I have a 2000 grandam that the cooling fans will not work on. I tested both motors and they run when wired up direct. I tested the relays for fan 1 and fan 2 and the cooling fan control relay they all appear to be good. The manual i have doesn't show a temp switch or anything that should input to the powertrain conrol module and ideas?
Feb 18, 2010 at 12:24 PM