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  1. Kodiak & Topkick Forum
    Hello and good day, The odb2 trapezoid wont acess the ECM, just the transmission and abs and SRS. 2007.5 LMM c4500 bus Should I have a j1939 9-pin port? Are there ports in the engine bay under the hood? -Bhk
  2. 06-07 LBZ & LLY Duramax Powertrain
    Bought an 06 Topkick C4500 with LBZ motor in a non-running condition. Truck has less than 100K on it. Batteries had been disconnected so no codes. Rebuilt primer and it pumps up good, FRP 9k while cranking. It hits a little while cranking. Where to go from here? Anyone one have a trouble...
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