1988 HVAC wiring schematic

[sbnova]

I searched but did not find one....

Does anyone have a schematic for the HVAC system on a 1988 c1500?

I removed my whole dash to change the AC evaporator, put it all back together and my blend doors are not working. The fan blows and changes speeds but I am stuck on dash vents (no floor, no defrost) and it will go more towards heat but not full cold air at the vents despite the AC return line being frigid and producing plenty of condensation.

It all worked perfectly before I took it apart. Please help

 

[PlayingWithTBI]

Here's some, you want the electrical diagnostics manual and look at section 62.0

https://www.gmt400.com/threads/88-95-service-manuals.43575/