OBD Guide

P028C

Charge Air Cooler Cooling Fan Stuck On

P028C is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Cooling Fan Stuck On. Common causes: fan solenoid relay malfunction, short circuit in fan control circuit. Estimated repair cost: $56–167.

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

Symptoms

  • Constant noise of a running fan
  • Increased fuel consumption
  • Reduced DER intercooler efficiency

Causes

  • Fan solenoid relay malfunction
  • Short circuit in fan control circuit
  • Mechanical jamming of the fan
  • Engine control unit software error

How to Fix

  1. Check the condition and operation of the fan
  2. Diagnose the fan control circuit for a short or open circuit.
  3. Replace the faulty relay or the fan itself if necessary
  4. Update engine control unit software

Related codes

Error P028C by Vehicle Brand

FAQ

What does the P028C code mean?

P028C is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Cooling Fan Stuck On

What causes a P028C error code?

The most common causes of P028C include: Fan solenoid relay malfunction; Short circuit in fan control circuit; Mechanical jamming of the fan; Engine control unit software error.

How do I fix a P028C diagnostic trouble code?

To fix P028C: Check the condition and operation of the fan. Diagnose the fan control circuit for a short or open circuit.. Replace the faulty relay or the fan itself if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P028C?

Limited driving only, diagnose soon

How much does it cost to fix P028C?

The estimated repair cost for P028C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat