P0482 Fault Code

Cooling Fan 3 Control Circuit Malfunction

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0482 fault code indicates a malfunction in the cooling fan 3 control circuit. This code typically appears in vehicles equipped with multiple cooling fans, particularly in systems designed to manage engine temperature effectively. A problem in this circuit can lead to overheating or insufficient cooling, which can negatively impact engine performance and reliability.

What are the symptoms of the P0482 code?

• Engine overheating
• Engagement of the cooling fans erratically or not at all
• Poor fuel economy due to engine running hot
• Increase in coolant temperature gauge readings
• Possible triggering of the vehicle's check engine light

What causes the P0482 code?

• Faulty cooling fan relay
• Open or shorted wiring in the cooling fan circuit
• Defective cooling fan motor
• Malfunctioning engine control module (ECM)
• Issues with connectors causing poor electrical connection

How to fix P0482?

• Inspect and test the cooling fan relay for proper operation.
• Check wiring and connectors for signs of damage or corrosion.
• Replace the defective cooling fan motor if necessary.
• Ensure the ECM is functioning correctly and reprogram if required.
• Clear the fault code and test drive the vehicle to monitor the cooling fan operation.