Ok gents, new to the forum. Here's my issue, 2013 Challenger R/T 28k miles. Mr squiggles comes on after engine start. I'll shut it down, restart, and all is fine. Code is U0101. I checked the batt voltage since it was original, it was dropping to 9vdc on engine start. Replaced the battery, cleaned the grounds, and batt leads, even gained access to the TCM and removed, and cleaned the contacts with contact cleaner, it still does it, mostly the 1st start of the day. I REALLY don't want to take it to the dealer, and get charged 175.00 for them to hook up their "proprietary" code scanner, and also last time it was in there, some knucklehead ran his orange snap on tool cart into the front fender. I also read on other forums it may be the wiring from the TCM chafing on the parking brake actuator, checked that too ! mIs this just a TCM going bad? Any Ideas ????