C052FABS Pump Motor Supply Voltage Circuit/Open
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- The pump motor has its own battery feed, separate from the logic supply, and this code reports that feed as missing or open. Mitsubishi's 2023 Outlander PHEV manual shows the layout: motor and motor relay draw from a 60 A fusible link and must see 10–16 V at the unit connector, the valves from a separate 50 A link, the electronics from a 5 A fuse. Mitsubishi itself reports such a loss through its pump motor code and lists fuse, fusible link and 12 V battery as causes, not via C052F. An AlliedSignal patent (now Bosch) logs a separate fault when the motor voltage at switch-off is below about 7 V. Because the electronics stay powered, the module still communicates and lights the ABS lamp while the pump is dead.
- What you may notice
- ABS and ESC warning lamps on
- Pump motor never runs, ABS and stability control off
- Likely causes
- LikelyPump motor fuse or fusible link blown
- PossibleCorroded or loose battery feed terminal at the ABS connector
- PossibleOpen or high-resistance ground of the ABS unit
- Repair
- Medium · Often possible to do yourself.Typical cost: €10 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.