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THEFT DETERRENT SYSTEM > PROBLEM SYMPTOMS TABLE

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


Theft Deterrent System 
Symptom
Suspected Area
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Theft deterrent system cannot be set
Security indicator light circuit
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ECU power source 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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Door courtesy switch circuit
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Engine hood courtesy switch circuit
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Security indicator does not blink when theft deterrent system is set
Security indicator light circuit
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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)
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Theft deterrent system can be set even when door is open
Door courtesy switch circuit
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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)
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Theft deterrent system can be set even when engine hood is open
Engine hood courtesy switch circuit
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Vehicle horn(s) (low pitched, high pitched) do not sound while theft deterrent system is in warning operation
Horn circuit
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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
Security horn does not sound while theft deterrent system is in warning operation*1
Security horn circuit
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Theft warning siren does not sound while theft deterrent system is in warning operation*2
Theft warning siren circuit
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Hazard warning lights flash even when theft deterrent system is not set
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)
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Intrusion sensor cancel switch does not operate*2
Intrusion sensor cancel switch circuit
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Glass breakage sensor does not operate*2
Glass breakage sensor circuit
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  1. *1: w/o Intrusion Sensor
  2. *2: w/ Intrusion Sensor