Audio Control Module (ACM)
AUDIO CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| B1031 | SDARS Satellite Antenna Open | See PINPOINT TEST 12: POOR RECEPTION/POOR SOUND QUALITY/NO SOUND - SATELLITE AUDIO . |
| B1032 | SDARS Satellite Antenna Short | See PINPOINT TEST 12: POOR RECEPTION/POOR SOUND QUALITY/NO SOUND - SATELLITE AUDIO . |
| B1318 | Battery Voltage Low | See PINPOINT TEST 14: DTC B1318 (AUDIO CONTROL MODULE [ACM]) . |
| B1342 | ECU is Faulted |
NOTE:
DTC B1342 can set as a result of a speaker circuit fault. In this case, DTC B2965 should also set. Make sure to repair the speaker circuit fault before diagnosing DTC B1342. CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is the only DTC retrieved again, INSTALL a new ACM. See AUDIO CONTROL MODULE (ACM) REMOVAL/INSTALLATION
. TEST the system for normal operation. |
| B2103 | Antenna Not Connected | See PINPOINT TEST 1: POOR RECEPTION - AM/FM . |
| B2406 | Audio Disc CD Player Internal Fault |
NOTE:
DTC B1342 will also be set. CLEAR the DTCs. REPEAT the self-test. If DTC B2406 is retrieved again, INSTALL a new ACM. See AUDIO CONTROL MODULE (ACM) REMOVAL/INSTALLATION
. TEST the system for normal operation. |
| B2477 | Module Configuration Failure | See MODULE CONFIGURATION . |
| B2965 | Audio System Speaker Circuit Fault | See PINPOINT TEST 2: POOR QUALITY/DISTORTED/NO SOUND FROM ONE OR MORE SPEAKERS (NOT ALL SPEAKERS) . |
| U0140 | Lost Communication With Body Control Module (GEM) | See PINPOINT TEST 13: DTC U0140 . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | See PINPOINT TEST 6: THE SPEED SENSITIVE VOLUME DOES NOT OPERATE CORRECTLY . |
| U0193 | Lost Communication With Digital Audio Control Module (SDARS) | See PINPOINT TEST 11: THE SATELLITE RADIO IS INOPERATIVE/DOES NOT OPERATE CORRECTLY - VEHICLES WITH EXTERNAL SATELLITE RADIO RECEIVER . |
| U0255 | Lost Communication With Front Controls Interface Module | See PINPOINT TEST 8: THE AUDIO SYSTEM DOES NOT OPERATE CORRECTLY FROM THE FRONT CONTROLS INTERFACE MODULE (FCIM) . |
| U0256 | Lost Communication With Front Display Interface Module | See PINPOINT TEST 10: AN INDIVIDUAL FRONT DISPLAY INTERFACE MODULE (FDIM) DISPLAY IS INOPERATIVE/DOES NOT OPERATE CORRECTLY . |
| U2050 | No Application Present | See MODULE CONFIGURATION . |
| U2051 | One or More Calibration Files Missing / Corrupt | See MODULE CONFIGURATION . |