P028A
Charge Air Cooler Cooling Fan Control Circuit/Open
Generic OBD-II
Common symptoms
What you'll notice
- Check and replace any damaged or disconnected wires or connectors related to the charge air cooler cooling fan circuit.
- Inspect and replace the charge air cooler cooling fan relay if it is found to be faulty.
- Check and replace the charge air cooler cooling fan motor if it is not functioning properly.
- Verify and repair any issues with the engine control module (ECM) related to the charge air cooler cooling fan control circuit.
Common causes
Most likely first
- Malfunctioning charge air cooler cooling fan
- Faulty wiring or connections in the charge air cooler cooling fan circuit
- Defective charge air cooler cooling fan control module
- Blown fuse related to the charge air cooler cooling fan control
- Issues with the vehicle's engine control unit (ECU) related to the charge air cooler cooling fan control
How to diagnose & fix
Work through it in order
- Overheating of the engine
- Reduced engine performance or power
- Malfunctioning or non
- operational charge air cooler cooling fan
- Engine stalling or rough idling
- Increased fuel consumption or poor fuel efficiency
Read & clear P028A yourself
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