U0624

Lost Communication With Coolant Pump B

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Possible overheating of individual engine components
Reduced cooling system efficiency
Errors in the operation of the climate control (if the pump is connected to the heater)

Causes

Open or short circuit in the pump circuit
Pump motor malfunction
Connector problems or contact corrosion
Faulty relay or fuse
ECU software error

How to Fix

Check the pump fuse and relay
Inspect connectors and wiring harness for damage
Check the power supply and ground of the pump
Test the resistance of the pump motor windings
If necessary, replace coolant pump B

Related codes

U0623 U0625 P2610