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THEFT DETERRENT SYSTEM > PROBLEM SYMPTOMS TABLE

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HINT:
  1. 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.
  2. 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.
  3. Inspect the fuses and relays related to this system before inspecting the suspected areas below.


Theft Deterrent System 
Symptom
Suspected Area
See page
Theft deterrent system cannot be set
ECU power source circuit
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Door courtesy switch circuit
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Front door lock assembly
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Rear door lock assembly
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Back door lock assembly
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Engine hood courtesy switch circuit
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Security indicator does not come on while theft deterrent system is in warning operation
Engine immobiliser system
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Alarm sounding state cannot be canceled when power switch is turned on (IG)
Entry and start system (for start function)
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Theft deterrent system can be set even when door is open
Door courtesy switch circuit
 Click here
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)
 Click here
Theft deterrent system can be set even when engine hood is open
Engine hood courtesy switch circuit
 Click here
Vehicle horns (low pitched, high pitched) do not sound while theft deterrent system is in warning operation
Horn circuit
 Click here
Theft warning siren does not sound while theft deterrent system is in warning operation
Theft warning siren circuit
 Click here
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)
 Click here
Hazard warning lights do not flash while theft deterrent system is in warning operation
Wire harness or connector
-
Turn signal flasher assembly
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If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)
 Click here
Hazard warning lights flash even when theft deterrent system is not set
Wire harness or connector
-
Turn signal flasher assembly
 Click here
If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (multiplex network body ECU)
 Click here
Intrusion sensor cancel switch does not operate
Intrusion sensor cancel switch circuit
 Click here
Glass breakage sensor does not operate*
Glass breakage sensor circuit
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  1. *: w/ Combination Meter Assembly with mph Units