C0572Brake Pressure Sensor C Circuit High
- Generic OBD-II code · Chassis
- Turns on the check-engine light
- Can trigger limp mode
- How the car detects it
- C0572 marks the upper end of the same sensor C channel: the pressure signal is at or above its top limit. GM's 2016–2019 hybrid brake modules check the signal voltage against the supply voltage and set the code when the two are practically equal for 0.1 s. The 2019 EBCM uses more than 95.24 % of supply voltage and explicitly includes an open signal line, so GM has no separate open-circuit code for this sensor. In the 2023 and 2025 tables the SENT master cylinder sensor reporting its maximum of 30,000 kPa for 0.96 s triggers it. All variants are Type A with MIL. A short to the reference voltage is the usual wiring cause; since the module would otherwise see heavy braking that is not happening, it stops trusting the sensor and limits brake functions.
- What you may notice
- Check engine light plus ABS or stability lamp (GM)
- Scan tool shows high brake pressure with the pedal released
- Brake assist and regenerative braking restricted
- Likely causes
- LikelySignal line shorted to the 5 V reference or another supply
- PossibleOpen signal line pulled high by the module input (GM counts this here)
- PossiblePressure sensor reporting full scale because of an internal fault
- Repair
- Hard · Usually a job for a workshop.Typical cost: €60 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.