Problem Symptoms Table
HINT:
- 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 Immobilizer System
SYMPTOM REFERENCESymptom Suspected Area See page Unable to register the key. Front door courtesy light switch assembly (for driver side) DOOR COURTESY SWITCH CIRCUIT Wire harness or connector - Transponder key ECU assembly - Engine does not start. Key DATA LIST / ACTIVE TEST ECU power source circuit ECU POWER SOURCE CIRCUIT SFI system (for 2ZR-FE) HOW TO PROCEED WITH TROUBLESHOOTING SFI system (for 2AZ-FE) HOW TO PROCEED WITH TROUBLESHOOTING Transponder key ECU assembly - Security indicator is always ON. Telltale light assembly SECURITY INDICATOR LIGHT CIRCUIT Wire harness or connector - Transponder key ECU assembly - Security indicator is OFF. Telltale light assembly SECURITY INDICATOR LIGHT CIRCUIT Wire harness or connector - Transponder key ECU assembly - Security indicator is blinking abnormally. Transponder key ECU assembly - Engine Immobilizer system DTCs are not output. Wire harness or connector DIAGNOSIS CIRCUIT Transponder key ECU assembly -