C052EABS Pump Motor Control Circuit Low
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Low counterpart of C052D: the pump motor control signal stays near ground when it should rise, pointing to a short to ground on the control side, a failed driver stage or a weak ground path of the hydraulic unit. No maker documents C052E publicly. In the Bosch patent US5329238 a terminal below the lower threshold is treated as a short to minus, and the drive is limited or switched off. Ford traced its older pump code C0020 on 2020 Explorer, Aviator and Police Interceptor Utility (bulletin 20-2364) to bad ground contact at G108, partly due to unsuitable bolt plating, and replaced the fasteners instead of the module, a reminder to check grounds first. While the code is active the pump cannot run on demand, so ABS and stability control are disabled.
- What you may notice
- ABS and ESC warning lamps on
- ABS and stability control unavailable
- Likely causes
- LikelyPoor ground connection of the ABS unit or hydraulic block
- PossibleControl line or motor lead shorted to ground
- PossibleDriver stage in the ABS control unit failed
- Repair
- Hard · Usually a job for a workshop.Typical cost: €50 – €2,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.