OBD Guide

P028F

Charge Air Cooler Cooling Fan Control Circuit Driver Performance

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

Symptoms

  • Reduced engine power
  • Intercooler overheating
  • Increased fuel consumption

Causes

  • Open or short circuit in wiring harness
  • Fan relay fault
  • Fan motor damage
  • Problems with the ECU

How to Fix

  1. Check the integrity of the wiring harness
  2. Test the fan relay
  3. Check the operation of the fan motor
  4. Diagnose the ECU for errors

Related codes

Error P028F by Vehicle Brand