P2DFA

Coolant Pump E Supply Voltage Circuit

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–167 (est.)

Symptoms

Engine overheating
Unstable operation of the cooling system
Check Engine Light Is On
Reduced cooling efficiency

Causes

Open or short circuit in the pump power supply circuit
Coolant pump relay malfunction
Poor contact in connectors
Electrical coolant pump malfunction
Problems with the engine control unit

How to Fix

Check the integrity of the pump power supply circuit
Inspect connectors and contacts for oxidation or damage
Check the operation of the coolant pump relay
Test the electric coolant pump
If necessary, replace the pump or relay

Related codes

P2DFB P2DF9 P2DF8