Code Definition

C1301 — Mismatch Between Brake Pedal Position and Brake Pressure Sensor Signals

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

About C1301

C1301 is a manufacturer-specific chassis diagnostic trouble code recorded for Citroen vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1301 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

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.

C1301 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 ABS and ESP control module on Citroen vehicles uses both a brake pedal position sensor and a hydraulic brake pressure sensor (located within the ABS modulator) to validate driver braking demand for stability control, brake assist, and electronic brake force distribution. DTC C1301 is set when the module detects a sustained discrepancy between the measured pedal travel and the hydraulic brake pressure that exceeds calibrated correlation thresholds during a brake apply or release event. The pedal position sensor is typically a hall effect or potentiometer style device mounted at the pedal as...

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