Question about 2002 Dodge Ram Maxi
Yezerr it is Typical I Would Advise you to Replace the Relay control As The Cooling fan (Even in Winter cold) is needed for Defrost as the Ac Compresor engages for defrost anf thus Whenever Compresor engages the cooling fan Must come on due to the load it puts on Engine, Kinda one of those Fix it Before it Hurts Another Component. If You Need troubleshooting for this FEEL Free to Let me Know.
Posted on Jan 14, 2009
That is a Very Common Problem and is not Difficult or Expensive to Repair.
Posted on Jan 14, 2009
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Posted on Jan 02, 2017
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Trouble Code: P1491 You PCM does not sense current to radiator fan when it turns it on. Is the fan coming on or not? Usually not when you have this code. Problem can be with the fuse, relay, wiring or fan itself. First check the fuse. If good, next try swapping the relay with another one in the engine compartment relay box, such as the horn relay.
Let the car warm up and see if the fan will come on. If yes, get a new relay. If not, either use a test light to see if there is voltage at the fan connector when the engine is on and hot, or else test the fan motor by hotwiring it to the battery. If none of this works, please get back to me for how to troubleshoot the wiring.
Radiator Fan Control Relay Circuit Malfunction
Radiator fan control relay circuit is open or shorted to ground Radiator fan control relay circuit is open (test power to IGN) Radiator fan control relay is damaged or has failed PCM has failed
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