HVAC panel went belly up...new one has problems

[itsnotanova]

When someone ask to buy one from me, I ask them if they have the two or four plug HVAC controller. I'm not sure after the year 2000 what dictates a car getting the two or the four plug controller. I'm pretty sure they're not interchangeable though. I tried doing what you did, and I had the same results.

[itsnotanova]

Both kinds have the connections for four but some cars only use two of them. You might be able to use the face plate on the good one and use it on the bad one? Take one apart and you'll see what I'm talking about.