XM Radio Display Is Blank And No Station Information Is Displayed
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
NOTE:
- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or loose terminals.
- Do not do this procedure if the audio disc changer and navigation display buttons are inoperative. Refer to the navigation system troubleshooting.
1. Check the No. 7 (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse OK?
YES -
Go to step 2.
NO -
Replace the fuse, and recheck.�
2. Measure voltage between body ground and XM receiver connector A (14P) terminals the No. 1 and No. 7 individually.
Is there battery voltage?
YES -
Go to step 3.
NO -
Repair an open in the wire(s) between the No. 7 (7.5 A) fuse in the under-dash fuse/relay box and XM receiver connector A (14P) terminals No. 1 and No. 7.�
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 -
- With navigation system: Go to step 12.
- Without navigation system: Go to step 5.
NO -
Repair an open in the wire between XM receiver connector A (14P) terminal No. 11 and body ground (G501).�
5. Measure the voltage between audio unit connector B (14P) terminal No. 2 and body ground.
Is there 10 V or more present?
YES -
Go to step 6.
NO -
Go to step 8.
6. Turn the ignition switch to LOCK (0).
7. Measure the voltage between audio unit connector B (14P) terminal No. 2 and body ground.
Is there less than 2 V?
YES -
Go to step 8.
NO -
Substitute a known-good audio unit Audio Unit Removal/Installation, and recheck. If less than 2 V is present, replace the original audio unit Audio Unit Removal/Installation.�
8. Turn the ignition switch to LOCK (0).
9. Disconnect audio unit connector B (14P) and XM receiver connector A (14P).
10. Check for continuity between body ground and XM receiver connector A (14P) terminals 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 11.
11. Check for continuity between XM receiver connector A (14P) terminals and audio unit connector B (14P) terminals according to the table.
Is there continuity?
YES -
Substitute a known-good XM receiver XM Receiver Removal/Installation, then reconnect all the connectors and recheck. If the symptom/indication goes away, replace the original XM receiver XM Receiver Removal/Installation. 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 audio unit and the XM receiver.�
12. 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 13.
NO -
Go to step 15.
13. Turn the ignition switch to LOCK (0).
14. Measure the voltage between audio disc changer connector B (14P) terminal No. 2 and body ground.
Is there less than 2 V?
YES -
Go to step 15.
NO -
Substitute a known-good audio disc changer Service and Repair, and recheck. If 2 V or less are present, replace the original audio disc changer Service and Repair.�
15. Disconnect audio disc changer connector B (14P) and XM receiver connector A (14P).
16. Check for continuity between XM receiver connector A (14P) terminal No. 2 and body ground.
Is there continuity?
YES -
Repair a short in the wire between the audio disc changer and the XM receiver.�
NO -
Go to step 17.
17. Check for continuity between XM receiver connector A (14P) terminal No. 2 and audio disc changer connector B (14P) terminal No. 2.
Is there continuity?
YES -
Go to step 18.
NO -
Repair an open in the wire between the audio disc changer and the XM receiver.�
18. Check for continuity between body ground and XM receiver connector A (14P) terminals 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 19.
19. 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(s) between the XM receiver and the navigation unit. Replace the affected shielded harness.�
NO -
Go to step 20.
20. Disconnect the navigation control unit connector C (16P).
21. Check for continuity between XM receiver connector A (14P) terminals and navigation unit connector C (16P) terminals according to the table.
Is there continuity?
YES -
Substitute a known-good XM receiver XM Receiver Removal/Installation, and recheck. If the symptom/indication goes away, replace the original XM receiver XM Receiver Removal/Installation.�
NO -
There is an open in the wire(s) between the XM receiver and the navigation unit. Replace the affected shielded harness.�