Questions & Answers for: how to test radiator fan relay

...radiator fan control relay circuit for 1999 Grand Cherokke Laredo. This relay is a common problem for Chrysler vehicles. Located in the passenger side bumper area (Jeeps). Test the fan first. Hope ...

...radiator fan relays/condensor fan relay. they're located on drivers side,in small relay box attached to radiatortop support bracket.that relay is also common with several others on car so you could ...

...test power to IGN) Radiator fan control relay is damaged or has failed PCM has failed p1491 rad fan control circuit This will make the car overheat if run in hot weather too long and the fan doesn't ...

...radiator fan motor is bad, and the fan needs replacement. You can test to make sure it is the fan motor by unplugging the wiring harness to your fan, then test it with a 12v battery via the postive ...

...test code P1491 means? Hello jhonney21, The P1491 is Radiator fan control relay circuit code. It is set if an open or short circuit is detected in the radiator fan relay control circuit. Regards, ...

...TEST A RADIATOR AND CAPhttp://schematicsdiagram.blogspot.com/2011/07/how-to-pressure-test-radiator-and-cap.html----------------HOW TO REPLACE A ...

...radiator fan switch, to test turn on AC and see if fan comes on, if not locate the relays for the fan and jump them out if fan comes on replace the relay (some models will have multiple relays for ...

...Radiator fan does not come on and engine gets hot. Tested fan motor it works. Also how do I ohm the fan relay to test remove the relay and test it across the battery ,the two big connectoprs are the ...

...radiator fans work Using a test light connect the lid to NEGATIVE and start the engine with A/C on.back probe the positive terminal on the fan.If no power test the fuse. if fuse OK switch the relay ...

...radiator fan merc.2002 villager Sensors for radiator Fan ? What sensor ? The coolant temperature sensor is an input to the PCM - engine computer ! When the engine temperature reaches 200 degree's the ...