OBD Guide

P26F5

Coolant Pump C Control Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Engine overheating (in some cases)
  • Reduced engine power
  • Activation of emergency operation
  • Unstable operation of the cooling system

Causes

  • Open or short circuit in the pump control circuit
  • Coolant pump motor malfunction
  • Problems with the pump circuit relay or fuse
  • Engine control unit malfunction
  • Poor contact in control circuit connectors

How to Fix

  1. Check fuses and relays associated with the coolant pump
  2. Check the integrity of the wiring and connectors in the control circuit
  3. Check the resistance and operation of the pump motor
  4. Check control signals from the engine control unit
  5. If necessary, replace the coolant pump or repair the wiring

Related codes

Error P26F5 by Vehicle Brand