One more Aux fan issue OM606
 

Aux fans do not come on.

I ran 12v to them and they both spin up nicely.

I shorted out the two leads that hook up to the pig tail sensor on the dryer but no luck. I can hear the relay behind the fuses clicking. Does that mean the relay is good and it is the sensor?

I replaced fuse #7 just to be on the safe side.

Is there a way to test the dryer sensor? I hooked it up to a meter but it does not show resistance. Thing is I hooked up my 190 which work fine and it had the same result so I guess that is normal. How about the relay? BTW, does anyone know which relay it is (picture would be nice).

We are taking a road trip in a week and I would like to get this resolved.

Thanks

Problem solved. I was told to look at the fuses on the relays them selves. Apparently there are two relays (high and low speed) behind the fuse panel. There is a green relay with a 30amp fuse and a blue relay with a 15amp fuse. The blue (15 amp) fuse was blown. I put a new one in and voila, the aux fans spool up and life is good once again in the Mash auto world.