ENGINE IMMOBILISER SYSTEM (w/o Entry and Start System) PROBLEM SYMPTOMS TABLE

Tech Tips


  • 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.

Engine Immobiliser System
Symptom Suspected Area See page
Unable to register the key. Driver side door courtesy light switch circuit

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Wire harness or connector -
Transponder key ECU -
Engine does not start. Key -
ECU power source circuit

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ECD system (for 1ND-TV)

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SFI system (for 1KR-FE)

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SFI system (for 1NR-FE)

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Transponder key ECU -