Wednesday, February 15, 2023

P0480 Cooling Fan 1 Control Circuit Malfunction

P0480 is a diagnostic trouble code (DTC) related to the cooling fan 1 control circuit malfunction. It means that the powertrain control module (PCM) has detected an abnormality in the electrical circuit that controls the cooling fan 1.

The cooling fan is responsible for maintaining a safe operating temperature for the engine by drawing air through the radiator. When the PCM detects an abnormality in the circuit that controls the cooling fan 1, it will trigger the P0480 code and turn on the check engine light.

To fix this issue, you can start by checking the fuses related to the cooling fan 1 control circuit. If the fuses are good, you can move on to checking the wiring and connections. Look for any broken, damaged, or corroded wires, and ensure that all the connections are clean and tight.

If the wiring and connections are good, you can test the cooling fan 1 relay to ensure that it is functioning properly. If the relay is working correctly, you may need to replace the cooling fan motor itself.

It's always recommended to refer to the vehicle's service manual or seek assistance from a certified mechanic to perform a proper diagnosis and repair of the issue.


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