Powertrain, generic (extended)

P2D0D Motor Electronics Coolant Pump C Supply Voltage Circuit

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2D0D flags the supply side of motor electronics coolant pump C: the voltage on its power feed is outside the permitted window or missing. Its counterparts on the command line are P2BD4 (open), P2BD5 (low) and P2BD6 (high), so a technician who sees P2D0D alone should check the fuse, relay, power splice and ground of pump C before touching the signal wire. No manufacturer publicly documents P2D0D. For comparison, Ford's 2019 hybrid summary runs the pump A circuit checks only while system voltage stays between 6 and 19 V, and its 2024 summary lists supply voltage out of range (1C) as an auxiliary pump fault type with an 11 V threshold. CARB requires the electrical monitoring of all inverter cooling outputs. A pump C without a stable feed may stop, so the cooled branch warms and power is limited.

Likely causes

Poor ground or corroded supply terminal at pump C
Blown fuse or faulty relay in the pump C feed
Weak 12 V battery or low DC/DC converter output

Symptoms

  • Warning lamp on
  • Pump C runs intermittently or not at all
  • Other voltage-related codes stored at the same time

Repair estimate

DifficultyMediumDIY possible
Parts and labour€20–600
Time0.4–2.5 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

P2D0EP2BD4P2BD5P2D03P2D08

References: law.cornell.edu, fordservicecontent.com, fordservicecontent.com.