C0532Motor Control A Circuit High
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Motor control A reads high: a motor output sits near supply voltage although the driver commands it low or off. That points to a short to battery voltage in the motor leads or a high-side switch that no longer opens. J2012 leaves the motor unnamed and no manufacturer publication assigning C0532 was found. Bosch's US5329238 compares each terminal with limits scaled to the measured supply and treats an exceeded upper limit as a short to plus, after which drive is cut in one or both directions; TI's DRV8873-Q1 guards against shorts to battery with overcurrent protection that disables the affected half-bridge. If the motor stays energised it may run on or overheat; otherwise the function simply drops out with its warning lamp.
- What you may notice
- Warning lamp of the affected system on
- Motor A runs on or gets hot
- Likely causes
- LikelyMotor lead chafed against a live wire
- PossibleHigh-side switch in the control unit stuck on
- RareMoisture bridging pins in the connector
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.