Audio Front Control Module (ACM) - Without Navigation
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| B1117 | Audio Steering Wheel Button Stuck | GO to Pinpoint Test U . |
| B1318 | Battery Voltage Low | GO to Pinpoint Test AH . |
| 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 Audio Front Control Module (ACM). REFER to Audio Control Module (ACM)
. TEST the system for normal operation. |
| B2103 | Antenna Not Connected | GO to Pinpoint Test A . |
| B2404 | Audio Steering Wheel Switch Circuit Fault | GO to Pinpoint Test U . |
| B2405 | Audio Disc CD Player Thermal Shutdown Fault | The ACM was over-temperature. This may occur during extended use. Audio operation can resume after the ACM cools. CLEAR the DTCs. This is normal operation. |
| B2406 | Audio Disc CD Player Internal Fault |
NOTE:
DTC B1342 may also be set. CLEAR the DTCs. REPEAT the self-test. If DTC B2406 is retrieved again, INSTALL a new ACM
. REFER to Audio Control Module (ACM)
. TEST the system for normal operation. |
| B2477 | Module Configuration Failure | REFER to MODULE CONFIGURATION . |
| B2924 | Audio Button Stuck | GO to Pinpoint Test Y . |
| B2965 | Audio System Speaker Circuit Fault | For vehicles with a bench seat, GO to Pinpoint Test B
. For Expedition without a bench seat, GO to Pinpoint Test C . For Navigator, GO to Pinpoint Test E . |
| U0140 | Lost Communication With Body Control Module (GEM ) | GO to Pinpoint Test AR . |
| U0155 | Lost Communication With Instrument Panel Cluster (IC ) Control Module | GO to Pinpoint Test AS . |
| U0159 | Lost Communication With Parking Assist Control Module (PAM ) | GO to Pinpoint Test AB . |
| U0193 | Lost Communication With Digital Audio Control Module (SDARS ) (Navigators without navigation) | GO to Pinpoint Test AU . |
| U0197 | Lost Communication With Telephone Control Module | GO to Pinpoint Test AM . |
| U0238 | Lost Communication With Digital Audio Control Module "D" (DSP ) |
NOTE:
This DTC only applies to Navigator. For Expedition, disregard the DTC. GO to Pinpoint Test G
. |
| U0249 | Lost Communication With Entertainment Control Module - Rear "B" (RCU ) | GO to Pinpoint Test AN . |
| U2050 | No Application Present | REFER to MODULE CONFIGURATION . |
| U2051 | One or More Calibration Files Missing/Corrupt | REFER to MODULE CONFIGURATION . |