"I CAN'T BACK UP!" Lexus No Reverse (Part 1)

This 2003 Lexus LS430 has a MAJOR transmission problem at 180k miles. Owner says he has NO REVERSE or neutral...the car always wants to go FORWARD! Crazy! Let's diagnose the issue, and see how expensive this repair will be... THINKTOOL PROS: https://www.amazon.com/dp/B08XXWHQVJ?ref=exp_pinehollowautodiagnostics_dp_vv_d Enjoy! Ivan