Auxiliary Input Sound Is Low or Cannot Be Heard (With Navigation)

Audio System Symptom Troubleshooting - Auxiliary input sound is low or cannot be heard

Auxiliary input sound is low or cannot be heard (with navigation)

NOTE:

- Check the vehicle battery condition first 12 Volt Battery Test.
- Use auxiliary stereo cables with 3.5 mm ends only.
- Auxiliary accessories may be played on the audio-navigation unit using the auxiliary input.

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

2. Turn on the audio-navigation unit and connect an auxiliary accessory to the auxiliary input jack.

3. Check the volume operation.

Is the sound normal?

YES -

Operation is normal at this time.

NO -

Go to step 4.

4. Make sure the auxiliary accessory volume is set to MAX.

Is the volume set to MAX?

YES -

Go to step 5.

NO -

Raise the auxiliary accessory volume to MAX. Make sure the audio-navigation unit volume is turned down before retesting.

5. Substitute a known-good auxiliary audio accessory and/or auxiliary stereo cable, and recheck.

Does the auxiliary audio accessory operate properly?

YES -

Original auxiliary audio accessory or auxiliary stereo cable is faulty.

NO -

Go to step 6.

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

7. Remove the auxiliary jack assembly, and check that the auxiliary jack assembly is properly connected.

Is the auxiliary jack assembly connected properly?

YES -

Go to step 8.

NO -

Reconnect the connector, and recheck.

8. Disconnect the auxiliary jack assembly 5P connector.

9. Remove the audio-navigation unit Audio-Navigation Unit Removal/Installation, and disconnect audio-navigation unit connector B (16P).

10. Check for continuity between body ground and audio-navigation unit connector B (16P) according to the table.









Is there continuity?

YES -

There is a short to body ground in the wire(s) between the audio-navigation unit and the auxiliary jack assembly. Replace the affected shielded harness or repair a short in the wire(s).

NO -

Go to step 11.

11. Check for continuity between the terminals of audio-navigation unit connector B (16P) according to the table.









Is there continuity?

YES -

There is a short in the wires between the audio-navigation unit and the auxiliary jack assembly. Replace the affected shielded harness or repair a short in the wires.

NO -

Go to step 12.

12. Check for continuity between audio-navigation unit connector B (16P) and the auxiliary jack assembly 5P connector according to the table.













Is there continuity?

YES -

Substitute a known-good auxiliary jack assembly, and recheck. If the symptom/indication goes away, replace the original auxiliary jack assembly Auxiliary Jack Assembly Replacement. If the symptom/indication is still present, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.

NO -

There is an open in the wire(s) between the audio-navigation unit and the auxiliary jack assembly. Replace the affected shielded harness or repair an open in the wire(s).