What causes an error code on a fan relay?
What causes an error code on a fan relay?
There are multiple factors that can lead to this error code. Some of the most common possible causes are: Defective faulty fan control relay 1. Faulty cooling fan 1. Open or shorted fan control relay harness. Open or shorted fan cooling fan harness. Poor electrical connections in the cooling fan circuit. Defective coolant temperature sensor.
What is the trouble code for cooling fan 3?
Some vehicles have two or three cooling fans, and in this case, the involved control circuit is that which operates fan #3. This code indicates that the PCM (powertrain control module) has detected voltage in the cooling fan control circuit outside of the normal parameters.
How do you test a fan control relay?
Then, they use the scan tool to check the datastream and confirm the VSS sensor has proper readings, and if the coolant temperature sensor is reading accurately. Then they test the fan control relay using a relay tested, or switch the relay using a good relay to test.
What is the p0482 code for cooling fan 3?
The P0482 code is indicative of cooling fan 3 control circuit malfunction. Concurrent codes may be present, such as P0480, P0481, P0482, P1474, P1477 and/or P1479. If such codes are stored along with P0482, each one should be addressed in the order the event occurred.
There are multiple factors that can lead to this error code. Some of the most common possible causes are: Defective faulty fan control relay 1. Faulty cooling fan 1. Open or shorted fan control relay harness. Open or shorted fan cooling fan harness. Poor electrical connections in the cooling fan circuit. Defective coolant temperature sensor.
Then, they use the scan tool to check the datastream and confirm the VSS sensor has proper readings, and if the coolant temperature sensor is reading accurately. Then they test the fan control relay using a relay tested, or switch the relay using a good relay to test.
How does the p0480 cooling fan relay work?
The PCM (powertrain control module) senses the increase in engine temperature through the CTS (coolant temperature sensor) located near the thermostat. When the temperature reaches about 223-degrees F (value depends on make/model/engine), the PCM will command the cooling fan relay to turn on the fan.
How many fan relays do you need for a car?
The fan that is not in front of the air conditioning condenser is the main cooling fan and the one to concentrate on initially. Additionally, many vehicles have multi-speed fans requiring as many as three fan speed relays for low, medium and high. Open the hood and do a visual inspection.
