What does code P2D04 mean?

DTC codes / P2Dxx · Hybrid propulsion / P2D04

P2D04Motor Electronics Coolant Pump A Control Module Overtemperature

P2D04 indicates that the control module for the motor electronics coolant pump A has detected an internal overtemperature condition, meaning the electronics driving the pump are running hotter than the design limit. The module monitors its own temperature and sets this code when the threshold is exceeded, often due to excessive current draw, poor cooling, or an internal fault.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.