Powertrain, generic (extended)

P2D0C Motor Electronics Coolant Pump C Underspeed

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2D0C tells you that pump C, the third pump of the motor electronics loop, is turning too slowly for longer than its controller accepts. Compared with P2D0A the rotor is free, and compared with P2D0B the problem is lack of speed, not lack of load: think of a dragging bearing, a partly clogged impeller or filter screen, or a feed that cannot hold its voltage while the motor draws current. No manufacturer publicly documents P2D0C. Ford's 2024 summary separates under-speed (B2) from the other auxiliary pump faults and runs the check for 5 s once the battery has at least 11 V; on pump A, Ford's 2020 hybrids record the same failure as P2D02. CARB requires a functional check of inverter cooling outputs where feasible. Rising component temperatures and reduced power follow.

Likely causes

Dragging bearing or internal friction in pump C
Partly clogged impeller or screen in the pump C branch
Voltage drop on feed or ground of pump C under load

Symptoms

  • Warning lamp on
  • Pump C speed below target in live data
  • Higher component temperatures and power limits under load

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€60–900
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

motor electronics coolant pump cpower electronics coolant loop

Related codes

P2D0AP2D0BP2D02P2D07P2BD7

References: fordservicecontent.com, law.cornell.edu, static.nhtsa.gov.