I have a problem that I cannot find any info on in the service manual
for this van. The HVAC controls no longer light up with the headlights
turned on. I thought I had a burned out light, but when I changed out
the stereo, I also pulled out the HVAC control head, and there is no
light. How did it light up? Is there a diode associated with the PC
board that went out? I couldn't see anything that looked like it would
light up on either of the PC boards. Is the only fix for this is to
replace the HVAC head? This is really annoying when driving at night.
In order to change a setting, I have to turn on the map lights, then
attempt to read what I want to change it to.
BTW - I just bought this van a few months ago, and the buttons aren't
even close to the other GM vehicles that I have (1996 Sub, 1994 Buick PA).
Any help would be greatly appreciated. If someone could point me to the
section and/or page in the service manual that deals with this, I would
be very appreciative.