Wireless Headphone Sound Weak, Sound Distorted, Static, Volume Doesn't Change, No Sound All Modes
Wireless headphone sound is weak, sound is distorted, there is static, volume does not change, or there is no sound in all modesNOTE:
- Check the vehicle battery condition first.
- 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 and recheck.
3. Substitute a known-good audio unit and recheck.
Does the symptom go away?
YES - Replace the original audio unit.
NO - Go to step 4.
4. Disconnect the 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 - Short to body ground in the wire(s) between audio unit and 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 - Short in the wires between audio unit and 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 - Open in the wire(s) between audio unit and rear controller and screen/Replace the affected shielded harness.