Test I: The Satellite Audio Is Inoperative/Does Not Operate Correctly
PINPOINT TEST I: THE SATELLITE AUDIO IS INOPERATIVE/DOES NOT OPERATE CORRECTLYNormal Operation
The satellite radio receiver receives voltage through circuit SBP03 (BU/RD), and ground through circuit GD103 (BK/BU). Digital signals are received by the satellite antenna and sent to the satellite radio receiver. The audio signals are then sent to the DVD player, if equipped, or directly to the audio unit.
It is important to note that a concern in the satellite radio antenna may cause the satellite audio to be inoperative, although the satellite information on the audio unit screen works correctly. If there is a concern with the satellite radio antenna, DTC B1031 or B1032 should set. Be sure to verify the integrity of the satellite radio antenna and cable before carrying out this pinpoint test.
DTC U0184 (Lost Communication With Radio [ACM]) - sets when the satellite radio receiver is missing messages from the audio unit for greater than 5 seconds. This results in loss of satellite radio functionality.
DTC U0193 (Lost Communication With Digital Audio Control Module [SDARS]) - sets when the audio unit (or DVD player) is missing messages from the satellite radio receiver for greater than 5 seconds. This results in loss of satellite radio functionality.
DTC U0196 (Lost Communication With Entertainment Control Module - Rear [AUX]) - sets when the satellite radio receiver is missing messages from the DVD player for greater than 5 seconds. This results in loss of satellite radio functionality.
This pinpoint test is intended to diagnose the following:
- Subscription status
- Wiring, terminals or connectors
- Satellite radio receiver
- DVD player (if equipped)
- Audio unit