How do you fix trouble code P0480?
How do you fix trouble code P0480?
How To Correct P0480 Cooling Fan Relay 1 Control Circuit
- Repair or replace the faulty cooling fan 1.
- Replace the frayed vehicle speed sensor.
- Replace the inoperative AC pressure switch.
- Repair the faulty electrical connections.
- Repair or replace the defective fan wiring harness.
- Replace the engine coolant temperature sensor.
What can cause a P0480 code?
What are the Possible Causes of the P0480 Code?
- Faulty cooling fan relay.
- Faulty cooling fan.
- Fan circuit issues, such as damaged wires or poor connections.
- Faulty coolant temp sensor, wiring, or connections.
- Issues with the PCM, such as software in need of an update.
What is a fan 2 control circuit?
Diagnostic trouble code (DTC) P0481 stands for “ Fan 2 Control Circuit.” Cooling fan relays control the power supplied to your engine’s cooling fans. If the engine temperature reaches a point that’s considered unsafe, the PCM will command one of the cooling fan relays to activate one of the fans.
How do I fix the cooling fan 2 control circuit malfunction?
The most common potential repairs to address the P0481 code are as follows: Inspect the electrical connections to the cooling fan and relay to insure they are attached. Disconnect it, inspect the connections for corrosion or other issues, and then reinstall to insure a fresh electrical connection.
What sensor turns on the radiator fan?
coolant temperature sensor
On most modern cars, the cooling fan is controlled by the Engine Control Unit (ECU) which gets a signal from the coolant temperature sensor.
How do I know if my fan relay is blown?
Keep a lookout for the following bad cooling fan relay symptoms:
- The engine runs hot or overheats.
- The cooling fans don’t work.
- The cooling fans keep running.
- Warning lights.
- Poor air conditioning performance.
- Swapping Relays.
- Measuring the Relay Coil’s Resistance.
- Listening for Noises.