47-55.1 1953 3100 "Honey-do"

[rnrdthefox]

Pool table pic

[rnrdthefox]

I'm also lucky that my neighbor happened to have access to a high-end oscilloscope that reads both GMLAN and LIN networks - A key part of deciphering the messages that need to be captured and programmed into the microcontroller. We were able to capture the message sequences for each standalone controller, the messages from each seat, and the handful of messages that needed to be replicated from the HVAC unit. At this stage, we have this working. There is a glitch that we are trying to figure out where the seats get out of sync with the switches sometimes for an unknow reason. It's easy to reset by turning the key off and back on again. But not so easy if you are driving. As a backup if needed, I will hide a relay and switch that cuts power (same as turning the ignition off) to the seats to reset them while driving if we can't get the software glitch figured out. But my neighbor is a perfectionist and said he wanted some time to look into it.

Here are a few pics of the equipment, microcontroller, and the start of the process of "de-wring" ~ 70% of the wires from the harness that I won't need. The pic below is just the wires that I've de-pinned from the Airbag module and were later removed from the harness.

I've been waiting for the seat programming to be done so that I didn't disrupt some wiring inadvertently while removing wires. I'm confident that I can start that process now.

Next, I need to determine where all the wiring will layout so that I can cut the hole in the firewall, mount a few ECUs under the dash etc. It's all related to finishing the cab, so I want to get it going.

Thanks, and that's all for now.

[youngrodder]

Man that is crazy...and very confusing. I don't know where you would begin. Then after you have all the wiring figured out you need to try to hide it all. Very cool concept tho to have the vintage truck full of modern technology.

Marc

[rnrdthefox]

Originally Posted by youngrodder

Man that is crazy...and very confusing. I don't know where you would begin. Then after you have all the wiring figured out you need to try to hide it all. Very cool concept tho to have the vintage truck full of modern technology.

Marc

Yep, I get it. First you have to have some desire for self-inflected pain. You also need to start with a complete wiring diagram for the vehicle which I have. I couldn't do it without it. The only options I plan to keep are:
- Relay circuits and fuses for items that are left (all of this resides in the under-hood fuse box). I will repurpose some for the Vintage Air, Stereo, and misc items
- Heated and cooled seats, with power adjustments
- Inside rear-view mirror with outside temperature and compass and auto dimming. I down-graded to a 2007 mirror to get rid of the extra on-star buttons.
- Auto headlights at dusk (requires one small sensor to be retained and added to the dash).
- Power windows, door locks and alarm with disablement, remote entry and start.
- Circuits for headlights, turn signals, brake lights, running lights, and driving lights.
- Wipers with variable delay, fast, slow settings (all controlled by the BCM and using existing wiring with an aftermarket motor for the 3100.
- I will also integrate an aftermarket stereo into the harness so that the steering wheel controls still work. I've already tested this on the pool table and it works.
- ECUs: ECM for engine, TCM for Tranny, (FSCM) Fuel System Control Module, RFA for remote entry, Passenger door controller, and (BCM) Body Control Module for everything else that remains.

I've removed all the stability controls, trailer brake module, ABS, Airbags, Onstar, SirrusXM, rearview camera, proximity detection, and a host of other misc things. I've still got a ton of wires to remove that i cut starting and the second row of seats that control things like the rear hatch, HVAC, rear entertainment, etc. It's a VERY tedious process and not everyone's cup of tea.

If I'm lucky, I end up with a number of modern conveniences, reliable factory harness' for both chassis and in the cab and something that will be a daily driver for years to come. But it is a huge undertaking and many hurdles left to overcome including stuffing what's left into the truck.

thanks
Renard

[dsraven]

yeah, I'm looking forward to reducing the factory harness on my frame swap. no rear doors, no power midgate, no power sliding roof section, no power rear hatch door, and on and on. gonna be fun....ok, well not THAT much fun. haha
keep pn posting stuff, it's cool to see how you go about stuff.

[rnrdthefox]

Originally Posted by dsraven

yeah, I'm looking forward to reducing the factory harness on my frame swap. no rear doors, no power midgate, no power sliding roof section, no power rear hatch door, and on and on. gonna be fun....ok, well not THAT much fun. haha
keep pn posting stuff, it's cool to see how you go about stuff.

Thanks. What year and donor are you using? I might have some wiring diagrams you can use if you don't have them already.

[dsraven]

I'm using an 04 GMC Envoy XUV. 4.2L inline 6, auto O/D with 4x4. 3.73 axle ratio.

[rnrdthefox]

Sorry I don't have that. I think paying $100 or so is worth it to have a complete wiring diagram in a searchable PDF for what you are about to do. I was lucky and found a 2008, 2010 and 2013 complete wiring diagrams for the CK series Truck and Cadillac SUV platform. In the early production years, the wiring diagrams are missing a few things and then they mature with the subsequent years. Nice thing about paying for the service at places like Alldata or Automotive they should be up to date.

thanks
Renard

[dsraven]

one of the parts stores here has all data and can print off circuit diagrams. I have also thought of buying the all data program when I getthat far along to need it.

[rnrdthefox]

A quick update so I don't fall too far behind on progress.

Still working on the inside of the cab. Need to get the radio mounted. I was going to put a double din radio in the transition from the console to the dash and have the HVAC controls in the location of the stock unit. This was also assuming that the door locks and window controls were mounted on the doors. But, a while back I decided to move the controls to the center console and mount the radio in the stock location.

I wanted something that fit the curvature of the dash and the size of a single din opening. I decided to use a wooden buck to form the profile I wanted and didn't look too out of place. Welded it to the dash after some fitting and cut the opening.

[rnrdthefox]

Finished putting in the lower air dam and drilled the holes for the transmission cooler. Put the new grill on briefly to show the boss that there is still a bright spot down the road despite the fact that I'm talking too much time.

[rnrdthefox]

Finished body working the dash and started looking at the underside of the dash for the vents and the cover for the steering column. Instead of re-inventing the wheel, I'm going to use the under-dash vents from vintage air.

I cut the vent housing into two parts. The second part that would normally be for the center of the dash will be relocated to the driver's side. I will body work these to fit the dash a bit better and close of the ends and the holes that I don't need. Eventually, they will be painted to match the dash.

[rnrdthefox]

I've been kicking the steering column cover down the road for a bit because I don't have a lot of experience metal forming from scratch. It takes me a while to get going. Finally got some ideas after playing around with some cardboard. I wanted it to only be low enough to hide things and remove the possibility of hitting it with your knee. Here is what I came up with.

The "ring" of metal or lip at the transition point of the dash will be used to attach a black leather boot to allow the column to tilt up and down. The cover over the column will be covered with the same material. Right now, the two screws are there until I confirm with the upholsterer that my plan will work ok. Then I will cut the two parts and weld them together and then to the column.

[joedoh]

fancy!

[8man]

That's a lot of work!

[dsraven]

nice work and thinking outside the box. it takes time to do a quality build.

[Rickysnickers]

Nice work you are doing!