Powertrain, generic (extended)

P2C68 Hybrid/EV Electronics Coolant Pump A Stuck/Stalled

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2C68 means the electronics coolant pump A has power and a command, yet its rotor does not turn or stops. Brushless pumps notice this themselves from a failed start attempt or high current with no rotation and report it to the controller. No manufacturer publicly documents P2C68. Ford's 2024 summary shows the matching fault type 71, actuator stuck, for engine coolant pump A (P2B9C), and a GM patent detects electric coolant pump faults by comparing measured with expected current. Seized bearings, sludge or debris, frozen coolant and burnt windings are the usual causes. Without flow, inverter and charger heat up quickly, so the vehicle limits power or stops charging. Audi's e-tron bulletin shows pump circuit faults (P0CE9) together with low coolant warnings.

Likely causes

Seized bearing or impeller in pump A
Foreign matter or sludge blocking the impeller
Burnt winding or failed pump electronics
Coolant frozen due to weak antifreeze

Symptoms

  • Drive system warning, check engine light
  • Strongly reduced power or charging interrupted
  • No pump noise when the pump is activated with a scan tool

Repair estimate

DifficultyHardWorkshop job
Parts and labour€150–1,000
Time1–4 h

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

Parts involved

hybrid electronics coolant pump apower electronics coolant loop

Related codes

P2C66P2C67P0CE9P0CEAP2E49U063D

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