Radiator Fan Control Relay Circuit

This is a generic powertrain diagnostic trouble code dtc which means it covers all makes models 1996 newer.

Radiator fan control relay circuit.

We opted to tap into our. If our video s have helped you repair your. Refer to code repair chart in other manuals or media. However specific troubleshooting steps will vary depending on the vehicle.

If the temperature reaches more than 223 f value depends on make model or engine of the vehicle the pcm automatically command the cooling fan relay to turn on its fan by supplying the ground to the relay. In the painless performance electric fan relay kit we got from speedway motors a circuit breaker is supplied if you wanted to safely get power directly from the battery. Cooling fan relay 1 control circuit. So be sure to test the relay as well as its power supply and ground connections.

The relay is the component that fails most often. Test the fan relay resistance it should be 30 70 ohms. With the key on or engine running system voltage over 10v fan relay commanded on the powertrain control module detects a shorted or open condition in the relay control circuit. Video on how to diagnose dtc p1491 radiator fan control relay circuit malfunction on a 2003 jeep liberty sport.

Problems in the cooling fan circuit.