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Old 02-14-2018, 08:19 AM
Yngdmax92's Avatar
Yngdmax92 Yngdmax92 is offline
Join Date: Sep 2013
Posts: 655

[QUOTE=IOWA LLY;1093175]TCM is definitely a good place to start.

But if I remember correctly you should be able to communicate with the ECM even with a bad TCM. So itís also likely you have an ignition switch issue or just a blown fuse.

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Tried swapping tcm out, same thing. I'll go throughout fuses now
2003 2500 hd cc/sb (leftovers) MPS 63.5 ihi, built trans, airdog 150, 30 overs..... Sold

New and improved! 2007 classis lbz LS ec/sb

Egr delete, pcv re-route, PIPED, airdog 4g 165,

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