Powertrain, generic (extended)

P2D04 Motor Electronics Coolant Pump A Control Module Overtemperature

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2D04 refers to the small electronics built into coolant pump A of the motor electronics loop: its own temperature has exceeded the limit, and the pump usually reports this before cutting back or switching off to protect itself. Heat builds up when the pump works hard against a restriction, runs dry, sits close to a hot component or has an internal electrical fault. Ford's 2019 hybrid summary still lumped such internal reports under P0C73 (confirmed pump fault for more than 1.25 s); Ford's 2020 hybrid campaigns for the Escape (20-2221) and for Explorer, Aviator and the police utility (20-2293, later 20-2345) name P2D04 separately and fix it with a software update once the coolant level is right. Ford's 2024 summary calls the type 98, system overtemperature. If the pump shuts down, the inverter may overheat and power drops.

Likely causes

Pump running dry or with too little coolant, so it loses its own cooling
Blocked or kinked line forcing the pump to work at high load
Internal fault in the pump control electronics
Software strategy on 2020 Ford hybrids, cured by reprogramming

Symptoms

  • Malfunction indicator lamp on, sometimes only after longer drives or in hot weather
  • Pump stops temporarily and restarts after cooling down
  • Inverter overtemperature warning or reduced power

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€60–900
Time0.4–3 h

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

Parts involved

motor electronics coolant pump apower electronics coolant loop

Related codes

P2D00P2D03P2D09P2D0EP0C73P0A3C

References: fordservicecontent.com, static.nhtsa.gov, static.nhtsa.gov, fordservicecontent.com.