Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Audio Control Module (ACM) DTC Chart
2008 Mazda Tribute s Sport, 4WDSECTION Audio Control Module (ACM) DTC Chart
WARNING: This page is about a different variant/trim than selected.
AUDIO CONTROL MODULE (ACM) DTC CHART
| DTC | Description | Action |
|---|---|---|
| B1119 | Audio Disc DVD Player Thermal Shutdown | The audio control module (ACM) was over temperature. Audio operation will resume after the ACM cools. This is normal operation. CLEAR the DTCs. |
| B1140 | Map Disk Invalid | REMOVE the map DVD and CLEAN it. INSPECT for scratches, fingerprints, or damage, and REPAIR as necessary. VERIFY a valid map DVD is being used. If no concern is found, INSERT a known good map DVD. REPEAT the self-test.
|
| B1342 | ECU is Faulted | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new ACM. See AUDIO CONTROL MODULE (ACM) REMOVAL/INSTALLATION - HYBRID . TEST the system for normal operation. |
| B2204 | GPS Antenna Connection Open or Short | See PINPOINT TEST 1: NO GLOBAL POSITIONING SYSTEM (GPS) ANTENNA SIGNAL - HYBRID . |
| B2656 | DVD (Digital Versatile Disk) Error |
NOTE:
DTC B1342 will also be set.
INSTALL a new ACM. See AUDIO CONTROL MODULE (ACM) REMOVAL/INSTALLATION - HYBRID . TEST the system for normal operation. |
| B2924 | Audio Button Stuck | Using the hardkey test, VERIFY no ACM buttons are stuck and that no ACM button is pressed during the self-test. CLEAR the DTCs. REPEAT the self-test. If DTC B2924 is retrieved again, INSTALL a new ACM. See AUDIO CONTROL MODULE (ACM) REMOVAL/INSTALLATION - HYBRID . TEST the system for normal operation. |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module |
NOTE:
If no related concern is currently present, disregard the DTC. If the speed sensitive volume does not operate correctly, see PINPOINT TEST 6: THE SPEED SENSITIVE VOLUME DOES NOT OPERATE CORRECTLY
.If the navigation is inaccurate, see PINPOINT TEST 3: THE POSITION CURSOR IS INACCURATE - HYBRID . |
| U2473 | Unexpected Vehicle Speed (VSS) | See PINPOINT TEST 3: THE POSITION CURSOR IS INACCURATE - HYBRID . |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.