The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-21-2020, 01:46 PM   #1
truckin 79
Registered User
 
Join Date: Jun 2014
Location: Lvld CO
Posts: 290
Overhead console temp/compass upgrade

Has anyone done this with a s-10 blazer overhead console that has temperature and compass? I bought one from the junkyard for 12, it is one of the short ones. I know there is a sensor probe somewhere in grill that I forgot to get. Does compass need any special wires or sensors I need to get? I like the over head lights,compass and temperature features. I looked in past posts but did not really see any explanation of wiring hook up. This is the type I bought do not have it hooked up yet.
__________________
79 Chevy 2wd BIG10 350 TH400
truckin 79 is offline   Reply With Quote
Old 01-21-2020, 02:20 PM   #2
Palf70Step
State of Confusion!

 
Palf70Step's Avatar
 
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 40,294
Re: Overhead console temp/compass upgrade

Looks like a neat Idea. Off hand I don't know anyone who has done it, but it looks interesting for sure.
__________________
Bill

1981 GMC High Sierra SWB Stepside

Member of Louisiana Classic Truck Club (LCTC)
Board Vendors
Bill's Gallery
Life isn't tied with a bow, but it's still a gift.
Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!
It's scary when you start making the same noises as your coffee maker.
Palf70Step is offline   Reply With Quote
Old 01-21-2020, 03:01 PM   #3
Bloodhound
Registered User
 
Join Date: Dec 2011
Location: Massachusetts
Posts: 138
Re: Overhead console temp/compass upgrade

Quote:
Originally Posted by truckin 79 View Post
Has anyone done this with a s-10 blazer overhead console that has temperature and compass? I bought one from the junkyard for 12, it is one of the short ones. I know there is a sensor probe somewhere in grill that I forgot to get. Does compass need any special wires or sensors I need to get? I like the over head lights,compass and temperature features. I looked in past posts but did not really see any explanation of wiring hook up. This is the type I bought do not have it hooked up yet.
I've seen (and intend to do) a rear view mirror with the temp, compass, and map lights. but haven't seen the overhead console done.
Bloodhound is offline   Reply With Quote
Old 01-21-2020, 03:32 PM   #4
hatzie
Senior Member
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 3,820
Re: Overhead console temp/compass upgrade

This is the pinout from the second generation Jimmy.

Name:  Console pinout.jpg
Views: 88
Size:  37.1 KB

You only need four of the wires populated for compass and temp display.
Battery power, Ignition power, Ground, Temp sensor, and Dome/Courtesy Lamp.
GM wired the temp sensor as a loop from the console ground on one side, through the sensor, and back to the console TEMP sensor terminal on the other. I would feed the ground side of the temp sensor from the ground pin on the console just like GM did to avoid ground potential differences. Ground is not always ground... If you pick up ground off the rad support or somewhere else it may not be the same potential as the ground on the console. This will throw the temp reading off.


You'll need a serial data connection to a compatible PCM & the VSS signal to make the trip computer work if your console has one.
__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.

Last edited by hatzie; 01-21-2020 at 03:39 PM.
hatzie is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:39 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com