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Awesome I think I may have made a mistake here ! So I understand the GMLAN schematic and I'm assuming it's terminated inside the ECM with a 120 ohm resistor but I do not see a 120 at the datalink I'm not using the VCIM but that should'nt matter. I will however check and see if I have the LAN correct or not. Thanks
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Great info I'm gonna cheak the can routing and see if I have maybe made a mistake on which module goes where in the system.
Thanks
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Checked wiring of the can bus on the weekend.......all wired correctly so I tried putting a 120 ohm esister after the BCM....still no change!!! I just don't get it.