Problem Symptoms Table
Proceed to the reference shown in SYMPTOM TABLE for each malfunction symptom and troubleshoot each circuit.
HINT:
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. Accordingly, before troubleshooting the theft deterrent system, first make certain that the door lock control system and the wireless door lock control system are operating normally.
Theft deterrent system
SYMPTOM TABLE
| Symptom | Suspected area | Reference |
|---|---|---|
| Theft deterrent system cannot be set | Security indicator light circuit | IGNITION SWITCH CIRCUIT |
| ECU power source circuit | ECU Power Source Circuit | |
| Door key lock and unlock circuit | DRIVER SIDE DOOR KEY LOCK AND UNLOCK SWITCH CIRCUIT | |
| Door courtesy switch circuit | DOOR COURTESY SWITCH CIRCUIT | |
| Luggage compartment door courtesy switch | BACK DOOR COURTESY SWITCH | |
| Engine hood courtesy switch circuit | Engine Hood Courtesy Switch Circuit | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Security indicator does not blink when theft deterrent system is set | Security indicator light circuit | Security Indicator Light Circuit |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Alarm sounding state cannot be canceled when engine switch is turned on (IG or ACC) | Ignition switch circuit | IGNITION SWITCH CIRCUIT |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Theft deterrent system can be set even when a door is open | Door courtesy switch circuit | DOOR COURTESY SWITCH CIRCUIT |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Vehicle horns (low pitched, high pitched) do not sound while theft deterrent system is in warning operation | Horn circuit | Horn Circuit |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Headlights do not blink while theft deterrent system is in warning operation | Headlight circuit | WIRING DIAGRAM |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Taillights do not blink while theft deterrent system is in warning operation | Taillight circuit | TAILLIGHT CIRCUIT |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Hazard warning lights do not blink while theft deterrent system is in warning operation | Wire harness | - |
| Turn signal flasher | ON-VEHICLE INSPECTION | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Interior light does not light up while theft deterrent system is in warning operation | Interior light circuit | INTERIOR LIGHT CIRCUIT |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Security horn does not sound while theft deterrent system is in warning operation | Security horn circuit | Security Horn Circuit |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Headlights blink even when theft deterrent system is not set | Headlight circuit | WIRING DIAGRAM |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Taillights blink even when theft deterrent system is not set | Taillight circuit | TAILLIGHT CIRCUIT |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Hazard warning lights blink even when theft deterrent system is not set | Wire harness | - |
| Turn signal flasher | ON-VEHICLE INSPECTION | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - | |
| Interior light comes on even when theft deterrent system is not set | Interior light circuit | INTERIOR LIGHT CIRCUIT |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU RH (Cowl side J/B RH) | - |