I just became a member and need some help please. My ‘97 SSE air distribution box control door will not switch from hot air mode to cold air mode. I think it may be the motor that moves the door inside the box but may be switches.
I need some suggestions on how to narrow it down.
If it is the motor how do I get to it? I took the glove box out but still couldn’t see anything.
All suggestions will be greatly appreciated.

Thanks,
Russell

Sounds like it'* having a problem with the air mix valve in the programmer.
Here'* the diagrams for vacuum,electrical and the programmer.

BTE You get to it by taking the PCM loose from it'* bracket. Don't disconnect it. Go up behind the bracket.

Thanks for the info and diagrams. Looks like I will need to do a little studying.

Thanks a lot carfixer007

Do you have a scan tool? I'll look and see if that module can be scanned? Being that new of an OBDII vehicle I think not but I'll check.

No. I have no contacts with someone who does aside from the garage I use.

Thought I would post an update. The problem turned out to be caused by a leaking vacuum line which feeds the programmer.

Thanks to all,
Russell

Thanks for Letting us know! Great that you found the vacuum leak!
Good work!

Thanks for letting us know how it turned out!