Test F: The Satellite Audio Is Inoperative/Does Not Operate Correctly

PINPOINT TEST F: THE SATELLITE AUDIO IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

Normal Operation
The satellite digital audio receiver system (SDARS) module receives voltage through circuit 729 (RD/WH), and ground through circuit 1204 (BK/OG). Digital signals are received by the satellite antenna and sent to the SDARS module, which then provides audio signals to the audio control module (ACM). The SDARS module and the ACM communicate using the medium speed controller area network (MS-CAN) through circuits 1847 (WH/OG) and 1848 (PK/OG).

It is important to note that a concern in the satellite radio antenna may cause the satellite audio to be inoperative. However, if there is a concern with the satellite radio antenna, DTCs B1031 or B1032 should set. Make 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 SDARS module is missing messages from the ACM 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 ACM is missing messages from the SDARS module 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
- SDARS module
- ACM

F1-F4:

F4-F6: