Symptom Troubleshooting

Audio System Symptom Troubleshooting - Audio disc skips

Special Tools Required

- Diagnostic CD 07AAZ-SDBA100
- Skip Test CD 07AAZ-SDBA200
- Skip Test CD 07AAZ-SDBA300

Audio disc skips

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or loose terminals.
- Disc labels should not be used in the audio unit. They may jam, and damage the player mechanism.

1. Turn the ignition switch to ON (II).

2. Confirm the vehicles tires are properly inflated.

3. Check the client's CD for scratches and fingerprints.

NOTE: The following test should be done with the audio unit bass and treble set to the client's listening settings. When comparing to known-good vehicles, the comparison should be done on the same model and trim level.

4. Test-drive the vehicle to identify when the client's CD skips. The audio diagnostic CD (T/N 07AAZ-SDBA100) can be used if the client's CD is not available; use tracks 10-12.

Does the disc skip?

YES -

Go to step 5.

NO -

Operation is normal.�

5. Compare the client's CD that is skips to a known-good vehicle under the same conditions.

Does the disc skip in the known-good vehicle under the same conditions?

YES -

The disc player operation is normal, the problem is with the client's disc.�

NO -

Go to step 6.

NOTE: Do the following test with vehicle parked and the engine running.

6. Insert the diagnostic skip test CD (T/N 07AAZ-SDBA300). Play tracks 2-11, and note on which track number(s) the disc starts skipping. Do the same test on a known-good vehicle.

Does the disc skip on same track(s) as the known-good vehicle?

YES -

Operation is normal.�

NO -

Go to step 7.

7. Insert the diagnostic skip test CD (T/N 07AAZ-SDBA200). Play tracks 7-11 and tracks 13-15, and note on which track number(s) where the disc starts skipping. Do the same test on a known-good vehicle.

Does the disc skip on same track number(s) as the known-good vehicle?

YES -

Operation is normal.�

NO -

Substitute a known-good audio unit Audio Unit Removal / Installation, and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal / Installation.�