2003 Jeep Liberty Radiator Fan Control Relay Circuit. There is an open or short on the control side of the radiator fan relay circuit. P1491 JEEP Description 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. Test the fan relay resistance it should be 30-70 ohms. - K173 radiator fan relay control circuit open - K173 radiator fan relay control circuit shorted to ground - PCM _____ If you notice in the possible causes you have already replaced the relay we know there is power to the relay we know the relay ground is present so now we need to determine if the control circuit is shorted to ground or.
This tutorial will help you to diagnose the Pulse Width Modulated PWM fan relay on the 1999-2003 Jeep 40L Grand Cherokee SUVs andor the codes P1491 Radiator Fan Control Relay CircuitThe dealer at the time of this writing will charge you 95 US to diagnose it. Where is Radiator fan relay on 2003 jeep liberty located - Answered by a verified Jeep Mechanic We use cookies to give you the best possible experience on our website. Uses a relay tester to test the fan control relay or switches the relay with a good relay to test. - K173 radiator fan relay control circuit open - K173 radiator fan relay control circuit shorted to ground - PCM _____ If you notice in the possible causes you have already replaced the relay we know there is power to the relay we know the relay ground is present so now we need to determine if the control circuit is shorted to ground or. Unplug the harness to the resistor and remove the resistor. 2003 Jeep Liberty heater fan problem It is the blower motor resistor.
P1491 - Radiator Fan Relay Control Circuit Tool Used.
Test the fan relay resistance it should be 30-70 ohms. Your Jeep Libertys radiator fan has one of the most important jobs on the vehicleIt is the last line of defense between you and an overheating engine. Radiator Fan Control Relay Circuit Possible Causes. Video on how to diagnose dtc p1491 radiator fan control relay circuit malfunction on a 2003 jeep liberty sport. Concept2005 Jeep Compass Concept2005 Jeep Cherokee UK Version2004 Jeep Wrangler Unlimited2004 Jeep Rescue Concept2003 Jeep Treo Concept2003 Jeep Grand Cherokee UK Version2003 Jeep Cherokee UK Version2003 Jeep Cherokee Renegade2002. Test the fan relay resistance it should be 30-70 ohms.