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:
- Always check the connectors for poor connections or loose terminals.
- If you can only tune to channel 000,001,174, and 247, make sure the audio unit is set to channel mode (see owners manual), if it is set to channel mode, call XM Satellite Radio customer support and check the account activation status.

1. Turn the ignition switch to LOCK (0).
2. Disconnect XM receiver connector A (14P).




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 open in the wire between fuse No. 5 (7.5 A) in the driver's under-dash fuse/relay box and XM receiver connector A (14P) terminal No. 1.

4. Turn the ignition switch ON (II).




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

Is there battery voltage?

YES - Go to step 6.

NO - Repair open in the wire between audio unit connector C (14P) terminal No. 2 and XM receiver connector A (14P) terminal No. 2.

6. Reconnect the XM receiver connector A (14P).




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

Is there less than 0.1 V?

YES - Go to step 8.

NO - Repair open in the wire between XM receiver connector A (14P) terminal No. 11 and body ground (G602).

8. Disconnect audio unit connector C (14P), XM receiver connector A (14P), navigation unit connector A (20P), and display panel control unit connector (20P).




9. Check for continuity between XM receiver connector A (14P) and body ground according to the table. Then check for continuity between the same terminals listed in the table and the XM receiver connector A (20P) No. 18 terminal (the harness shield).

Is there continuity?

YES - Repair short in the appropriate wire between the audio unit and the XM receiver or replace the appropriate shielded harness.

NO - Go to step 10.




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

Is there continuity?

YES - Go to step 11.

NO - Repair open in the appropriate wire between the audio unit and the XM receiver.




11. Check for continuity between XM receiver connector A (14P) and navigation unit connector A (20P) according to the table.

Is there continuity?

YES - Go to step 12.

NO - Repair open in the appropriate wire between navigation unit and the XM receiver.




12. Check for continuity between XM receiver connector A (14P) and the display panel control unit (20P) connector according to the table.

Is there continuity?

YES - Substitute a known-good XM receiver, then reconnect all of the connectors and recheck. If the symptom/indicated goes away, replace the original XM receiver. If the symptom/indicated is still present replace the audio unit.

NO - Repair open in the appropriate wire between the display panel control unit and the XM receiver.