OBD Guide

P26F9

Coolant Pump C Control Module Overtemperature

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Engine overheating
  • Unstable operation of the cooling system
  • Temperature warning light comes on
  • Reduced engine performance
  • Noises from the coolant pump

Causes

  • Pump control module malfunction
  • Problems with wiring or contacts
  • Cooling system overload
  • Pump dirty or damaged
  • Insufficient cooling of the control module

How to Fix

  1. Check the status of the pump control module
  2. Inspect electrical wiring and contacts for damage
  3. Check the operation of the coolant pump
  4. Ensure sufficient cooling of the control module
  5. Replace the control module if necessary

Related codes

Error P26F9 by Vehicle Brand