A fault code doesn’t yet mean the unit or sensor itself is faulty: often it’s the plug and connector leading to it.
Possible causes
- A fault in the engine control unit makes it switch traction control off
- The CAN bus between the units
What you can do yourself
- ESP and traction control, and sometimes ABS, may not work. The brakes still work, but without electronic help — on slippery roads brake smoothly and don’t accelerate hard.
- Read the engine control unit codes: ESP and traction control often switch off because of an engine or throttle fault.
Stop and don’t drive on if:
- The red brake light is on, or the brake pedal feels soft or sinks
- The steering became very heavy, or the car pulls to one side when braking
The explanation comes from the error code reference in the AvtoElektrik PRO app.