97 climate control part replacement, cannot change P1 and P2
 

Got another display unit. Original part number is 2108302385. I replaced with 2108300585. The recirc red light came on which tells me I need to modify the P1 and P2 values.

Here is the problem. The procedure, left Hi, righ Lo then rest/ignition is not working. I cannot get the p1 and p2 to show up.

What can I do? bring it to an indy to adjust it with SDS? or is it a part that cannot work?

IF that controller is GOOD, the values can be adjusted with SDS

Thanks! I ended up returning it to get a later model part. we'll see...