P2D03

Motor Electronics Coolant Pump A Supply Voltage Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Engine overheating
Reduced engine power
Check Engine Light Is On
Unstable engine operation
Cooling pump noise

Causes

Open or short circuit in the pump power supply circuit
Cooling pump malfunction
Relay or fuse problems
Wiring harness damage
Engine control unit malfunction

How to Fix

Check coolant pump fuses and relays
Diagnose the pump power circuit for opens and short circuits
Check the functionality of the cooling pump
Inspect the wiring harness for damage
If necessary, replace the cooling pump

Related codes

P2D04 P2D02 P2610