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Discussion Starter · #1 ·
i have a 2006 2wd tbss i have no commutation with engine or trans (trans shifts hard) i have u0100 , u0073 codes. the problem only happens when running i can take the trans of the network and i can get commutation to it but not pcm i have unplugged alternator and problem is still there powers and grounds are good and load tested with a lightbulb. can anybody help me thanks
 

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I have an 07 that did this long ago. Shifted very hard. Thought I was gunna blow the engine if I traveled over 30 mph. Found out the dealer had over filled the transmission. 🤬. Tranny flush and the problem was solved. Might want to check this option out.
 
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