Code Definition

C1248 — ABS Outlet Valve Coil RR Circuit Short To Battery

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

About C1248

C1248 is a manufacturer-specific chassis diagnostic trouble code. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1248 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

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.

C1248 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 controls each wheel circuit's outlet valve by switching the low side of the coil to ground while the high side is fed from internal module power. DTC C1248 is set when the module detects that the Right Rear (RR) outlet valve coil drive circuit is shorted to battery voltage, meaning the low side of the coil is being held high when the module is trying to ground it. This is almost always a fault in the coil winding, the module to HCU interface, or the internal module driver, since on most systems the coil drive wires do not leave the ABS module / HCU assem...

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