What is P0480 fault code? What is the description of the Cooling Fan 1 Control Circuit failure? How can I fix the P0480 fault? What are the causes and symptoms for the P0480 fault code
What is the P0480 fault code?
When the Engine Control Module (ECM/PCM/ECU) detects an issue with the engine’s electric cool fan (fan 1), or control circuit, a code P0480 will be set.
Your vehicle’s computer controls the fan and various sensors. The PCM monitors the coolant temperature sensor to determine the temperature increase. The cooling fan relay is used to start the fan when the engine temperature exceeds a set value. If the PCM does not receive the correct voltage signal from its cooling fan control circuit, it will produce a code P0480.
If you ignore this fault code, the engine may overheat and cause further damage. It is important to stop driving if you see this code.
What Causes the P0480 Fault Code
- – Defective fan control relay 1
- – Fan circuit problems, such as poor connections or damaged wiring
- – Defective cooling fan 1
- – Sensor for defective intake air temperature (IAT).
- – Selector switch for defective A/C
- – Defective A/C refrigerant pressure sensor
- – Defective vehicle speed sensor (VSS)
What are the symptoms for P0480 fault code?
- – Illumination at the check engine lights
- – Engine overheating or overheating
How do I fix the P0480 fault code?
Visual inspection of the fan system is recommended. You should inspect the fan system for any damaged or corroded cables. It is important to check if there is anything blocking the airflow in front the radiator.
Turn the fan by moving your finger with the engine off. If the fan stops spinning, it’s likely that it is defective. Verify the electrical connection. Look for bent pins or corrosion in the connector. If necessary, repair the connector and apply dielectric grease to the terminals.
Open the fusebox and inspect the fuses for the cooling fan relay. Examine the fan relay and the wiring harness that connects to the fuse box and fan.
If these steps fail to resolve the issue, you should test the VSS sensor as well as the engine coolant sensor for accurate readings.
- – Replacing fan control relay
- – Repair or replacement fan wiring harness
- – Replace the cooling fan
- Troubleshooting electrical connections
- – Replacing an A/C pressure switch
- – Replacing the VSS sensor that is defective
- – Replacing a defective engine coolant temperature sensor
What is the significance of P0480’s Fault Code?
An engine overheating code of P0480 could be caused by this code. This can lead to damage to engine parts, the cylinder head gasket, and other engine components. The vehicle should be stopped if it is showing the P0480 code or the fans are not functioning.
