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    Connecting to Can Bus

    I'm installing a Kenwood DDX471HD into my 2014 Jeep Patriot. My only question is making the connections to the Can Bus. There are 2 connections I need to make that are near the OBDII scanner port. They are pretty easy to get to. I'm using an IDataLink Maestro interface with the Chrysler harness. I'm leaning toward using t-taps to make these 2 connections. I'm just wondering if anyone has any thoughts. Thanks in advance for any help.







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    Re: Connecting to Can Bus

    Nothing to add other then that's what I would be using..



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    Re: Connecting to Can Bus

    Thanks for the reply




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    Re: Connecting to Can Bus

    t-taps, HELL NO!!!!!!! either military splice with Super 33 electrical tape 2 zip ties on each or military splice with solder and super 33 electrical tape. the t in t tap stands for temporary. I see these fail all the time.



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    Re: Connecting to Can Bus

    The previous owner of my car put t's in for alarm it looked like. I spent 2 years tracking down one wire in the colum. Don't use em. Solder all the way



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    Re: Connecting to Can Bus

    Two things never ever touch CANbus wires: test lights and T-taps(or Scotch locks).




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    Re: Connecting to Can Bus

    Definitely solder. I work on cars quite often where someone did a bad wiring job and ended up with a list of problems. The horrible wiring ended up resulting in high resistance on one of the most delicate circuits on the vehicle. The can or bus line is the circuit that all the vehicle modules communicate with.


    I also recommend soldering with a flame type solder gun (and I don't mean open flame). If you use an electric soldering gun you run the risk of sending voltage to the can/bus line, which can cause some serious damage
    Last edited by Dub7sonoma; 05-19-2014 at 04:56 PM. Reason: More info



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    Re: Connecting to Can Bus

    Quote Originally Posted by Dub7sonoma View Post
    I also recommend soldering with a flame type solder gun (and I don't mean open flame). If you use an electric soldering gun you run the risk of sending voltage to the can/bus line, which can cause some serious damage
    I can understand the potential risk of using a mains powered soldering station, but the same risk is present regardless of what you're soldering. Any soldering station worth owning is electrically isolated to prevent ESD. That means Weller, Haako, no Harbor Freight crap. Adjustable temperature is a must.




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    Re: Connecting to Can Bus

    I figured the average guy might not own a good soldering setup such as those, and probably wouldn't even think about that. I just figured I should let him know before he created a lot of problems just by not knowing.



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    Re: Connecting to Can Bus

    Quote Originally Posted by quills View Post
    I'm installing a Kenwood DDX471HD into my 2014 Jeep Patriot. My only question is making the connections to the Can Bus. There are 2 connections I need to make that are near the OBDII scanner port. They are pretty easy to get to. I'm using an IDataLink Maestro interface with the Chrysler harness. I'm leaning toward using t-taps to make these 2 connections. I'm just wondering if anyone has any thoughts. Thanks in advance for any help.
    Those connections are note required for your radio. Maestro only needs those connections when you install it with a serially connected radio. In your case, that would be a Kenwood DNN, DNX radio from 2013 or 2014 model years or a DDX from 2014 model year with 4 digit part number such as DDX5901HD.

    Your radio cannot display anything from the OBDII port.

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