Is there anything I need to know about swapping a PCM?
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12-03-2010, 12:21 AM
Join Date: Jan 2008
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Is there anything I need to know about swapping a PCM?
I reluctantly had to purchase a new PCM as mine had some issue where it wouldn't allow me to set it back to stock with my SCT tuner and completely wiped itself. So, the questions is: How do I go about putting the new PCM in without causing any issues? I know I need to unplug the battery but do I do both Pos. & Neg.? Or just one or the other? Is there a way to completely drain all power that is in the truck after removing the battery line? Is there a FAQ or a Walk-Through on this situation? Thank you for any responses!
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12-03-2010, 12:24 AM
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12-03-2010, 12:30 AM
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12-03-2010, 12:39 AM
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Disconnect the neg cable, key ign on for 10sec then off, dont need to wait, remove the 3 electrical plugs from the pcm, unscrew the 3 screws holding it to the firewall.
Oh early model years had a cover over the pcm so that cover would need removing first (removed mine ages ago)
Oh early model years had a cover over the pcm so that cover would need removing first (removed mine ages ago)