2004 Pontiac Grand Am Repair Question
Asked on January 2, 2013
Pontiac Grand Am Fuse Problem
Does the PCM supply 12 volts to the fan relays? I don`t have voltage at the fan motors, at 220 degrees.
Asked by (pending member)Answer
Replied on January 2, 2013
The pcm controls ground for the relays, not voltage. Did you check for voltage at the relays? There are fan fuses in the under hood fuse block. Will the fans run if you turn on the ac? If you unplug the coolant temp sensor will the fans run? Any applicable trouble codes?
Replied on January 2, 2013
Just to add, low speed fans come on around 223 degrees F. The high speed around 230 degrees F.