GmTruckHQ is the resource on GM Trucks, Suspension, engine information, Body Modifications, painting tutorials.  Modifications to suit every need, budget and whim
Home   Forum   Chat   Register   Today's Posts   Search  

GMTruckHQ is the premier GM Truck Site on the internet. Registered Users do not see the above ads. Please Register - It's Free!

Go Back   GmTruckHQ > Specific Model Forums > HD Trucks Fullsize Trucks & SUVs

DIC Upgrade Info


Reply
 
LinkBack Thread Tools Display Modes
Old 07-30-2008, 11:26 AM   #1
Heathd's Avatar
Send PM    Add to friends
Join Date: Oct 2007
 
  Heathd is offline    
PedoBear Mentor

This is a really simple upgrade, so simple, I wouldnt even call it a modification. All gmt900 trucks can do this (except LTZ trim levels, but chances are you have something similar built in), regardless of what engine, etc..

This will allow you to access your fuel mileage, range, gallons used, V8/V4 mode notification, tire pressures, tire sensor relearn, key fob relearn, chime volume, entry and exit lighting schemes, lock and unlock schemes (including automatic lock/unlock), unit and language choices, and engine hours.

The wires are already there just waiting to be used, and this is relatively cheap. It should cost about 100 even after shipping. Although you may be able to do it for a little cheaper.

The GM part number is 19159438. It will give you the new dash trim piece and the buttons, and here is a link to the part:
GM Parts Direct: Your direct source for Genuine GM Parts

1. Make sure you have the truck turned off, and if your extra cautious, you can disconnect the neg battery terminal, but I dont think its neccesary.

2. Remove the dash trim piece that is left of the steering wheel, gently, by hand.

3. Remove your light control switch and the dimmer switch, they are just held in with clips. No tool should be needed

4. There are two unused cables connected to the back of the trim piece, these are the ones you will be using for your DIC controller.

5. Reinstall everything, light controls and light switch, as you removed.

6. Install the unused wires into the DIC module in your new trim peice, re install the trim peice onto the dash, reconnect the neg battery terminal if you disconnected it, and turn on the truck.

Enjoy.

Reply With Quote
Old 11-26-2008, 10:09 AM   #2
paultruck's Avatar
Send PM    Add to friends
Join Date: Nov 2008
 
  paultruck is offline    
Registered User

My local dealer didn't have the switch/panel assembly, so I just bought the 4 button switch (p/n 15947841 Switch, Commutateur, Interruptor) and cut out the panel ... very carefully.

I still ended up with a couple light scratches on the front of the panel, but they aren't noticeable. Otherwise it is really great.

The switch was sort of a loose fit in the retainer and required a little extra something jammed between switch and retainer. I think I'm going to take it back apart and put 1 layer of duct tape on each side.


Does anyone know of other similar Options, that only require hook up to the existing wiring harness?
- On another board I surfed by, someone said there was a Plug-n-Play connection for trailers in the harness. They said something about adding a fuse to complete it. I don't tow, so I passed it by.
- My truck didn't have the Ampmeter or Oil Pressure gages which are positioned above the Gas and Water Temp gages. Has anyone located cable connections or found if they could be installed without replacing the Speedometer assembly?

Reply With Quote
Old 12-01-2008, 03:43 PM   #3
paultruck's Avatar
Send PM    Add to friends
Join Date: Nov 2008
 
  paultruck is offline    
Registered User

The automatic door locking system couldn't be disabled with the DIC.

I set to the minimum annoyance, which was:
Lock: after vehicle gets to speed.
Unlock: when gear shift is put in Park.

Does anyone know of a work-a-round to defeat the automatic door locking, without interfering with Power Locks and Remote Locking?

Reply With Quote
Old 12-01-2008, 04:33 PM   #4
Heathd's Avatar
Send PM    Add to friends
Join Date: Oct 2007
 
  Heathd is offline    
PedoBear Mentor

Quote:
Originally Posted by paultruck View Post
The automatic door locking system couldn't be disabled with the DIC.

I set to the minimum annoyance, which was:
Lock: after vehicle gets to speed.
Unlock: when gear shift is put in Park.

Does anyone know of a work-a-round to defeat the automatic door locking, without interfering with Power Locks and Remote Locking?
The automatic door locking feature is considered a safety measure, and I havent found a way to bypass it.

And you could always install an aftermarket oil gauge and voltage gauge in a pillar pod.

Replacing the speedo is the easiest, its pretty much plug and play. However, you will have to find someone to rewrite your current mileage on to the new speedo (to keep it legal). Some places offer this service online, and some dealers will do it for about 80 bucks.

If you are patient, you can get the switch/ panel assembly for the DIC from gmpartsdirect.

If you have AP0 or AP8, you can have factory remote start installed on your truck, although aftermarket is better....

Reply With Quote
Old 12-20-2009, 03:28 AM   #5
nti06's Avatar
Send PM    Add to friends
Join Date: Dec 2009
 
  nti06 is offline    
Registered User

Quote:
Originally Posted by Heathd View Post
If you have AP0 or AP8, you can have factory remote start installed on your truck, although aftermarket is better....

I have seen the newer remote start system key fobs with the screens on them. Are the aftermarket systems still better than this newer version of GM's remote start system?

Reply With Quote
Reply

Bookmarks


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
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


 


Vin Decoder Info