XM Radio Display Is Blank and No Station Information Is Displayed (Without AcuraLink)

XM radio Display is blank and no station information is displayed (Without AcuraLink)

NOTE:
- Check the vehicle battery condition first.
- Always check the connectors for poor connections or loose terminals.

1. Turn the ignition switch to ON (II).
2. Measure the voltage between XM receiver connector A (14P) No. 1 terminal and body ground.






Is there battery voltage?

YES - Go to step 3.

NO - Repair open in the wire between XM receiver connector A (14P) No. 1 terminal and audio unit connector B (14P) No. 1 terminal.

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






Is there less than 0.1 V?

YES - Go to step 3.

NO - Repair open in the wire between XM receiver connector A (14P) No. 11 terminal and audio unit connector B (14P) No. 11 terminal.

4. Turn the ignition switch to ON (II).
5. Measure the voltage between XM receiver connector B (14P) No. 2 terminal and body ground.






Is there 10 V or more present?

YES - Go to step 6.

NO - Substitute a known-good XM receiver and recheck. If 10 V or more are present, replace the original XM receiver.

6. Turn the ignition switch to ON (II).
7. Measure the voltage between audio unit connector B (14P) No. 2 terminal and body ground.






Is there less than 0.5 V?

YES - Go to step 8.

NO - Substitute a known-good audio unit and recheck. If 0.5 V or less are present, replace the original audio unit.

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 audio unit connector B (14P) and XM receiver connector A (14P) as shown.






Is there continuity?

YES - Go to step 11.

NO - Repair open in the wire(s) between the audio unit and XM receiver.

11. Check for continuity between XM receiver connector A (14P) and body ground as shown.






Is there continuity?

YES - Repair short to body ground in the wire(s) between the audio unit and XM receiver.

NO - Go to step 12.

12. 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 - Repair short in the wire(s) between the audio unit and XM receiver (replace the appropriate shielded harness).

NO - Substitute a known-good audio unit 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 and recheck. If the symptom/indication goes away, replace the original XM receiver.