XM Radio Display Is Blank and No Station Information Is Displayed (08-10 Models)

Audio System Symptom Troubleshooting - XM radio display is blank and no station information is displayed ('08-10 models)

XM radio display is blank and no station information is displayed ('08-10 models)

NOTE:

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

1. With navigation: Check the related system operation (navigation system, audio disc changer).

Is the operation normal?

YES -

Go to step 2.

NO -

Go to related system troubleshooting.�

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

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 No. 7 (7.5 A) fuse in the under-dash fuse/relay box and XM receiver connector A (14P) terminal No. 1.�

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

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





Is there less than 0.2 V?

YES -

- With navigation: Go to step 6.
- Without navigation: Go to step 16.

NO -

- With navigation: Repair an open in the wire between XM receiver connector A (14P) and audio disc changer connector B (14P).�
- Without navigation: Repair an open in the wire between XM receiver connector A (14P) and audio unit connector D (14P).�

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

7. Measure the voltage between audio disc changer connector B (14P) terminal No. 2 and body ground.





Is there 10 V or more present?

YES -

Go to step 8.

NO -

Substitute a known-good audio disc changer Service and Repair, and recheck. If there is 10 V or more present, replace the original audio disc changer.�

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





Is there 10 V or more present?

YES -

Go to step 9.

NO -

Repair an open or high resistance in the wire between audio disc changer connector B (14P) and XM receiver connector A (14P).�

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

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





Is there less than 0.5 V?

YES -

Go to step 11.

NO -

Substitute a known-good audio disc changer Service and Repair, and recheck. If 0.5 V or less are present, replace the original audio disc changer.�

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

12. Disconnect navigation unit connector B (16P) and XM receiver connector A (14P).

13. Check for continuity between XM receiver connector A (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 XM receiver and the navigation unit. Replace the affected shielded harness.�

NO -

Go to step 14.

14. Check for continuity between 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 wires between the XM receiver and the navigation unit. Replace the affected shielded harness.�

NO -

Go to step 15.

15. Check for continuity between XM receiver connector A (14P) and navigation unit connector B (16P) according to the table.













Is there continuity?

YES -

Substitute a known-good XM receiver XM Receiver Removal/Installation, then reconnect all of the connectors and recheck. If the symptom/indication goes away, replace the original XM receiver. If the symptom/indication is still present, replace the navigation unit Service and Repair. �

NO -

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

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

17. Measure the voltage between audio unit connector D (14P) terminal No. 2 and body ground.





Is there 10 V or more present?

YES -

Go to step 18.

NO -

Substitute a known-good audio unit Audio Unit Removal/Installation, and recheck. If there is 10 V or more present, replace the original audio unit.�

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





Is there 10 V or more present?

YES -

Go to step 19.

NO -

Repair an open or high resistance in the wire between audio unit connector D (14P) and XM receiver connector A (14P).�

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

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





Is there less than 0.5 V?

YES -

Go to step 21.

NO -

Substitute a known-good audio unit Audio Unit Removal/Installation, and recheck. If there is less than 0.5 V present, replace the original audio unit.�

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

22. Disconnect audio unit connector D (14P) and XM receiver connector A (14P).

23. Check for continuity between XM receiver connector A (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 XM receiver and the audio unit. Replace the affected shielded harness.�

NO -

Go to step 24.

24. Check for continuity between 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 wires between the XM receiver and the audio unit. Replace the affected shielded harness.�

NO -

Go to step 25.

25. Check for continuity between XM receiver connector A (14P) and audio unit connector D (14P) according to the table.













Is there continuity?

YES -

Substitute a known-good XM receiver XM Receiver Removal/Installation, then reconnect all of the connectors and recheck. If the symptom/indication goes away, replace the original XM receiver. If the symptom/indication is still present, replace the audio unit Audio Unit Removal/Installation.�

NO -

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