Gentex Mirror Wiring Diagram

From what I have learned about Gentex Mirrors the Mirrors that have Temperature display have the following buttons on the front : "Compass" and "Temperature" or (Comp and Temp). Also the compass and temperature displays show together (compass on top and temperature on bottom)

The mirrors that have Compass only have these buttons "Compass" and "Mirror" or (Comp and mirror). The mirror I bought out of a wrecked 99 Suburban  (old body style) has compass only. It takes up the full display.

Hope this helps............

Thanks for the reply gdoug, i think you are correct on the comp/mirror buttons thats what had me wondering why the seller said it had temp.

I have seen earlier models that you had to switch the display to show comp or temp thats why i thought he was accurate..

The other thing that has me wondering is it has a 7 prong plug and on the circuit board  in the mirror it has 7 prongs also.

Mine has 7 pins also, I believe some of the other wires are output to side mirrors that dim. The 3 that I have identified on mine are +12V, Ground, and Reverse signal input. This disables the dim function on the mirror when in reverse.

You are correct on the older models that switch from compass to temperature. I did some more searching around also. When mine powers up, all the LED's light up and it does show the celisus and farenheight symbols, but that function is not available in my mirror.

I had much better luck searching the salvage yards. I got mine for only $25. If you are shopping on Ebay, and find one that has temperature, make sure you get the correct temp probe for it. Most of these people are selling the mirror without the temp probe.

Good luck!

The guy i bought it from took it back with no trouble. Evidently he didn't realize they all don't have temp.  The info he got from the dealer was the mirror button worked the temp and the compass for just that on older models, that may be the case with yours?

I got another last night, this time it has the comp and temp button.

I got the temp probe and connector plug from GM; Here are the part numbers if anyone needs them;

Temp Sensor= 15047946

Sensor plug(with 2 wires about 12" long attached)= 12101856

You can get them at   gmpartsdirect website