Symptom Troubleshooting

Audio System Symptom Troubleshooting - XM radio display is blank and no station information is displayed (Canada models with navigation)

XM radio display is blank and no station information is displayed (Canada models 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 2.

NO -

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

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





Is there battery voltage?

YES -

Go to step 4.

NO -

Go to step 3.

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





Is there battery voltage?

YES -

Repair an open or a short in the wire(s) between the audio-navigation unit and the XM receiver.�

NO -

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

4. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

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





Is there or move present?

YES -

Substitute a known-good audio-navigation unit Audio-Navigation Unit Removal/Installation, and recheck. If less than 2.0 V are present, replace the original audio-navigation unit.�

NO -

Go to step 6.

6. 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 7.

NO -

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

7. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

8. Disconnect these items:

- Audio-navigation unit connector C (14P)
- HandsFreeLink control unit 28P connector
- XM receiver connector A (14P)
- Navigation display unit 32P connector

9. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

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





Is there less than 0.2 V?

YES -

Go to step 11.

NO -

Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If 0.2 V or less are present, replace the original audio-navigation unit.�

11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

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













Is there continuity?

YES -

Go to step 13.

NO -

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

13. 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-navigation unit and the XM receiver. Replace the affected shielded harness.�

NO -

Go to step 14.

14. 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 wires between the audio-navigation unit and the XM receiver. Replace the affected shielded harness.�

NO -

Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit. If the symptom is still present, substitute a known-good XM receiver XM Receiver Removal/Installation, and recheck. If the symptom/indication goes away, replace the original XM receiver.�