C0560Brake Pressure Sensor A Missing Calibration
- Generic OBD-II code · Chassis
- Turns on the check-engine light
- Can trigger limp mode
- How the car detects it
- The brake module expects stored calibration data for pressure sensor A, normally the master cylinder pressure sensor: zero offset, sensor identity and a flag that the end-of-line or service calibration succeeded. C0560 means this data is absent or does not match the fitted sensor. GM's 2019 and 2025 tables check only the stored status, 500 ms after wake-up, Type A with MIL; GM's 2016 hybrid tables also call it when a test pulse reads above 110 % or below 90 %. Ford hybrids set it when checksum or sensor ID stored in sensor and module disagree (150 or 70 ms). Mitsubishi has a similar uncalibrated sensor code without SAE number (C105E-92). It typically follows a module or hydraulic unit swap; the scan tool calibration usually clears it.
- What you may notice
- ABS, traction or stability lamp on after brake repair
- Brake assist or stability functions unavailable
- Check-engine lamp on some GM models
- Likely causes
- LikelyPressure sensor calibration skipped after replacing the brake module or hydraulic unit
- PossibleCalibration interrupted, e.g. pedal touched or voltage dropped during the routine
- PossibleUsed or wrong hydraulic unit whose sensor data do not match the module
- RareNon-volatile memory error in the brake module
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.