What does code P2DFA mean?

Q: What does code P2DFA mean?

Coolant Pump E Supply Voltage Circuit. P2DFA indicates that the engine control module (ECM) has detected an abnormal supply voltage condition on the electrical circuit feeding the coolant pump, designated as 'E' in the manufacturer's naming scheme. The ECM monitors the voltage on the pump's power supply line and sets this code when the voltage falls outside the expected range, typically indicating an open circuit, short to ground, or high resistance in the wiring or connector.

DTC codes / P2Dxx · Hybrid propulsion / P2DFA

P2DFACoolant Pump E Supply Voltage Circuit

P2DFA indicates that the engine control module (ECM) has detected an abnormal supply voltage condition on the electrical circuit feeding the coolant pump, designated as 'E' in the manufacturer's naming scheme. The ECM monitors the voltage on the pump's power supply line and sets this code when the voltage falls outside the expected range, typically indicating an open circuit, short to ground, or high resistance in the wiring or connector.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

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.