C0002TCS Control Channel A Valve 2
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C0002 points to the second traction control valve of channel A. Together with valve 1 it forms the valve pair a TCS modulator adds to each brake circuit: an isolation valve that cuts the circuit off from the master cylinder and a priming valve that opens the path from the master cylinder to the return pump, so pressure can rise at a driven wheel while the pedal is released. The public record does not say which of the pair J2012 calls valve 2. The module flags an open or shorted coil, an implausible current or a pressure response that does not match the command. Traction and stability control are switched off and the ABS or ESC lamp comes on; foundation braking still works. No manufacturer documents this code publicly.
- What you may notice
- ABS warning lamp on
- Traction and stability control disabled
- Normal braking retained without ABS
- Likely causes
- LikelySolenoid coil open or shorted
- PossibleCorroded or chafed wiring to the modulator
- RareInternal hydraulic modulator fault
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €1,600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.