Code C0606 indicates that the vehicle's control module has detected a voltage signal from the steering wheel angle sensor that is below the minimum calibrated threshold. This typically suggests an electrical open or short in the sensor circuit or a failure of the sensor itself.
Internal failure of the sensor's potentiometers or optical encoders causing a low voltage output.
Frayed, pinched, or broken wires in the steering column harness causing a short to ground.
Moisture or debris in the sensor connector leading to poor electrical contact and signal degradation.
A significant mechanical misalignment of the steering wheel relative to the wheels can cause the sensor to report an out-of-range value.
An internal fault in the steering or ABS control module preventing the correct processing of the sensor signal.
Yes. If the steering wheel is not centered relative to the wheels, the sensor may report a value that the computer perceives as a circuit fault.
The vehicle is generally drivable, but critical safety systems like Electronic Stability Control and Traction Control will be disabled.
No. This code is almost always caused by the sensor, wiring, or a calibration issue. The control module is the least likely cause and should only be replaced after the sensor and wiring are verified as functional.