Immobilizer-Keyless Control Unit Input Test

Immobilizer-keyless Control Unit Input Test

NOTE: Before testing, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A.

1. Remove the dashboard lower cover.
2. Remove the steering column covers.
3. Disconnect the 7P connector (A) from the immobilizer-keyless control unit (B).






4. Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 5.






5. With the connector still disconnected, make these input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, go to step 6.






6. Reconnect the connector to the immobilizer-keyless control unit, and make these input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, replace the immobilizer-keyless control unit.

NOTE: After replacing the immobilizer-keyless control unit, do the immobilizer registration.