| 1. | Repeat turning the ignition switch ON (II) and OFF to see if the problem appears. Does the problem appear? YES - Go to 2. NO - Operation is normal.n |
| 2. | Remove the audio-HVAC-display module, and check for the proper connection of the audio unit connector A (20P). Is it connected properly? YES - Go to 3. NO - Reconnect the connector, and recheck the problem.n |
| 3. | Check that the audio unit switches correctly respond to your operation. Do they function correctly? YES - Faulty front printed circuit board.n NO - Faulty front printed circuit board and audio printed circuit board.n |