C05C6Brake Pressure Sensor F Circuit Low
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- The signal of pressure sensor F sits below its valid band. Ratiometric 5 V pressure sensors normally output roughly 0.5 to 4.5 V; Denso describes treating 0 to 0.3 V as a fault zone, and with a pull-down resistor at the input a broken supply or signal wire also drags the reading toward zero. Saab/GM sets its brake pressure circuit code when signal or 5 V reference has a ground short or an open lasting 0.1 s and then disables ABS and traction control. No manufacturer publishes C05C6 for sensor F, so the letter-to-sensor mapping is not public. Measure supply, ground and signal at the connector before replacing the sensor. C05C7 is the high side, C05C8 the open circuit, C05C9 the shared supply.
- What you may notice
- ABS, ESC and traction control warning lamps on
- Stability and traction control unavailable
- Likely causes
- LikelySignal wire shorted to ground
- Possible5 V reference interrupted or shorted to ground
- PossibleInternal fault of pressure sensor F
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.