Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the computer in your car has detected a problem with the fan that cools the air going into the engine. It's like when a fan in your room isn't working properly and the room gets too hot.
The engine control module (ECM) has detected a high voltage condition in the circuit that controls the cooling fan for the charge air cooler.
The P028E code is triggered when the ECM detects that the voltage in the charge air cooler cooling fan control circuit is higher than expected. This could be due to a short circuit, a faulty fan, or a problem with the control module.
• Check Engine Light is on
• Overheating of the charge air cooler
• Reduced engine performance
• Faulty charge air cooler cooling fan
• Short circuit in the cooling fan wiring
• Malfunctioning ECM or control module
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the cooling fan and its wiring for damage.
• Test the voltage and resistance in the fan circuit.
• Replace the faulty cooling fan.
• Repair or replace damaged wiring.
• Replace the ECM or control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Ram 1500
• Regularly inspect cooling fan and wiring.
• Ensure proper maintenance of the charge air cooler.
• Avoid overloading the vehicle.
Electrical Circuit Issue
• Do not ignore the Check Engine Light.
• Get the vehicle inspected by a professional.
• Avoid driving in extreme heat until repaired.
Check with the vehicle manufacturer for warranty coverage on the ECM and cooling fan components.
This code has been associated with vehicles that have high mileage or have been used in extreme conditions.
Moderate – It can lead to engine performance issues if not addressed.
Ignoring this code may lead to further engine damage and reduced performance, which can be unsafe.
• Engine at operating temperature
• Vehicle in a controlled environment
The charge air cooler cooling fan is typically located near the front of the vehicle, close to the radiator.
Q: Can I drive with a P028E code?
A: It's not recommended, as it can lead to engine overheating and reduced performance.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes.
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