P261C

Coolant Pump B Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine Light Is On
Engine overheating in certain modes
Reduced engine performance
Unstable operation of the cooling system
Activating engine emergency mode

Causes

Open or short circuit in the pump control circuit
Pump solenoid valve malfunction
Coolant pump relay problems
Engine control unit malfunction
Corrosion or poor contact in connectors

How to Fix

Check the integrity of the wiring harness to the pump
Check the resistance of the pump winding
Check the functionality of the pump relay
Inspect connectors for corrosion
Check the output signals of the control unit

Related codes

P261B P261D P261E