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I've asked for help on this issue before and received suggestions that I have tried. My truck has been layed up for 6 months this time after taking the motor and trans out for trans work. Reinstalled both and had NO START or CRANK. Cleaned and reconnected grounds. Tried 2 ignition switches. Went through the junction box 3 times. Jumped the purple wire to the starter. Starter turns over without issues. Now I have Link Error at the data port. Checked connections at the ECM and TCM. Don't find any issues. The link error showed up after the last junction box check.
I'd appreciate any suggestions, or have you tried, or did you check. This is really getting old.
2007 3SS with 68276 miles.
 
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