Symptom Troubleshooting
Rear Entertainment System Symptom Troubleshooting - Wireless headphone sound is weak, sound is distorted, there is static, volume does not change, or there is no sound in all modes
Wireless headphone sound is weak, sound is distorted, there is static, volume does not change, or there is no sound in all modes
NOTE:
- Check the vehicle battery condition first Testing and Inspection.
- Check the connector for poor connections or loose terminals.
1. Substitute a known-good wireless headphone and recheck.
Does the symptom go away?
YES -
Replace the original wireless headphones.�
NO -
Go to step 2.
2. Check the lens on the rear edge of the rear screen for dirt or damage.
Does the rear screen appear to be in good condition?
YES -
Go to step 3.
NO -
Substitute a known-good rear controller and screen Service and Repair, and recheck.�
3. Substitute a known-good audio unit Audio Unit Removal/Installation, and recheck.
Does the symptom go away?
YES -
Replace the original audio unit.�
NO -
Go to step 4.
4. Disconnect audio unit connector B (30P), and the rear controller and screen 26P connector.
5. Check for continuity between audio unit connector B (30P) 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 rear controller and screen. Replace the affected shielded harness.�
NO -
Go to step 6.
6. Check for continuity between audio unit connector B (30P) according to the table.
Is there continuity?
YES -
There is a short in the wires between the audio unit and the rear controller and screen. Replace the affected shielded harness.�
NO -
Go to step 7.
7. Check for continuity between audio unit connector B (30P) and rear controller and screen 26P connector according to the table.
Is there continuity?
YES -
Faulty rear controller and screen.�
NO -
There is an open in the wire(s) between the audio unit and the rear controller and screen. Replace the affected shielded harness.�