OBD Guide

P26CF

Engine Coolant Pump Control Module System Voltage

P26CF is an OBD-II diagnostic trouble code meaning: Engine Coolant Pump Control Module System Voltage. Common causes: coolant pump control module malfunction, open or short circuit in the electrical circuit. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Engine overheating
  • Insufficient engine warm-up in cold weather
  • Check Engine Light Is On
  • Unstable engine operation
  • Reduced cooling system efficiency

Causes

  • Coolant pump control module malfunction
  • Open or short circuit in the electrical circuit
  • Module power problems
  • Faulty relay or fuse
  • Poor contact in connectors

How to Fix

  1. Check fuses and relays associated with the system
  2. Inspect the electrical circuit for damage
  3. Check voltage at pump control module
  4. Test the operation of the coolant pump
  5. If necessary, replace the pump control module

Related codes

Error P26CF by Vehicle Brand

FAQ

What does the P26CF code mean?

P26CF is an OBD-II diagnostic trouble code that indicates: Engine Coolant Pump Control Module System Voltage

What causes a P26CF error code?

The most common causes of P26CF include: Coolant pump control module malfunction; Open or short circuit in the electrical circuit; Module power problems; Faulty relay or fuse.

How do I fix a P26CF diagnostic trouble code?

To fix P26CF: Check fuses and relays associated with the system. Inspect the electrical circuit for damage. Check voltage at pump control module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P26CF?

Limited driving only, diagnose soon

How much does it cost to fix P26CF?

The estimated repair cost for P26CF is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat