XM Radio Display Is Blank And No Station Information Is Displayed (With Navigation)

Audio System Symptom Troubleshooting - XM radio display is blank and no station information is displayed

XM radio display is blank and no station information is displayed (with navigation)

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or loose terminals.

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





Is there battery voltage?

YES -

Go to step 3.

NO -

Go to step 2.

2. Measure the voltage between audio-navigation unit connector E (14P) terminal No. 1 and body ground.





Is there battery voltage?

YES -

Repair an open or high resistance in the wire between the audio-navigation unit and the XM receiver.�

NO -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�

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

4. 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 5.

NO -

Repair an open or high resistance in the wire between the XM receiver and the audio-navigation unit.�

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

6. Disconnect these items:

- Audio-navigation unit connector E (14P)
- USB adapter control unit connector A (14P)
- XM receiver connector A (14P)

7. Check for continuity between XM receiver connector A (14P) terminal No. 2 and body ground.





Is there continuity?

YES -

Repair a shot to body ground in the wire between XM receiver connector A (14P) terminal No. 2 and audio-navigation unit connector E (14P) terminal No. 2.�

NO -

Go to step 8.

8. Check for continuity between audio-navigation unit connector E (14P) terminal No. 2 and XM receiver connector A (14P) terminal No. 2.





Is there continuity?

YES -

Go to step 9.

NO -

Repair an open in the wire between the audio-navigation unit and the XM receiver.�

9. Check for continuity between audio unit connector E (14P) and body ground according to the table.









Is there continuity?

YES -

Go to step 10.

NO -

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

10. Check for continuity between the terminals of audio-navigation connector E (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 XM receiver. Replace the affected shielded harness.�

NO -

Go to step 11.

11. Check for continuity between audio-navigation unit connector E (14P) and XM receiver connector A (14P) according to the table.













Is there continuity?

YES -

Substitute a known-good XM receiver Service and Repair, then reconnect all 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-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 XM receiver. Replace the affected shielded harness.�