P028A
Charge Air Cooler Cooling Fan Control Circuit/Open
P028A is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Cooling Fan Control Circuit/Open. Common causes: open/short circuit in wiring harness, control relay fault. Estimated repair cost: $33–167.
Symptoms
- Reduced engine power
- Deterioration in response to the gas pedal
- Possible engine overheating
- Increased fuel consumption
- Detonation knocks
Causes
- Open/short circuit in wiring harness
- Control relay fault
- Fan motor failure
- Problems with the engine control unit
- Corrosion of contacts or connectors
How to Fix
- Visual inspection of the wiring harness and contacts
- Checking the operation of the fan and fuses
- Diagnostics of resistance of electric motor windings
- Testing signals from the control unit
- Replacing damaged components
- Reset error and test drive
Related codes
Error P028A by Vehicle Brand
FAQ
What does the P028A code mean?
P028A is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Cooling Fan Control Circuit/Open
What causes a P028A error code?
The most common causes of P028A include: Open/short circuit in wiring harness; Control relay fault; Fan motor failure; Problems with the engine control unit.
How do I fix a P028A diagnostic trouble code?
To fix P028A: Visual inspection of the wiring harness and contacts. Checking the operation of the fan and fuses. Diagnostics of resistance of electric motor windings. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P028A?
Limited driving only, diagnose soon
How much does it cost to fix P028A?
The estimated repair cost for P028A is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat