XM Radio Display Is Blank and No Station Information Is Displayed (With XM Radio Without AcuraLink)

Symptom Troubleshooting: XM radio display is blank and no station information is displayed

XM radio display is blank and no station information is displayed (without AcuraLink)

NOTE:

- Check vehicle battery condition first. Testing and Inspection

- Check the connectors for poor connections or loose terminals.

1. Disconnect XM receiver connector A (14P).

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

3. Measure the voltage between XM receiver connector A (14P) terminal No. 1 and body ground.

Is there battery voltage?
YES - Go to step 4.

NO - Repair an open in the wire between audio unit connector C (14P) terminal No. 1 and XM receiver connector A (14P) terminal No. 1.






4. Measure the voltage between XM receiver connector A (14P) terminal No. 2 and body ground.

Is there battery voltage?
YES - Go to step 5.

NO - Repair an open in the wire between audio unit connector C (14P) No. 2 and XM receiver connector A (14P) terminal No. 2.






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

6. Reconnect XM receiver connector A (14P).

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

8. Measure the voltage between XM receiver connector A (14P) terminal No. 11 and body ground.

Is there less than 0.2 V?
YES - Go to step 9.

NO - Repair an open in the wire between audio unit connector C (14P) terminal No. 11 and XM receiver connector A (14P) terminal No. 11.






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

10. Disconnect XM receiver connector A (14P), navigation display unit 20P connector, HandsFreeLink control unit 28P connector, USB adapter unit connector A (14P), and navigation unit connector B (32P).

11. Check for continuity between XM receiver connector A (14P) and body ground according to the table. Then check for continuity between the same terminals listed in the table and XM receiver connector A (14P) terminal No. 3 (the harness shield).





Is there continuity?
YES - There is a short in the wire(s) between the audio unit and the XM receiver. Replace the affected shielded harness.

NO - Go to step 13.






12. Check for continuity between XM receiver connector A (14P) and the navigation display unit 20P connector according to the table.





Is there continuity?
YES - Go to step 13.

NO - There is an open in the wire(s) between the navigation display unit and the XM receiver.






13. Check for continuity between XM receiver connector A (14P) and the HandsFreeLink control unit 28P connector according to the table.





Is there continuity?
YES - Go to step 14.

NO - There is an open in the wire(s) between the HandsFreeLink control unit and the XM receiver. Replace the affected shielded harness.






14. Check for continuity between XM receiver connector A (14P) and USB adapter unit connector A (14P) according to the table.





Is there continuity?
YES - Substitute a known-good XM receiver, Service and Repair then reconnect all of the connectors, and recheck. If the symptom/indication goes away, replace the original XM receiver. Service and Repair If the symptom/indication is still present replace the audio unit. Audio Unit Removal/Installation

NO - There is an open in the appropriate wire between the USB adapter unit and the XM receiver. Replace the affected shielded harness.