error code P0480 cooling fan 1 control circuit/open (low speed fan relay) on 2003 Dodge Ram 2500

would this cause my truck to not start unless plugged in?

Asked by for the 2003 Dodge Ram 2500
they use 2 air heaters that they use for cold starts. one or both may be malfunctioning. you need a shop with a scan tool to test them and see if they have failed.

1 more answer
this obd2 trouble code table can help you understand the meaning of code.