Problem Symptoms Table
Proceed to the reference shown in the table below for each malfunction symptom and troubleshoot each circuit.
HINT:
Troubleshooting of the theft deterrent system is based on the premise that the smart key system, the door lock control system and the wireless door lock control system are operating normally. Therefore, before troubleshooting the theft deterrent system, first make certain that the above 3 systems are operating normally.
THEFT DETERRENT SYSTEM CHART
| Symptom | Suspected area | See |
|---|---|---|
| Theft deterrent 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 (*1) | DTC B2780 PUSH SWITCH / KEY UNLOCK WARNING SWITCH MALFUNCTION | |
| 4. Door Key Lock and Unlock Switch Circuit | LUGGAGE COMPARTMENT DOOR LOCK CIRCUIT | |
| 5. Door Courtesy Switch Circuit | DOOR COURTESY SWITCH CIRCUIT | |
| 6. Luggage Compartment Door Courtesy Switch Circuit | LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT | |
| 7. Engine Hood Courtesy Switch Circuit. | ENGINE HOOD COURTESY SWITCH CIRCUIT | |
| 8. Replace Instrument Panel J/B Assembly (Multiplex Network Body ECU) | - | |
| Security indicator does not blink when theft deterrent system is set | Security Indicator Light Circuit | SECURITY INDICATOR LIGHT CIRCUIT |
| Alarm sounding state can not be canceled when ignition switch is turned ON-OFF 10 times within 15 seconds (*1) | 1. Ignition Switch Circuit | IGNITION SWITCH CIRCUIT |
| 2. Unlock Warning Switch Circuit (*1) | DTC B2780 PUSH SWITCH / KEY UNLOCK WARNING SWITCH MALFUNCTION | |
| Theft deterrent system can be set even when a door is open | Door Courtesy Switch Circuit | DOOR COURTESY SWITCH CIRCUIT |
| Vehicle horns (low pitched, high pitched) do not sound while theft deterrent system is in warning operation | Horn Circuit | HORN CIRCUIT |
| Headlights do not flash while theft deterrent system is in warning operation | Headlight Relay Circuit | HEADLIGHT RELAY CIRCUIT |
| Taillights do not flash while theft deterrent system is in warning operation | Taillight Relay Circuit | TAILLIGHT RELAY CIRCUIT |
| Hazard warning lights do not flash while theft deterrent system is in warning operation | Hazard Warning Switch Circuit | HAZARD WARNING SWITCH CIRCUIT |
| Interior light does not light up while theft deterrent system is in warning operation | Illumination Circuit | ILLUMINATION CIRCUIT |
| Security horn does not sound while theft deterrent system is in warning operation | Security Horn Circuit | SECURITY HORN CIRCUIT |
| Headlights flash even when theft deterrent system is not set | Headlight Relay Circuit | HEADLIGHT RELAY CIRCUIT |
| Taillights flash even when theft deterrent system is not set | Taillight Relay Circuit | TAILLIGHT RELAY CIRCUIT |
| Hazard warning lights flash even when theft deterrent system is not set | Hazard Warning Switch Circuit | HAZARD WARNING SWITCH CIRCUIT |
| Interior lights comes on even when theft deterrent system is not set | Illumination Circuit | ILLUMINATION CIRCUIT |
| Glass breakage sensor does not operate (*2) | Glass Breakage Sensor Circuit | GLASS BREAKAGE SENSOR CIRCUIT |
HINT:
- *1: without Smart Key System
- *2: with Glass Breakage Sensor