XM Radio Display Is Blank and No Station Information Is Displayed (With XM)

XM radio display is blank and no station information is displayed (with XM)

NOTE: Do not do this procedure if the navigation display buttons are inoperative. Refer to the navigation system troubleshooting.




1. Check the voltage between XM receiver connector A (14P) No. 1 terminal and body ground.

Is there battery voltage?

YES - Go to step 2.

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




2. Check for 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.




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

Is there about 5 V present?

YES - Go to step 4.

NO - Go to step 9.

4. Turn the ignition switch ON (II).




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

Is there less than 0.5 V?

YES - Go to step 6.

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

6. Turn the ignition switch to LOCK (O).
7. Disconnect audio unit connector C (14P) and XM receiver connector A (14P).




8. 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 XM receiver connector A (14P) No. 3 terminal (the harness shield).

Is there continuity?

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

NO - Go to step 9.




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

Is there continuity?

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

NO - Repair open in the wire between audio unit and XM receiver. Error code XM NO SIGNAL or XM ANTENNA is displayed (with XM)