I don't know if this helps any but my wife's '01 Blazer LT does not have any of the additional features you describe. Her OH console is identical to my CC.T-bone02 wrote:previously before my crew I had a 98 blazer with the overhead compass. However, since it was an LT model the console not only had the compass display, it also had selections for average mpg, distance till empty, average speed, fuel used, ect. Is I possible to get our overhead consoles to do these calculations. Maybe we don't have the same computers ? This would be a cool feature, I miss it!!
HenryJ wrote:Are you going to have a trip computer display available?
I already have the overhead console without trip functions, but would like to add the trip computer.
How about a wiring harness with the two extra wires and correct connectors and a display with the trip functions? Would that be a possibility?
I would even be willing to return my display w/o trip so that your console would not be missing a display for future sale.
I'll know more tomorrow or Tuesday, but my gut says yes. About the harness, I've already been contacted about that by another member and it's a go I just need to figure out a price and exactly what I need to make and how to explain it properly.
24digger wrote:The consoles with the trip computer have a mode button and the regular temperature consoles just have an on/off button.
Thanks for the info and link I will keep an eye on both theads.
Hopefully Neal (Arisa) will join here soon. I don't know what can be offered in the way of a group purchase though. The number of displays with the trip functions may be limited.S10CREW01 wrote:I'm interested in a group perchase if one starts on this sight....
GM PART # 12376611
PACK QTY: 1
GM LIST: $274.00
OUR PRICE: $191.80
GM PART # 12102629
PACK QTY: 1
GM LIST: $74.27
OUR PRICE: $37.14
f9k9 wrote:24digger wrote:The consoles with the trip computer have a mode button and the regular temperature consoles just have an on/off button.
Thanks for the info and link I will keep an eye on both theads.
Whoa We can toggle back and forth from metric to SAE so, there is more than an "on/off" button.
Tom Masterson wrote:I recently installed an overhead console to my 02 Blazer-X with the Temp/Compass computer and wondered if it was possible to upgrade to the full trip computer. I had one of these computers in my 2000 Astrovan and missed it when I went to the Blazer. As luck would have it, I found the full trip computer module (a >$350 dealer special order) on ebay and won it with a $15+ship bid!!! For this price I took a chance I'd be out of luck, so off I went to research.
I was unable to find any wiring info on the trip computer in my Chilton's manual, so I signed-up with Alldata ($25) and started checking wiring and connector diagrams. It turns out doing the trip computer is a piece of cake! it only takes two more wires with only one needed to be fished to the dashboard. The second taps into the constantly hot wire of the console - the orange one(s).
The key, on this year anyway, is the computer gets its data from the serial data bus which connects various components to the main computer. The most convienent access to this system is at the Data Link Connector under the driver's side of the dash. This is the plug a tech would attach his code reader to. On my truck's connector, starting on the top left counting accross to the right, it is pin number 2 - with a purple wire going to it. I just unscrewed the connector and spliced in the purple wire.
The other key is the connectors that plug into the console computer. On the temp/compass its a 6 pin connector and the trip has a 9 pin connector. The great thing is the pinout is the same for the first 6 pins! Because I couldn't get the 9 pin connector - dealer wants $66 for a connector pigtail!!!! I just used the 6 pin after shaving off the one "ear" that would prevent it from plugging into the 9 pin socket. Pin 7 on the computer isn't used. Pin 8 taps the orange hot wire in the console and pin 9 is a new wire to the Data Link connector under the dash. For about an hour's extra work I have Average fuel economy, instant fuel economy, range and average speed along with temp and compass VERY COOL!!! I backed out of the driveway as a test, then back in... hummm 2MPGs. I then jumped out danced a jig and highfived the air ( I was alone ok?) I was so happy with the results.
My console is out of a '99 and I have NO idea what year the computer is out of so I suspect this is do-able for just about any late model vehicle that had this computer as an option. The old computer slides right out after removing the lens/button face and the trip computer slides right in. The only "nit" I have to yet pick is the buttons are the wrong ones now. Instead of US/MET and ON/OFF, the buttons should be US/MET and MODE, but this is a $35 dealer order. unless I can find one in a junkyard this may stay a while.
Hope this helps others considering this mod.
And here is a link where I uploaded the overhead trip computer plug.: http://thomas.j.masterson.home.att.net/ ... cWtrip.gif
Here's the trip/compass computer plug just for reference: http://thomas.j.masterson.home.att.net/ ... mptemp.gif
NOTE! On the plug pinout for the trip computer pin #15 Trip computer class 2 serial data wire color is listed as YELLOW. This is the color on the FACTORY wiring harness that plugs into the overhead unit. For those of us who are making our own wiring this is the wire that goes to the PURPLE wire on DATA LINK CONNECTOR shown here: http://thomas.j.masterson.home.att.net/ ... nector.gif
IMPORTANT NOTE!!!! This is information that I used to wire my 2002, I can't guarantee it works with other years. My experience is these things don't change much, if any, between similar model years. My computer is out of an unkown year and works fine in my '02
Hope this helps. Take your time and double check your wiring. It took me an afternoon to wire and install my console initially, and another hour and a half to fish a new wire, make connecotrs and install the new computer. If you are just upgrading the computer it should be a piece of cake because the first 6 pins are the same. Pin #7 goes to the orange wire of the console, pin#8 is nothing, and pin#9 is the new wire fished to the PURPLE WIRE on the DATA LINK CONNECTOR.
I actually added a Homelink unit to my console and it works slick. My wife and daughter both use regular garage door openers and my Homelink unit works fine with them. I wonder if your opener may use rolling codes so you can only get one Homelink unit to syc with the opener. Humm, dunno.
It would be worth a e-mail to Homelink. Here's their website http://www.homelink.com/home/home.tml
That may be the case. I am hoping that the required wires are already in the connection forward of the fuse panel. If that is the case it may be possible to insert the needed connections there and save tapping the OBDII port wiring.Blaze One wrote:...all i would need to do is find a console with the extra options ( fuel mpg etc. ) and swap the computers behind the lense and attach the 2 needed wires ...
HenryJ wrote:Hopefully Neal (Arisa) will join here soon.
f9k9 wrote:Firstl, welcome to the forum. Second, thanks for the advice with this particular mod and the heads up about GMparts direct!
border man wrote: I need to run all new wires from the top and splice them in where needed.
Arisa wrote:border man wrote: I need to run all new wires from the top and splice them in where needed.
No splicing !!! That's what my harness does !!!! Splicing is a bad thing !
border man wrote:I have a 2000 Sonoma with no RDS. Also, I dont have the temp sensor, and the console I have is the standard one(comp/temp)
Nope. I just connected the Bravada harness to my C209 connector.24digger wrote:HenryJ did you have to do anything under the hood with that harness?
I'll let you know for sure in a month or so.Blaze One wrote:Has anyone tested the acuracy of these systems yet ?
Sounds like you did good! The wires for the pick ups differ at the C209 connector. While the plug is the same, some of the wires are different or non existent.24digger wrote:... Even picked up a harness for my 95. I plan on putting the console from the crew in it someday...
24digger wrote:...how do you get the mirror off of the mounting block, the one I picked up today was already broke of the glass. Looks like it snaps out but I don't want to break the bracket.
GM data wrote:# Insert a small, flat-bladed tool into the slot from the bottom.
# Press slightly in order to release the tab.
# Slide the mirror off of the support.
Thanks! Is the best method of contact your email? Nwhitaker@AstoneFabricators.com , ArisaLT4@hotmail.com or NWhitaker@comcast.netArisa wrote:...If you need me I'll be checking in on ZR2.com.
Later bros and keep up the good work !!!!
scott750 wrote:...I have a 12 page Word Document file that details every wiring diagram from the BCM to the radio to the little temperature sensor. It also has the variance maps, homelink programming procedures, everything I used to install the thing...
There are three screws that attach it to the roof. One at the front and two under the lense of the dome light. Gently pry off the dome light cover and you'll see them.SONOMA915 wrote:...can you post some pics of how to remove the overhead console? If not can you give the location of the bolt/screws that hold it up?
The C209 (Dome harness to body harness connector) is the connection for the harness. It just below the base of the A post and forward of the interior fuse box. It is the big plug at the bottom of those pictures.T-bone02 wrote:Hey guys, I understand everything except the connection behing the dash. Does the plug connector at the bottom of the pics plug in behind the a-piller, or under the dash at the connector for the hpIII programmers?
SONOMA915 wrote:Thanks, I will be doing this mod pending the end of the item I'm bidding on.
SONOMA915 wrote:I won my ebay auction from S-10WAREHOUSE. All together it was about $64.00, including the harness and shipping.
01BlaZer2 wrote:as an FYI for everyone i am running 32's and thought about this mod. My speedo is corected through an HPP3 and i asked Arisa if he knew if the HPP3 would also correct the OHC. He Replyed saying that if it corrects the PCM its should leave an accurate OHC reading I contacted Hupertech on this and they replyed with this.
On vehicles that come from the factory with the electronic mileage indicators our programming will inadvertently cause it to be inaccurate. This is true with any after market tuning product. Thanks
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