P028C

Charge Air Cooler Cooling Fan Stuck On

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

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
Update engine control unit software

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