P0484 Code - Cooling Fan Circuit Over Current

What Does P0484 Mean?

There are several components that send data to the ECM, allowing it to properly operate the electric cooling fan. This part ensures that the engine temperature does not get too high. If any of the components send data that is more than 10% higher or lower than the manufacturer’s specifications for the current driving conditions, the PCM will store the P0484 code to indicate that there is a malfunction within this circuit.

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What are the common causes of P0484 ?

• Faulty IMRC actuator relay (if equipped)
• A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
• Faulty IMRC actuator/sensor

How do you troubleshoot P0484 ?

The engine system, in conjuction with the engine control module (ECM)/powertrain control module (PCM), activates the P0484 code solenoid valve to control oil pressure to the engine mechanism that is installed in the valve system to switch valve timing between Low and High.If the engine solenoid valve has an open or short circuit, a DTC is stored.

Searches related to P0484 Code - Cooling Fan Circuit Over Current

• P0484
• P0486