Tech Tips
Troubleshooting of the theft deterrent system is based on the premise that the power 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 power door lock control system and the wireless door lock control system are operating normally.
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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Security indicator light does not illuminate when theft deterrent system is set by wireless operation or entry operation. | Proceed to "Theft Deterrent System cannot be Set or Unset" | |
| After doors are locked by wireless operation while engine hood is open, theft deterrent system cannot be set by closing the engine hood. | ||
| Theft deterrent system cannot be unset by wireless door unlock or entry door unlock. | ||
| Theft deterrent system unexpectedly sets itself. | Proceed to "Theft Deterrent System Unexpectedly Sets Itself" | |
| Theft deterrent system cannot be unset by turning the engine on. | Proceed to "Theft Deterrent System is not Unset when Engine is Running" | |
| While alarm is armed, battery is reconnected but alarm does not sound. | Proceed to "While Alarm is Armed, Battery is Reconnected but Alarm does not Sound" | |
| While alarm is armed, engine hood opened but alarm does not sound. | Proceed to "While Alarm is Armed, Engine Hood is Opened but Alarm does not Sound" | |
| Security indicator light does not operate. | Proceed to immobiliser system "Security Indicator Light Does not Blink" | |
| Hazard warning lights do not flash while theft deterrent system is in warning operation. | Proceed to "Some Alarm Functions do not Operate" | |
| Vehicle horn do not sound while theft deterrent system is in warning operation. | ||
| Security horn do not sound while theft deterrent system is in warning operation. |