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 car's computer has detected a problem with the motor that helps the clutch work properly. It's like if a toy car's motor isn't strong enough to make it move.
The vehicle's control module monitors the performance of the clutch A pump motor. If it detects that the motor is not functioning within the expected parameters, it triggers the P28C8 code.
The P28C8 code is set when the transmission control module (TCM) detects that the clutch A pump motor is not performing as expected. This could be due to electrical issues, mechanical failure, or other related problems affecting the pump's operation.
• Transmission slipping
• Difficulty in shifting gears
• Illuminated check engine light
• Faulty clutch A pump motor
• Electrical issues such as a short or open circuit
• Mechanical failure within the clutch system
Clutch: A device that engages and disengages the power transmission, especially from a drive shaft to a driven shaft.
Pump Motor: A motor that drives a pump to circulate fluid within a system.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors related to the clutch A pump motor.
• Test the clutch A pump motor for proper operation.
• Replace the faulty clutch A pump motor.
• Repair or replace damaged wiring or connectors.
• Perform a transmission system reset or reprogramming if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$300 - $800
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regular maintenance of the transmission system
• Check and replace transmission fluid as needed
• Inspect electrical connections regularly
Transmission Performance
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult with a professional mechanic for accurate diagnosis.
Check with the vehicle manufacturer for specific warranty coverage related to transmission components.
This code has been associated with vehicles experiencing clutch system issues, particularly in models with automated manual transmissions.
High – Addressing this issue promptly can prevent further transmission damage.
Driving with a faulty clutch pump motor can lead to transmission failure, which may result in unsafe driving conditions.
• Vehicle must be in a safe environment.
• Ensure the transmission is properly engaged.
The clutch A pump motor is typically located within or near the transmission assembly.
Q: Can I drive with a P28C8 code?
A: It's not recommended to drive with this code as it can lead to further transmission damage.
Q: How do I reset the P28C8 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, the code will reappear.
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