6 pin port is a J1708/J1587 network. 9 pin is J1939. The two networks aren't cross compatible IIRC.
Plug into ecm
Discussion in 'Trucks [ Eighteen Wheelers ]' started by ready2truck, May 30, 2021.
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Page 3 of 3
Discussion in 'Trucks [ Eighteen Wheelers ]' started by ready2truck, May 30, 2021.