Problem Symptoms Table
HINT:
- Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Troubleshooting of the theft deterrent system is based on the premise that the door lock control system and the wireless door lock control system are operating normally. Check these systems first before troubleshooting the theft deterrent system.
Theft deterrent system
PROBLEM SYMPTOMS TABLE
| Symptom | Suspected area | See |
|---|---|---|
| Theft deterrent system cannot be set | 1. Engine hood courtesy switch circuit | ENGINE HOOD COURTESY SWITCH CIRCUIT |
| 2. Unlock warning switch circuit | DTC B2780 PUSH SWITCH / KEY UNLOCK WARNING SWITCH MALFUNCTION | |
| 3. Door unlock detection switch circuit | HOW TO PROCEED WITH TROUBLESHOOTING | |
| 4. Luggage compartment door key lock and unlock switch | SYSTEM DESCRIPTION | |
| 5. Door courtesy switch circuit | DOOR COURTESY SWITCH CIRCUIT | |
| 6. Door courtesy light circuit | DOOR COURTESY LIGHT CIRCUIT | |
| 7. Luggage compartment door courtesy switch circuit | LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT | |
| 7. Theft warning ECU power source circuit | THEFT WARNING ECU POWER SOURCE CIRCUIT | |
| Security indicator is not blinking when theft deterrent system is set | 1. Security indicator circuit | SECURITY INDICATOR LIGHT CIRCUIT |
| Alarm sounding state cannot be canceled when ignition switch is turned from ON to OFF 10 times within 15 seconds | 1. Ignition switch circuit | IGNITION SWITCH CIRCUIT |
| 2. Unlock warning switch circuit | DTC B2780 PUSH SWITCH / KEY UNLOCK WARNING SWITCH MALFUNCTION | |
| Theft deterrent system can be set even when door is open | 1. Door courtesy switch circuit | DOOR COURTESY SWITCH CIRCUIT |
| 2. Door courtesy light circuit | DOOR COURTESY LIGHT CIRCUIT | |
| Horn (low pitched, high pitched) dose not sound while theft deterrent system is in warning operation | 1. Horn (low pitched, high pitched) circuit | HORN CIRCUIT |
| Headlights do not flash while theft deterrent system is in warning operation | 1. Headlight circuit | HEADLIGHT (HI-BEAM) CIRCUIT |
| Taillights do not flash while theft deterrent system is in warning operation | 1. Taillight circuit | TAILLIGHT CIRCUIT |
| Hazard warning lights do not flash while theft deterrent system is in warning operation | 1. Hazard warning switch circuit | HAZARD WARNING SWITCH CIRCUIT |
| Room light does not illuminate while theft deterrent system is in warning operation | 1. Illumination light circuit | ILLUMINATION CIRCUIT |
| Security horn does not sound while theft deterrent system is not set | 1. Security horn circuit | SECURITY HORN CIRCUIT |
| Headlights flash even when theft deterrent system is not set | 1. Headlight circuit | HEADLIGHT (HI-BEAM) CIRCUIT |
| Taillights flash even when theft deterrent system is not set | 1. Taillight circuit | TAILLIGHT CIRCUIT |
| Hazard warning lights flash even when theft deterrent system is not set | 1. Hazard warning switch circuit | HAZARD WARNING SWITCH CIRCUIT |
| Room light illuminates even when theft deterrent system is not set | 1. Illumination light circuit | ILLUMINATION CIRCUIT |