How to: Install DIC in gmt400 overhead console

[mr98z71]

I would like to get one of these DIC for my 1998 Z71. I can't seem to find one at the local yard so if anyone has a full function one, PM me!

 

[mr98z71]

Does anyone know if a dic from a chevy astro will work?

 

[VorTecxas]

Good question. I dont imagine they're any different wiring wise

Sent from the Rat powered LG

 

[mr98z71]

The reason i'm asking is because I finally found a dic at my local scrap yard but it is out of a chevy astro van. Only problem is somebody took the temp sensor from it. I found a temp sensor out of a blazer but I'm not sure if they can be mixed matched like that, I don't see why not, it's just another thermistor.

 

[1997chevydriver]

It'll work

 

[great white]

The reason i'm asking is because I finally found a dic at my local scrap yard but it is out of a chevy astro van. Only problem is somebody took the temp sensor from it. I found a temp sensor out of a blazer but I'm not sure if they can be mixed matched like that, I don't see why not, it's just another thermistor.

Depends.

There are 2 sensors depending on years. Or maybe it was the temp/comp model and the temp/mode dic. Can't remember exactly.

Either way, get them mismatched and the temp reading will be incorrect.

 

[mr98z71]

Just an update on the install, The Astro module worked with the blazer's ambient sensor (Both cars were 2000's). Everything works great, I'm very happy with it. MPG seems to be dead on. My only question is when you look at the wiring diagram, pin 14 going to the DIC module should have a 12 V constant. My harness did not have wires at pins 13 and 14 so I didn't end up hooking up 12 V constant to it. Does anybody know why you would need a constant source of power going to the module?

 

[mchlgriffith]

Just an update on the install, The Astro module worked with the blazer's ambient sensor (Both cars were 2000's). Everything works great, I'm very happy with it. MPG seems to be dead on. My only question is when you look at the wiring diagram, pin 14 going to the DIC module should have a 12 V constant. My harness did not have wires at pins 13 and 14 so I didn't end up hooking up 12 V constant to it. Does anybody know why you would need a constant source of power going to the module?

i would assume the constant source of power would be to store some kind of memory, like the average economy, gallons used, average speed? i could be wrong .... (edited for typo)

 

[mr98z71]

That's what I would have thought but my avg mpg stays stored in anyways... Weird

 

[mchlgriffith]

That's what I would have thought but my avg mpg stays stored in anyways... Weird

i dunno then i guess its a mystery .....