C0535Motor Control B Range/Performance
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Second motor channel B fails its plausibility check: wiring and supply test fine, yet the motor's reaction to commands is wrong, for example too little speed, a delayed start or no stop. Where a controller drives two motors or two channels, A and B separate them; J2012 does not say which motor B is, and no manufacturer publicly assigns C0535, so the meaning must come from the vehicle's own service data. How such a check can work is shown by an AlliedSignal patent now held by Bosch: after shut-off a spinning DC motor acts as a generator, and a voltage collapse faster than roughly 134 V/s means it never really turned. Causes lie mostly in the motor or the driven mechanism; the channel A counterpart is C0530.
- What you may notice
- Warning lamp of the affected system on
- Function of motor B slow, incomplete or unavailable
- Likely causes
- LikelyDriven mechanism of motor B binding or blocked
- PossibleMotor B worn and too slow
- RareFaulty speed or position feedback in the control unit
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.