C0606Steering Wheel Angle Sensor Circuit Low
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C0606 flags a steering angle signal or sensor supply that reads too low, as caused by a short to ground, a sagging supply or an output stuck at the bottom of its range. In the Kelsey-Hayes design the two phase lines swing between roughly 0.6 V and 4.4 V on a 5 V feed, and anything below the lower band is a fault; Bosch's PWM sensor maps −720° to +720° onto 10–90 % duty cycle, so a line pinned to ground leaves that window, and the patent lists a short to ground as detectable. Sensors that talk over CAN, such as the Bourns type 6002 running on 8–18 V, report their errors on the bus instead. No maker documents C0606 publicly. Stability control shuts down; after repair the centre position may need relearning.
- What you may notice
- ESC warning lamp on and stability control unavailable
- Steering angle in scan data pinned at one end value
- Driver assistance messages about limited function
- Likely causes
- LikelySignal wire chafed against the steering column and shorted to ground
- PossibleLow sensor supply from a weak battery or a damaged feed circuit
- PossibleSensor output stage failed low
- Repair
- Medium · Usually a job for a workshop.Typical cost: €40 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.