P261A

Coolant Pump B Control Circuit/Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Check Engine light comes on
Possible problems with cooling the turbine or intercooler
Reduced engine performance
Overheating of certain engine components
Noise or lack of operation of the additional coolant pump

Causes

Open or short circuit in the pump control circuit
Coolant pump relay malfunction
Damage or wear to the pump itself
Problems with connectors or wiring harness
Engine control unit malfunction

How to Fix

Check the integrity of the wiring and connectors in the control circuit
Check the functionality of the pump relay
Test the resistance and power supply of the pump
If necessary, replace the coolant pump
Check and, if necessary, update the ECU software

Related codes

P261B P261C P261D