Component Tests and General Diagnostics

Moonroof Control Unit Input Test

NOTE:

- If the moonroof works OK manually, but will not work in AUTO, or reverses frequently (obstacle detection), reset the moonroof before proceeding with the input test.
- Before testing, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

1. Turn the ignition switch to LOCK (0).

2. Remove the front individual map lights Front Individual Map Light Test/Replacement.

3. Disconnect the 14P connector (A) from the moonroof control unit/motor (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, do the following input tests:

- 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 control unit, and do the following input tests:

- 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 7.





7. If all the input tests are OK and multiple failures are found, replace the moonroof control unit/motor Service and Repair. If the problem is related to the key-off operation, go to the MICU input test.