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Thread: ALL transmission codes on??? need help

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  1. #6
    Join Date
    Dec 2008
    Location
    South Carolina
    Posts
    794
    check the pink wire at the trans harness to see if it has voltage. I believe it is pin E in the plug for the trans. The wire is coming from the IGN O fuse in the fuse block inside the driver side door. that is the power supply for the trans electrical. I had the same problem you did, same codes and everything. so i just spliced in that pink wire just after the fuse at the fuse block and ran a new wire down to the trans harness and spliced it in. I dont think mine was the igntion switch tho cause when i ohmed the wire from trans to fuse block it read OL which means it was either cut/pinched/frayed.
    Last edited by chvy=power; 07-25-2010 at 12:31 PM.
    2008 GMC Sierra SLE....370ci LY6 with some goodies SOLD
    1995 C2500- LS1 swap with a mp112
    build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html

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