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I am looking for a diagram on how to wire up a diagnostic cable from the J2 port on the TCM to a OBD port. I have seen the instructions before, just cant remember where.
With this you should be able to use your own diagnostic reader instead of a MSD/ICE.
I am looking for the schematic for a TCM on a HMMWV. There is 2 grounds on the J2 diagnostic port. I need to know which one is the chassis ground and which is the signal ground. Pin A and F is the grounds.