awesome, could be similar. after looking at the diagrams and reading that thread, it could be one of the coolant temp sensors or the high pressure ac sensor...i'll check them all. Since it's a Roadmaster I can check the coolant sensors in the HVAC display and they both read normally. The other weird thing is the secondary fan comes on sometimes after I've been driving the car hard and come to a stop...coolant temps are fairly rock solid this time of year, expecially with the ac off. so it makes sense that one of the sensors is indicating more resistance than what really exists.