Symptom Troubleshooting

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 the vehicle battery condition first. Testing and Inspection

- Check the connectors for poor connections or loose terminals.

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

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

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 the audio unit and the XM receiver.






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

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

Is there less than 0.2 V?
YES - Go to step 6.

NO - Repair an open in the wire between the audio unit and the XM receiver.






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

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

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

9. 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 10.

NO - Repair an open or high resistance in the wire between the audio unit and the XM receiver.






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

11. Disconnect audio unit connector E (14P), XM receiver connector A (14P), USB adapter unit connector A (14P), and the HandsFreeLink control unit 28P connector.

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

13. Measure the voltage between body ground and audio unit connector E (14P) terminals No. 9 and No. 10 individually.

Is there less than 0.5 V?
YES - Go to step 14.

NO - Substitute a known-good audio unit, Audio Unit Removal/Installation (With Premium Audio System) and recheck. If 0.5 V or less are present, replace the original audio unit.






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

15. Check for continuity between the following terminals of the audio unit connector E (14P) and XM receiver connector A (14P).





Is there continuity?
YES - Go to step 16.

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






16. Check for continuity between body ground and XM receiver connector A (14P) terminals No. 9 and No. 10 individually.

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

NO - Go to step 17.






17. Check for continuity between the terminals of XM receiver connector A (14P) according to the table.





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

NO - Substitute a known-good audio unit, with ELS audio system Audio Unit Removal/Installation (With AcuraLink), with premium audio system, Audio Unit Removal/Installation (With Premium Audio System) and recheck. If the symptom/indication goes away, replace the original audio unit. If the symptom is still present, substitute a known-good XM receiver, XM Receiver Removal/Installation (Without AcuraLink With XM Radio) and recheck. If the symptom/indication goes away, replace the original XM receiver.