control system are operating normally. Accordingly, before troubleshooting the TVIP system, first make certain that the door lock control system and wireless door lock control system are operating normally.
TOYOTA VEHICLE INTRUSION PROTECTION SYSTEM:
VEHICLE INTRUSION PROTECTION SYSTEM - PROBLEM SYMPTOMS CHART
| Symptom | Suspected area | See |
|---|---|---|
| TVIP system cannot be set. | 1. Security Indicator Light Circuit | SECURITY INDICATOR LIGHT CIRCUIT |
| 2. ECU Power Source Circuit | ECU POWER SOURCE CIRCUIT | |
| 3. Unlock Warning Switch Circuit | UNLOCK WARNING SWITCH CIRCUIT | |
| 4. Door Key Lock / Unlock Switch Circuit | DOOR KEY LOCK / UNLOCK SWITCH CIRCUIT | |
| 5. Door Unlock Detection Switch Circuit | DOOR UNLOCK DETECTION SWITCH CIRCUIT | |
| 6. Door Courtesy Switch Circuit | DOOR COURTESY SWITCH CIRCUIT | |
| 7. TVIP ECU Communication Circuit | TVIP ECU Communication Circuit | |
| Security indicator does not blink when TVIP system is set. | Security Indicator Light Circuit | SECURITY INDICATOR LIGHT CIRCUIT |
| TVIP system does not operate when front door is unlocked (when TVIP system is set). | Door Unlock Detection Switch Circuit | DOOR UNLOCK DETECTION SWITCH CIRCUIT |
| TVIP system is not canceled when ignition switch is turned ON (when TVIP system is set). | 1. Ignition Switch Circuit | IGNITION SWITCH CIRCUIT |
| 2. Unlock Warning Switch Circuit | UNLOCK WARNING SWITCH CIRCUIT | |
| TVIP system still operates when door is opened with key (when TVIP system is set). | 1. Door Key Lock / Unlock Switch Circuit | DOOR KEY LOCK / UNLOCK SWITCH CIRCUIT |
| 2. Door Unlock Detection Switch Circuit | DOOR UNLOCK DETECTION SWITCH CIRCUIT | |
| Horns do not sound while TVIP system is in warning operation. | Horn Circuit | HORN CIRCUIT |
| Headlights do not flash while TVIP system is in warning operation. | Light Control Switch Circuit | LIGHT CONTROL SWITCH CIRCUIT |
| Hazard warning lights do not flash while TVIP system is in warning operation. | Hazard Warning Switch Circuit | HAZARD WARNING SWITCH CIRCUIT |
| Door is not locked while TVIP system is in warning operation. | Door Unlock Detection Switch Circuit | DOOR UNLOCK DETECTION SWITCH CIRCUIT |
| TVIP system is still set even when rear door is open. | Door Courtesy Switch Circuit | DOOR COURTESY SWITCH CIRCUIT |
| Horns sound even when TVIP system is not set. | Horn Circuit | HORN CIRCUIT |
| Headlights stay on even when TVIP system is not set. | Light Control Switch Circuit | LIGHT CONTROL SWITCH CIRCUIT |
| Hazard warning lights stay on even when TVIP system is not set. | Hazard Warning Switch Circuit | HAZARD WARNING SWITCH CIRCUIT |