Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
- Use the table below to help determine the cause of the problem symptom. 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
ENGINE IMMOBILIZER SYSTEM PROBLEM SYMPTOMS CHARTSymptom Suspected Area See Engine does not start Ignition switch (for 2UZ-FE) INSPECTION Ignition switch (for 3UR-FE) INSPECTION ECU power source circuit ECU POWER SOURCE CIRCUIT Transponder key ECU - SFI system (for 2U2-FE) HOW TO PROCEED WITH TROUBLESHOOTING SFI system (for 3UR-FE) HOW TO PROCEED WITH TROUBLESHOOTING Security indicator light malfunction Security indicator light circuit SECURITY INDICATOR LIGHT CIRCUIT Ignition switch (for 2UZ-FE) INSPECTION Ignition switch (for 3UR-FE) INSPECTION ECU power source circuit ECU POWER SOURCE CIRCUIT Transponder key ECU - Accessory meter assembly ON-VEHICLE INSPECTION No code is output Diagnosis circuit DIAGNOSIS CIRCUIT Ignition switch (for 2UZ-FE) INSPECTION Ignition switch (for 3UR-FE) INSPECTION ECU power source circuit ECU POWER SOURCE CIRCUIT Transponder key ECU - Unable to register the key Door courtesy switch circuit DOOR COURTESY SWITCH CIRCUIT Ignition switch (for 2UZ-FE) INSPECTION Ignition switch (for 3UR-FE) INSPECTION ECU power source circuit ECU POWER SOURCE CIRCUIT Key DTC B2799 ENGINE IMMOBILIZER SYSTEM MALFUNCTION Transponder key ECU -