Hi all! I have a 2001 Ram 1500 Quad Cab 2wd with the 5.2L V8.

The other morning the A/C & heater vents stopped working on any setting other than the highest. The A/C still cools and the heater heats, and all of the functions (dash, floor, defrost, etc...) still work. But the fan speed only works on high; the three lowest settings give me nothing.

What do you think? Is this probably a dead switch and I need to replace the little panel that has all three dials? Is there some other problem that may be causing this? Is there a way to diagnose the switch to know for sure before I drop $160 on a new switch panel?

 

It doesn't sound like the switch to me. It sounds more like the fan motor resistor

 

+1 ive had the same proble in 2 previous vehicles...one was a pontiac sunfire, one was an olds cutlass. both turned out t be the resistor.

 

switch is an easier fix though lol

 

just cause it is an easier fix, doesnt mean tis the part thats bad

 

I know, just sayin hes gonna be wishin it was the switch.

 

true... but still... i would change it sense im already workin on it... but yea, sounds like the resistor

 

Care to explain why?

Edit, only reason I ask is... anything to do with the dash I don't consider easier than anything haha. I cracked the bezel last time I removed it, and then more cracks showed up too. At least in my case I would be happy that it was the resistor lol. Either way, here you go OP.. it is only a few steps.

 

Thanks pcfixerpro! This was very helpful. It looks like a farily easy fix and the resistor is only a $50 part versus $160 for the switch panel.

 

i'm going to have to do the same thing.. mine went yesterday while on the way to pick up other parts