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FOREWORD [IMMOBILIZER SYSTEM]

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  Caution

  • When the engine does not start or stalls and the following DTCs are not indicated, refer to engine symptom troubleshooting. (See NO.3 WILL NOT CRANK [WITHOUT WU-TWC].) (See NO.3 WILL NOT CRANK [WITH WU-TWC].)
  • DTCs cannot be retrieved due to a security light circuit malfunction, refer to immobilizer system symptom troubleshooting. (See NO.1 SECURITY LIGHT REMAINS ON OR DOES NOT ILLUMINATE.)

  Note

  • When the immobilizer system is defective, the engine cannot be started.
  • If engine condition is normal but the security light stays on, inspect for a short circuit between the security light. Repair or replace the wiring harness if necessary.
  • The vehicle may fail to start or a DTC may be stored in the PCM if any of the following occur:

  - If a large, metal object is close to a valid key
  - If an electrical device is close to a valid key
  - If two or more valid keys are on the same key ring

  • If any malfunction cannot be identified, verify that no metal object or electrical device is on the key ring.
  • The security light repeatedly displays a DTC 10 times when the ignition switch is in the ON position.

1. Turn the ignition switch to the ON position.

  • If there is any malfunction, the security light flashes rapidly for approx. 1 min and starts displaying a DTC.
  • If there is no malfunction, the security light illuminates for approx. 3 s and goes off.

2. Connect the WDS to the vehicle DLC-2 16-pin connector.

3. Verify the security light condition and read the DTC by flashing pattern of the security light.

4. Verify the DTC with the WDS.

5. If a DTC is indicated, go to the on-board diagnostic referring to the DTC table.

## PID/Data Monitor and Record Procedure

1. Connect the WDS to the vehicle DLC-2 16-pin connector.

2. Access and monitor PIDs using the WDS.