C0605Steering Wheel Angle Sensor Circuit/Open
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- The steering wheel angle sensor tells the stability system how far and how quickly the driver turns. C0605 means its circuit is open or no usable signal arrives at all: a broken supply, ground or signal wire, an unplugged connector or a dead sensor. In a Bosch patent for a PWM-output sensor, the control unit treats the signal as missing when no high level appears within one PWM period; a Kelsey-Hayes patent declares an open or short once the phase lines stay out of range for about 5 ms and blocks yaw control. Bosch's GMR sensor today sends angle and rate over CAN. No maker publishes C0605 with this meaning; GM's PI0954 used C0605 on the 2010 Buick LaCrosse for a suspension accelerometer, an unrelated older assignment.
- What you may notice
- ESC/stability control warning lamp on, system off
- Traction control and lane or parking assistants may be unavailable
- Steering angle reads zero or not available in scan data
- Likely causes
- LikelyConnector at the steering column loose or not latched after airbag or column work
- PossibleBroken supply, ground or signal wire in the column harness
- PossibleSteering angle sensor electronics failed
- 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.