THEFT DETERRENT SYSTEM PROBLEM SYMPTOMS TABLE
Tech Tips
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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.
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Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.
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Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Theft deterrent system cannot be set | Security indicator light circuit | |
| ECU power source circuit | ||
| Door courtesy switch circuit | ||
| Engine hood courtesy switch circuit | ||
| Front door lock assembly | ||
| Rear door lock actuator assembly | ||
| Back door lock assembly | ||
| Replace certification ECU (smart key ECU assembly) | - | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU | ||
| Security indicator light does not blink when theft deterrent system is set | Security indicator light circuit | |
| Replace certification ECU (smart key ECU assembly) | - | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU | ||
| Alarm sounding state cannot be canceled when engine switch is turned on (IG) | Smart entry and start system (for start function) | |
| Vehicle horns (low pitched, high pitched) do not sound while theft deterrent system is in warning operation | Horn circuit | |
| Replace certification ECU (smart key ECU assembly) | - | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU | ||
| Hazard warning lights do not flash while theft deterrent system is in warning operation | Wire harness | - |
| Turn signal flasher assembly | ||
| Replace certification ECU (smart key ECU assembly) | - | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU | ||
| Security horn does not sound while theft deterrent system is in warning operation | Security horn circuit | |
| Replace certification ECU (smart key ECU assembly) | - | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU | ||
| Hazard warning lights flash even when theft deterrent system is not set | Wire harness | - |
| Turn signal flasher assembly | ||
| Replace certification ECU (smart key ECU assembly) | - | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU | ||
| Theft deterrent system can be set even when a door is open | Door courtesy switch circuit | |
| If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU | - | |
| Theft deterrent system can be set even when engine hood is open | Engine hood courtesy switch circuit | |
| Replace certification ECU (smart key ECU assembly) | - | |
| If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU | ||
| Theft deterrent system can be set even when back door is open | Door courtesy switch circuit (back door) | |
| If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU |