C008ATCS Mode Control
- Generic OBD-II code · Chassis
- How the car detects it
- Covers the traction-control mode selector and its input to the ABS/ESC module, used where the driver can choose among traction/terrain modes such as snow, sand, mud or sport that change the slip targets and intervention strategy. This code is set when the mode signal is stuck, implausible, out of range or the circuit is faulty, so the module cannot tell which mode is selected. The module then defaults to a safe mode and may disable mode selection. It differs from the simple on/off disable switch C0089 in that it carries a multi-position mode rather than a single state. Traction-control patents describe mode-dependent slip targets and torque strategies. A fault limits mode selection and sets the ABS/ESC warning lamp while base braking remains.
- What you may notice
- Terrain/traction mode cannot be selected
- System defaults to a safe mode
- ABS/ESC warning lamp on
- Likely causes
- LikelyMode selector signal stuck or implausible
- PossibleOpen or shorted selector circuit
- RareCorroded or loose connector
- Repair
- Easy · Often possible to do yourself.Typical cost: €20 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.