Unable To Select Audio Disc Changer (With Navigation)

Audio System Symptom Troubleshooting - Unable to select audio disc changer

Unable to select audio disc changer (with navigation)

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.

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

2. Insert a known-good disc into the audio disc changer.

Does the disc load?

YES -

Go to step 3.

NO -

Go to Audio disc does not load troubleshooting Audio Disc Does Not Load.

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

4. Disconnect audio unit connector G (14P).

5. Disconnect the audio disc changer 14P connector.

6. Check for continuity between audio unit connector G (14P) and body ground according to the table.









Is there continuity?

YES -

There is a short to body ground in the wire(s) between the audio unit and the audio disc changer. Replace the affected shielded harness.

NO -

Go to step 7.

7. Check for continuity between the terminals of audio unit connector G (14P) according to the table.









Is there continuity between any of the terminals?

YES -

There is a short in the wires between the audio unit and the audio disc changer. Replace the affected shielded harness.

NO -

Go to step 8.

8. Check for continuity between audio unit connector G (14P) and the audio disc changer 14P connector according to the table.













Is there continuity?

YES -

Substitute a known-good audio disc changer Service and Repair, and recheck. If the symptom/indication goes away, replace the original audio disc changer Service and Repair. If the symptom/indication is still present, replace the audio unit Audio Unit Removal/Installation (With Navigation).

NO -

There is an open in the wire(s) between the audio unit and the audio disc changer. Replace the affected shielded harness.