P2BD4

Motor Electronics Coolant Pump C Control Circuit/Open

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Engine overheating
Turning on the Check Engine Light
Reduced engine power
Unstable operation of the cooling system
Coolant pump noise

Causes

Broken wires in the pump control circuit
Electronic coolant pump malfunction
Relay or fuse problems
Short circuit in wiring harness
Engine control unit malfunction

How to Fix

Check the integrity of the wires and connectors in the pump circuit
Check fuses and relays associated with the pump
Test coolant pump resistance
Check the operation of the pump with the ignition on
Scan the control unit for additional errors

Related codes

P2BD5 P2BD3 P2610