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CANBus Triple Installation http://i.imgur.com/mDSQtvR.jpg x1This was done on my 2013 Genpu with Tech Package, will work on 2012 with tech, not sure about earlier. Things you will need... You don’t necessarily NEED these but they seriously make this a breeze, and it’s clean af. I will include instructions for doing it without these items as well. x6 I have chosen to hardwire my CBT into the wire harness behind the instrument panel, as it seems to be the easiest and cleanest way to wire it in. (Huge thanks to Derek for the pinouts and documentation on his website www.canb.us. Saved me so much time and frustration) First thing’s first, take the instrument panel out. 1. Release the steering wheel adjustment lever and push your steering column all the way down and pull it as far out toward you as it will go. 2. Press down on the back corners of the rubber boot on top of the steering column to expose two phillips screws that you must remove. One on the left, and one on the right. Don’t drop the god damn screws! http://i.imgur.com/OQo7jAm.jpg 3. The remainder of the instrument panel is fastened with plastic clips that will simply pop out if you pull the entire panel straight toward you. http://i.imgur.com/iotdd48.jpg 4. You should now be able to remove the wire harness that attaches to the instrument panel, and it should come right out. Wire in the CBT harness NOTE: Because we will be physically adding our node to the CAN bus by cutting into it, we need to enable the termination resistors on the CANBus Triple. This maintains noise immunity on the CAN network by adding the resistor to the connections between CAN High and Low. If you want to know more about why this is necessary check out the Wikipedia article on CAN Bus Networks ( ), particularly about Architecture and Layers. Just place a drop of solder on the jumper terminals labeled Term1 and Term3 (not needed on 2). http://i.imgur.com/9emUYSZ.jpg *If you do not enable the resistors, you are going to cause an interruption in your CAN network and nothing will communicate correctly when your CANBus Triple is connected. (i.e. shit will freak out) You can also wire a 120 Ohm resistor between CAN High and CAN low on either end of the wires we cut (Shown below). Using the resistors on the CBT is a better way to go as this makes it super easy to remove the CBT, plug in a jumper to our ribbon cable and be back to stock functionality. The wires we will be tapping into and their corresponding functions are listed below: http://i.imgur.com/Hp0d6vG.jpg http://api.viglink.com/api/click?for...orums&txt=here Above Image Credit - Derek @ www.canb.us Fuse panel location http://i.imgur.com/4bHxvAH.jpg 1. (POWER) Red will connect to the fuse panel on the driver side with the Add-A-Circuit. There are two spots you can wire this in. If you do not have one, you can wrap the wire around one of the ends of the fuse and put the fuse back in. http://i.imgur.com/bFOzfKM.jpg 2. (GROUND) Black will ground to the chassis via the bolt inside the same fuse panel. I have used a ring connector to make it easier to remove and re-attach the wire if need be. It also works just as well to strip a good chunk of shielding from the wire, wrap it around the bolt and tighten it back down. http://i.imgur.com/4BFb5N3.jpg 3. (Analog 0 & 1) These two wires are in the large bundle behind the instrument panel. They are Brown and Sky Blue (both with two grey stripes). Brown will connect to the White wire in our ribbon cable, and Sky Blue will connect to the Black wire in the ribbon cable. http://i.imgur.com/CCJMSTu.jpg 4. (CAN 2) Also behind the instrument panel, but this time in the bundle of wires that plugs into the gauge cluster, the White and Red wires (both with 1 stripe this time) will connect to CAN2 on our CBT. White will connect to the Green wire and Red will connect to the Blue. http://i.imgur.com/n5UkBak.jpg 5. (CAN 1 & CAN 3) This is where we are physically separating the CAN network. Cut the Grey and Green twisted pair (they are literally twisted together) in half. -On the left side of our cut, we are going to wire the Grey wire to the Yellow one in our ribbon cable, and the Green wire will connect to Orange. http://i.imgur.com/uYHkNBi.jpg -On the right side of our cut, we are going to wire the Grey wire to the Purple one in our ribbon cable, and the Green wire will connect to Grey. http://i.imgur.com/po8oanr.jpg 6. Tuck the wires back in nicely, and put your dash back together because you are done. For easy access, I have put my CBT unit in the storage where your OBDII port is. Pop out your OBD port and run the ribbon cable into the storage area, and that is where my unit sits. I previously popped the OBD port out and have a bluetooth adapter plugged in that sits behind the dash, so this was not a problem for me. |
Pardon my ignorance, but what do you intend to monitor or change with this? Instrument panel, lighting, radio, HVAC? |
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I'm a computer moron. You could set TPMS alarm sound to go off for KR, AFR, BAT? I can monitor engine PIDs through AP or Torque app. Could you force SWAS disable with traction control button? Reverse lights on when you unlock car like GM? I'm not sure what systems are on CANbus and what are just simple circuits or separate communcation. |
It would probably be much easier if you hit up the CBT forums to see what everyone is doing. |
This is just one way to set this up. It can sit between literally just about any bus in your vehicle you want. Here are a couple videos, one from The Duke here on msf. This little unit is only as powerful as the ideas you throw at it https://m.youtube.com/watch?v=tj0AsuT4f8g https://m.youtube.com/watch?v=2bSiRKTtazo Because this thing has multiple digital and analog input/outputs you can control tons of other shit. Like external displays etc. P.S. I am absolutely going to hook this up to the TC button to disable SWAS. Fuck SWAS.... |
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Add-A-Circuit Micro
CAN_bus