Audio Front Control Module (ACM)
AUDIO FRONT CONTROL MODULE (ACM) DTC CHART
| DTC | Description | Action |
|---|---|---|
| B1342 | ECU is Faulted |
NOTE:
Repair all other DTCs first before diagnosing DTC B1342. CLEAR the DTCs. REPEAT the self-test. If only DTC B1342 is retrieved again, INSTALL a new Audio Front Control Module (ACM). REFER to AUDIO CONTROL MODULE (ACM)
. TEST the system for normal operation. |
| B1117 | Audio Steering Wheel Button Stuck | GO to PINPOINT TEST D . |
| B1318 | Battery Voltage Low | GO to PINPOINT TEST T . |
| B2404 | Audio Steering Wheel Switch Circuit Fault | If equipped with steering wheel controls, GO to PINPOINT TEST D . If not equipped with steering wheel controls, DISREGARD the DTC. |
| 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 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 SYSTEM . |
| B2965 | Audio System Speaker Circuit Fault | GO to PINPOINT TEST B . |
| C1992 | Vehicle Speed Circuit Failure | GO to PINPOINT TEST O . |
| U2050 | No Application Present | REFER to MODULE CONFIGURATION SYSTEM . |
| U2051 | One or More Calibration Files Missing/Corrupt | REFER to MODULE CONFIGURATION SYSTEM . |