C053DBrake Pressure Sensor A Range/Performance
- Generic OBD-II code · Chassis
- Turns on the check-engine light
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- The brake pressure sensor A signal is electrically present, but its value does not fit the braking situation. GM stores C053D in the brake system control module, calling it a circuit performance fault: on 2019 Silverado/Sierra 1500 drivers got a hard pedal plus the Service Brake Assist warning (PIT5638), and bulletin 20-NA-073 lists it among faults that drop the brake-by-wire system into its mechanical Push-Thru mode; the fix is BSCM software. Stellantis logs it as Brake Pressure Sensor 1 Performance in the PCM of the 2023 Grand Cherokee, where the PCM compares the sensor with the pedal position sensor inside the BSCM; remedy is a PCM flash or an ABS initialization. Mitsubishi maps C106C-02 to it (Outlander PHEV 2023, ASC lamp plus MIL after two trips).
- What you may notice
- Brake assist or stability control warning shown
- Brake pedal hard or travelling further than usual
- Check-engine lamp on some models
- Likely causes
- LikelyBrake or engine control software with an over-sensitive plausibility check (several bulletins)
- PossiblePressure and pedal sensors not initialized after module or hydraulic unit replacement
- PossibleAir in the brake lines distorting the pressure build-up
- RareStop-light switch or pedal sensor delivering a mismatching reference
- RareDrifting pressure sensor in the hydraulic unit
- Repair
- Hard · Usually a job for a workshop.Typical cost: €80 – €1,800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.