Yeah I knew it wouldn't be easy but i'm usually up for a challenge. I'm not sure I would agree that the wiring harness is a mess though cuz mine seems quite neat. The trouble is that there's no single wire for each key position (at least not in the ignition harness). I'm assuming it's either a data signal of some sort or there is one wire that the voltage varies in every key position.

 

I installed a bulldog in my 05 dakota a few months back. I used the vehicle wiring chart on their website, and didn't have any trouble locating those wires. There are more than one accessory and ignition wires on the vehicle but not all of them need to be hooked up. However, In one case using the correct accessory wire the remote starter worked correctly but caused a check engine light that would only clear by removing the battery. I ended up using an alternate accessory wire and the CEL went away.
I must say that some of the information regarding the resistor values needed for the door locks and lights was wrong which required some trial and error to get everything working correctly.
I will help you with more details if you need to know exactly which wires i used and what resistors i used.
This was the fourth one that i have installed and also the most difficult but with a little help and good information its a much easier project.

 

This will also be my fourth remote starter install. I checked the wiring chart for a 2005 on Bulldog's website and that seems like a more typical ignition. If you check the chart for 2007, it doesn't show wires for acc or starter. It just says u need a XK09 or DB-ALL. Here's what I found when I probed all the ignition wires in my truck.

Harness #1 (left side of steering wheel)
Blue/purple: Constant 12V
Pink/grey: 12V in ignition (run) key position
Purple/grey: Voltage varies in all key positions
Black/grey: Ground

Harness #2 (right side of steering wheel)
White: Constant 4.5V
White/orange: Seemed to be constant 0.5V, maybe ground?
Red/blue: Constant 12V
Black/grey: Ground
Pink/grey: 12V in ignition (run) key position
Purple/grey: Voltage varies in all key positions

I'm reviewing the docs for the XK09 and DB-ALL to make sure it will work before I buy it. Does anyone know the difference between the two? They seem pretty much the same to me.

 

Does anyone know if the CHTHD2 T-harness is compatible with my truck (2007 Dodge Dakota)? It looks like it might be but I thought I read somewhere that it wasn't.

 

I looked at that too and your right it does appear you will need one of the modules they refer too in the notes at the bottom of the chart. I can't really see what the advantage is between either two modules and why would their need to be 2 different modules that appear to do the same thing. Either way it looks like your going to need it to finish the install.

 

I ended up buying the DB-ALL. The price difference was minimal (like $5) so I went with the one that seemed to have more features/support. I also had to buy the XKLOADER2 so I can flash the [vehicle specific] firmware on the DB-ALL.

It should hopefully be pretty easy now, but we'll see :-P It would be REALLY easy if they had a t-harness available for this truck (idk why they don't). They only had it for vehicles with tip-start which I think is only available on 2008's and up.

 

I installed the DB-ALL this weekend. It was surprisingly very easy. Everything works well except that it won't remotely start. When I try to put it in manual transmission mode (engage parking brake, tap foot brake, press start on remote), it says remote start error and blinks 7 times which means that the manual transmission mode wasn't set. I checked the brake, parking brake, and the toggle switch and they are all as they should be. After reading the troubleshooting section in install guide I found out that I need to connect the tach wire.

The wiring diagrams say that I can connect the tach wire to any wire that's not red "at any ignition coil or fuel-injector." Where can I find the ignition coil and what does it look like? How about the fuel-injectors, aren't they located inside the engine?

 

I tried to connect the tach wire to an ignition coil and it still wouldn't let me enable manual transmission mode. Any Ideas?

What should the tach wire read on a meter (for a Viper 5901)? The ignition coil read 14V DC when the engine was running and nothing when it was off. If I put the meter in AC mode it jumped all over the place when the engine was running and nothing when the engine was off.

 

I had the same problem when i tried to connect my tack wire as well but it ended up that i didn't need it and i just used tachless mode to start vehicle. there are 8 coils. one for each cylinder on top of each spark plug. i think there is a blue and red wire and i tried using the blue wire. I never tried to use a fuel injector wire but i wonder if one of those would be what you need in order to make it work. I think my instructions said use an AC wire on the coil or fuel injector. If the coil wire is DC like what your meter is indicating try checking an injector wire for AC.


hmmmm, also make sure your hood pin switch is correct. was the hood open when you tried to start or put it in manual transmission mode. I'm not sure but if that hood is open and remote starter sees a ground there it might not work, just a thought.

 

What year is your truck? I know there is a major difference with the ignition wiring of my truck (a 2007) and a 2005 Dakota. I needed the DB-ALL (or similar module) but it isn't required for the 2005 Dakota. I cannot use tach-less because I have a manual transmission and Viper says the tach wire has to be used on all manuals.

I tried both a fuel injector and an ignition coil. Both of them read what a typical tach signal should read on the meter (varying frequencies corresponding to the RPMs) but the Viper 5901 still wouldn't learn the tach.

I had the hood open but I put something on top of the hood pin so it did not see a ground. The real problem is that it will not learn the tach though and it shouldn't matter if the hood is open or not when learning the tach.

I have been emailing Viper support and was surprised that they were willing to help me because I thought they only dealt with authorized dealers. According to them, the DB-ALL provides the tach signal to the 5901, NOT the vehicle. So I connected the tach to the DB-ALL and it still won't learn the tach. That is where I have left off. I e-mailed them back and haven't received a response... maybe I stumped them :-\