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 Front Control Module (ACM)
| DTC | Description | Action |
|---|---|---|
| B1A01:01 | Speaker #1: General Electrical Failure |
|
| B1A01:11 | Speaker #1: Circuit Short To Ground |
|
| B1A01:12 | Speaker #1: Circuit Short To Battery |
|
| B1A01:13 | Speaker #1: Circuit Open |
|
| B1A02:01 | Speaker #2: General Electrical Failure |
|
| B1A02:11 | Speaker #2: Circuit Short To Ground |
|
| B1A02:12 | Speaker #2: Circuit Short To Battery |
|
| B1A02:13 | Speaker #2: Circuit Open |
|
| B1A03:01 | Speaker #3: General Electrical Failure |
|
| B1A03:11 | Speaker #3: Circuit Short To Ground |
|
| B1A03:12 | Speaker #3: Circuit Short To Battery |
|
| B1A03:13 | Speaker #3: Circuit Open |
|
| B1A04:01 | Speaker #4: General Electrical Failure |
|
| B1A04:11 | Speaker #4: Circuit Short To Ground |
|
| B1A04:12 | Speaker #4: Circuit Short To Battery |
|
| B1A04:13 | Speaker #4: Circuit Open |
|
| B1A06:01 | Speaker #6: General Electrical Failure | GO to PINPOINT TEST I |
| B1A06:11 | Speaker #6: Circuit Short To Ground | GO to PINPOINT TEST I |
| B1A06:12 | Speaker #6: Circuit Short To Battery | GO to PINPOINT TEST I |
| B1A06:13 | Speaker #6: Circuit Open | GO to PINPOINT TEST I |
| B1A56:21 | Antenna: Signal Amplitude < Minimum | If DTC B1A56:21 sets after running the bezel diagnostic tests, DISREGARD this DTC . This test is used for end of line or repair bay testing at the Ford plant. Each plant has its own assigned frequency and signal strength requirements. The running and passing of this test depends on local radio stations. If no local station is broadcasting on the required frequency, the test will fail. |
| B1A89:11 | Satellite Antenna: Circuit Short To Ground |
|
| B1A89:13 | Satellite Antenna: Circuit Open |
|
| B1D19:49 | Compact Disc Unit: Internal Electronic Failure |
|
| B1D19:4B | Compact Disc Unit: Over Temperature | The ACM was over temperature. This may occur during extended use. Audio operation can resume after the ACM cools. CLEAR the DTC . This is normal operation. |
| U0155:00 | Lost Communication With IPC Control Module: No Sub Type Information | GO to PINPOINT TEST AI |
| U0253:00 | Lost Communication With Accessory Protocol Interface Module: No Sub Type Information | GO to PINPOINT TEST AM |
| U0256:00 | Lost Communication With Front Controls Interface Module "A": No Sub Type Information | GO to PINPOINT TEST AN |
| U0257:00 | Lost Communication With Front Control/Display Interface Module: No Sub Type Information |
NOTE:
Despite the description, this DTC
applies to the FDIM
, not the FCDIM
. GO to PINPOINT TEST AO |
| U201A:51 | Control Module Main Calibration Data: Not Programmed |
|
| U2100:00 | Initial Configuration Not Complete: No Sub Type Information |
|
| U2101:00 | Control Module Configuration Incompatible: No Sub Type Information |
|
| U3000:41 | Control Module: General Checksum Failure |
|
| U3000:42 | Control Module: General Memory Failure |
|
| U3000:96 | Control Module: Component Internal Failure |
|
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to PINPOINT TEST AQ |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to PINPOINT TEST AR |
NO RELATED
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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.