Why does 1997 Chrysler cooling fan run constantly?
ummm from what you describe it seems to me whoever had the car
before you rerouted the fan to a all power line meaning they
rewired it to a positive wire so fan comes on constant it may be
going right to batt or fuse box
Check the coolant temperature sending unit and replace it if you
need to if the fans have not been rewired. By default, one fan runs
pretty much all the time, with the second fan kicking in when it
detects a rise in temperature (due to the coolant temperature
sending unit) or when the A/C is switched on. If it is not the
sending unit, it could be in the wiring for the A/C.