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.
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HOMESERVICE MANUALSFORD2010FUSION SEL, 2.5 AREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONDTC INDEXEXTERIOR LIGHTING DTCSHEADLAMP CONTROL MODULE (HCM)
2010 Ford Fusion SEL, 2.5 A
Headlamp Control Module (HCM)
2010 Ford Fusion SEL, 2.5 ASECTION Headlamp Control Module (HCM)
HEADLAMP CONTROL MODULE (HCM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| B1A98:88 | LIN Bus Circuit #1: Bus off | Go To PINPOINT TEST AA . |
| B1D64:01 | Left Headlamp Swivelling Motor: General Electrical Failure | INSTALL a new LH headlamp assembly. REFER to Removal and Installation . CLEAR the DTCs. REPEAT the self-test. |
| B1D64:87 | Left Headlamp Swivelling Motor: Missing Message | Go To PINPOINT TEST AB . |
| B1D65:01 | Right Headlamp Swivelling Motor: General Electrical Failure | INSTALL a new RH headlamp assembly. REFER to Removal and Installation . CLEAR the DTCs. REPEAT the self-test. |
| B1D65:87 | Right Headlamp Swivelling Motor: Missing Message | Go To PINPOINT TEST AB . |
| U0001:88 | High Speed CAN Communication Bus: Bus off | REFER to MODULE COMMUNICATIONS NETWORK . |
| U0100:87 | Lost Communication With ECM/PCM "A": Missing Message | Go To PINPOINT TEST AC . |
| U0101:87 | Lost Communication With TCM: Missing Message | Go To PINPOINT TEST AD . |
| U0121:87 | Lost Communication With Anti-Lock Brake System (ABS) Control Module: Missing Message | Go To PINPOINT TEST AE . |
| U0126:87 | Lost Communication With Steering Angle Sensor Module: Missing Message | Go To PINPOINT TEST AF . |
| U0155:87 | Lost Communication with Instrument Panel Cluster (IPC) Control Module: Missing Message | Go To PINPOINT TEST AG . |
| U0401:86 | Invalid Data Received From ECM/PCM A: Signal Invalid | DTC U0401:86 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the PCM and other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U0402:86 | Invalid Data Received from TCM: Signal Invalid | DTC U0401:86 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the TCM and other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U0415:86 | Invalid Data Received From Anti-Lock Brake System (ABS) Control Module: Signal Invalid | DTC U0401:86 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the ABS module and other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U0423:86 | Invalid Data Received From Instrument Panel Control Module: Signal Invalid | DTC U0401:86 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the Instrument Panel Cluster (IPC) and other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U0428:86 | Invalid Data Received From Steering Angle Sensor Module: Signal Invalid | DTC U0401:86 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the Power Steering Control Module (PSCM) and other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U3000:04 | Control Module: System Internal Failure | INSTALL a new Headlamp Control Module (HCM). REFER to Removal and Installation . |
| U3000:46 | Control Module: Calibration/Parameter Memory Failure | INSTALL a new Headlamp Control Module (HCM). REFER to Removal and Installation . |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | Go To PINPOINT TEST AH . |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | Go To PINPOINT TEST AI . |
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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.