When it comes to troubleshooting Chrysler vehicles, having the right information is essential. The Chrysler Code P0480 is an important code to know and understand, as it can help you identify and diagnose engine problems. The code is related to the cooling fan control circuit and the vehicle’s Totally Integrated Power Module (TIPM). The Powertrain Control Module (PCM) sends a CAN bus message to the TIPM, which then grounds the coil for the requested Cooling Fan Relay. The cooling fan relay then provides battery voltage to the Cooling Fan Motor. Depending on the requested fan speed from the PCM, the TIPM outputs a duty cycle signal to the Radiator Cooling Fan, allowing the fan to control the speed accordingly. When this system fails, it can cause a variety of issues that need to be addressed. To help, we have created a table outlining some of the common causes and solutions for Chrysler Code P0480.
Common Causes and Solutions for Chrysler Code P0480
| Causes | Solutions |
|---|---|
| CAN BUS Failure | Check for DTCs related to the CAN bus |
| ECT Sensor DTCs Set | Check and replace the ECT sensor if needed |
| Cooling Fan Control Circuit DTCs Set | Check the Cooling Fan Control Circuit for any open or short circuits |
| Powertrain Control Module (PCM) | Check the PCM for any DTCs related to the Cooling Fan Control Circuit |
CAN BUS Failure
When troubleshooting Chrysler Code P0480, the first step is to check for DTCs related to the CAN bus. If the CAN bus fails, the system will be unable to communicate with the TIPM, which in turn will not be able to control the Cooling Fan Relay. This can cause the system to fail and trigger the Chrysler Code P0480. It is important to have the CAN bus system checked and repaired before attempting to diagnose or repair the cooling fan control circuit.
ECT Sensor DTCs Set
Another common cause of the Chrysler Code P0480 is the Engine Coolant Temperature (ECT) sensor. If the ECT sensor has a DTC set, the Powertrain Control Module (PCM) will not be able to accurately control the cooling fan speed. The ECT sensor should be checked and replaced if needed.
Cooling Fan Control Circuit DTCs Set
If the ECT sensor is functioning properly, the next step is to check the Cooling Fan Control Circuit for any open or short circuits. If the circuit is open or shorted, it will prevent the PCM from controlling the fan speed and thus cause the Chrysler Code P0480.
Powertrain Control Module (PCM)
Finally, the Powertrain Control Module (PCM) should be checked for any DTCs related to the Cooling Fan Control Circuit. If the PCM is malfunctioning or has any DTCs set, it will not be able to accurately control the fan speed and will cause the Chrysler Code P0480.
Conclusion
Chrysler Code P0480 is an important code to be aware of when troubleshooting Chrysler vehicles. It is associated with the cooling fan control circuit and the vehicle’s Totally Integrated Power Module (TIPM). Common causes of this code include CAN bus failure, ECT sensor DTCs set, Cooling Fan Control Circuit DTCs set, and Powertrain Control Module (PCM) failure. Knowing how to diagnose and repair these issues can help identify and resolve engine problems quickly and efficiently. For best results, all components related to the Chrysler Code P0480 must be checked and repaired if needed.
https://www.youtube.com/watch?v=winfXPvjtgQ