I've been chasing ghost with this thing. I found the negative clamp was loose on the battery. I was getting random codes and random transmission issues including the dreaded wrench popping up. I unhooked the battery cleaned both post and made sure everything was tight and clean. So far so good, has anyone else experienced anything like this before.
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Welcome, nice gen 1. Are you asking if anyone has ever had a loose battery terminal cable? I am sure the answer is yes. But it sounds like you solved your problem and no more issues.