Poor or No Sound With XM Radio (Audio Unit Does Display XM Channels) (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) (with navigation)

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- 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 (see owners manual), 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 28P 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. Then check for continuity between the same terminals listed in the table and audio-navigation unit connector C (14P) terminal No. 4 (the harness shield).









Is there continuity?

YES -

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

NO -

Go to step 6.

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













Is there continuity?

YES -

Substitute a known-good AcuraLink control unit (XM receiver) AcuraLink Control Unit (XM Receiver) Removal/Installation, then reconnect all connectors, and recheck. If the symptom/indication goes away, update the AcuraLink control unit Programming and Relearning if it does not have the latest software, then recheck. If the software is the latest, replace the AcuraLink control unit (XM receiver). If symptom/indication is still present, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�

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.�