Poor or No Sound With Xm Radio (Audio Unit Does Display XM Channels) (USA Models With Navigation)

Audio System Symptom Troubleshooting - Poor or no sound with XM radio (Audio unit does display XM channels)

Poor or no sound with XM radio (Audio unit does display XM channels) (USA models with navigation)

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the connector for poor connections or loose terminals.
- Check the radio reception in an open area. Poor reception/interference can be caused by tall buildings, mountains, or high-voltage power lines are nearby.
- If you can only tune to channel 000, 001, 174, and 247, make sure the audio-navigation unit is set to channel mode. If it is set to channel mode, call XM Radio client support, and check the account activation status.
- If you replace the XM receiver, the AcuraLink must be reactivated by Acura Client Services.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

2. Turn on the audio system and select XM radio.

3. Check for an error message on the display.

Are there any messages displayed?

YES -

Go to Error Codes Audio System Error Codes.

NO -

Go to step 4.

4. Disconnect these items:

- Audio-navigation unit connector C (14P)
- HandsFreeLink control unit 32P connector
- AcuraLink control unit (XM receiver) connector A (32P)

5. Check for continuity between audio-navigation unit connector C (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-navigation unit and the AcuraLink control unit (XM receiver). Replace the affected shielded harness.

NO -

Go to step 6.

6. Check for continuity between the terminals of audio-navigation unit connector C (14P) according to the table.









Is there continuity between any of the terminals?

YES -

There is a short in the wires between the audio-navigation unit and the AcuraLink control unit (XM receiver). Replace the affected shielded harness.

NO -

Go to step 7.

7. Check for continuity between audio-navigation unit connector C (14P) and AcuraLink control unit (XM receiver) connector A (32P) according to the table.













Is there continuity?

YES -

Go to step 8.

NO -

There is an open in the wire(s) between the audio-navigation unit and the AcuraLink control unit (XM receiver). Replace the affected shielded harness.

8. Reconnect audio-navigation unit connector C (14P).

9. Substitute a known-good AcuraLink control unit (XM receiver) AcuraLink Control Unit (XM Receiver) Removal/Installation, and recheck.

Is the symptom/indication go away?

YES -

Update the AcuraLink control unit Programming and Relearning if it does not have the latest software. If the software is the latest, replace the original AcuraLink control unit (XM receiver) AcuraLink Control Unit (XM Receiver) Removal/Installation.

NO -

Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.