Code Definition

C1254 — ABS Inlet Valve Coil RR Circuit Failure

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Ford

About C1254

C1254 is a manufacturer-specific chassis diagnostic trouble code recorded for Ford vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1254 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1254 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Anti-lock Brake System (ABS) module energises individual solenoid coils inside the Hydraulic Control Unit (HCU) to modulate brake pressure at each wheel during ABS, traction control, or stability control events. DTC C1254 sets when the ABS module detects an electrical fault in the Right Rear (RR) inlet valve coil circuit, typically an open winding, internal short, or driver stage problem. The inlet valve normally allows pressurised fluid from the master cylinder into the right rear wheel circuit, and the module verifies coil resistance and driver feedback during the key on self test and co...

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