C064EBrake Pressure Sensor N Circuit High
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- The signal of sensor N is above its permitted maximum. What the brake does next is described well for truck EBS: WABCO checks every analog pressure sensor signal against its authorised values; if one is lost, the module may keep producing electrical brake pressure by auxiliary means with limited accuracy, and if electronic control is impossible the axle falls back on purely pneumatic backup braking. For digital sensors the equivalent of a high reading is often a value pinned at full scale or a fault flag; Pico Technology notes that SENT frames carry a status nibble with diagnostic information and a CRC the receiver checks. C064E has no documented user, and nobody publishes which sensor N would be. Likely: short to supply, lost ground, failed sensor.
- What you may notice
- Brake or ESC warning lamp on
- Less precise brake pressure control or pure backup braking
- Likely causes
- LikelySignal shorted to sensor supply or battery voltage
- PossibleOpen sensor ground
- RareSensor electronics reporting full scale or an internal fault
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €1,600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.