| 1. | Confirm the vehicles tires are properly inflated. |
| 2. | Check the customers CD for scratches, fingerprints, and marks. NOTE: The following test should be performed with audio unit bass and treble set to customers listening performance. When comparing to known-good vehicles, comparison should be performed on same model and trim level. |
| 3. | Compare the customers CD that is skipping in a known-good vehicle under the same conditions. Does the CD skip in the known-good vehicle under the same conditions? YES - Operation is normal.n NO - Replace the audio unit.n |