XM Radio Display Is Blank and No Station Information Is Displayed (Canada Models, USA Models Without Navigation)

XM radio display is blank and no station information is displayed (Canada models, USA models without navigation)

1. Turn the ignition switch ON (II).




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

Is there battery voltage?

YES - Go to step 3.

NO - Repair open in the wire between No. 7 (7.5 A) fuse in the under-dash fuse/relay box and XM receiver connector A (14P) terminal No. 1.




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

Is there less than 0.1 V?

YES - Go to step 4.

NO - Repair open in the wire between audio unit connector B (14P) terminal No. 2 and XM receiver connector A (14P) terminal No. 2. If the wire is OK, substitute a known-good audio unit and recheck.




4. 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 5.

NO - Repair open in the wire between XM receiver connector A (14P) terminal No. 11 and body ground (G604).

5. Turn the ignition switch OFF.
6. Disconnect audio unit connector B (14P), XM receiver connector A (14P), also disconnect navigation unit connector A (20P), display panel control unit connector E (22P) for Canada models with navigation.




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

Is there continuity?

YES - Go to step 8.

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




8. Check for continuity between the 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 (14P) No. 3 terminal (the harness shield).

Is the continuity?

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

NO - Substitute a known-good XM receiver, then reconnect all of the connectors and recheck. If the symptom/indication goes away, replace the original XM receiver. If the symptom/indication is still present, replace the audio unit.