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, the wireless door lock control system, the lighting system, the horn system, the engine immobilizer system and the smart access system with push-button start are operating normally. Check these systems first before troubleshooting the theft deterrent system.
Theft deterrent system
THEFT DETERRENT SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Theft deterrent system cannot be set | Engine hood courtesy switch circuit | ENGINE HOOD COURTESY SWITCH CIRCUIT |
| Door courtesy light switch circuit | DOOR COURTESY LIGHT DOES NOT ILLUMINATE | |
| Certification ECU power source circuit | CERTIFICATION ECU POWER SOURCE CIRCUIT | |
| Security indicator is not blinking when theft deterrent system is set | Security indicator light circuit | SECURITY INDICATOR LIGHT CIRCUIT |
| Alarm sounding state cannot be canceled when engine switch is turned on (IG) | Ig power source circuit | IG POWER SOURCE CIRCUIT |
| Theft deterrent system can be set even when any door is open | Door courtesy light switch circuit | DOOR COURTESY LIGHT DOES NOT ILLUMINATE |
| Engine hood courtesy switch circuit | ENGINE HOOD COURTESY SWITCH CIRCUIT | |
| Luggage compartment door courtesy switch | REMOVAL | |
| Horns (low pitched, high pitched) do not sound while theft deterrent system is in alarm sounding state | Horn circuit | VEHICLE HORN DOES NOT SOUND |
| Hazard warning lights do not flash while theft deterrent system is in warning operation | Hazard warning switch circuit | TURN SIGNAL LIGHT DOES NOT ILLUMINATE |
| Headlights do not flash while theft deterrent system is in alarm sounding state | Headlight relay circuit | LO-BEAM HEADLIGHT DOES NOT ILLUMINATE |
| Taillights do not flash while theft deterrent system is in alarm sounding state | Taillight circuit | STOP LIGHT DOES NOT ILLUMINATE |
| Map light does not illuminate while theft deterrent system is in alarm sounding state | Room light circuit | ROOM LIGHT CONTROL DOES NOT OPERATE |
| Security horn does not sound while theft deterrent system is set | Dtc B2485 (Security horn circuit) | DTC B2485 SECURITY HORN CIRCUIT TRANSISTOR |
HINT:
If the suspected areas operate normally, replace the certification ECU.