P2E44

Hybrid/EV Electronics Coolant Pump B Control Circuit High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Overheating of electronic components
The car goes into emergency mode
Noise or lack of operation of the cooling pump

Causes

Broken or damaged control circuit wiring
Cooling pump motor malfunction
Pump control relay problems
Corrosion or poor contact in connectors
Malfunction of the hybrid system control unit

How to Fix

Check the integrity of the wiring and connectors of the pump circuit
Test the resistance of the pump motor windings
Check the operation of the control relay
Replace the cooling pump if necessary
Reset the error code and test drive

Related codes

P2E43 P2E45 PP0A00