P26F4

Coolant Pump C Control Circuit/Open

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–111 (est.)

Symptoms

Engine overheating
Unstable engine operation
Check engine light comes on
Reduced cooling efficiency
Increased fuel consumption

Causes

Pump control circuit open
Coolant pump malfunction
Pump relay problems
Wiring harness damage
Engine control unit malfunction

How to Fix

Check the integrity of the pump control circuit
Diagnose the coolant pump
Check pump relay
Inspect the wiring harness for damage
If necessary, replace the pump or relay

Related codes

P26F3 P26F5 P26F6