Hella s20 issue is, it keeps crashing. I have done all the reset procedures hella ask me to do but still same issue. Make sure sort that with them. Personally Launch X431 (PAD VII / PAD IX) because one of the best all-round diagnostic platforms today, strong tapology mapping, excellent coverage or Hella s20 because it has excellent wiring diagrams and repair information, Very strong for difficult European faults, hsg data. I am still stock between hsg and all data hoping Robert can help advice on that am bad with reading diagrams But the game not one tool does it all

Steering module fail to communicate, so took Steering off found the module unplugged

Found Fault but wasn't the fix as cluster was corrupted after a mileage correction

@Robert Shervill well my next plan before the live session was to strip front bumper, under tray and check for grounds, but would gone the long route, having auto data and able to read wiring diagrams makes the less and to the point

Sprinter 2021 fsb4 no crank, no comms to tcm, Oscar online tried and 3 others. Car off road for 3 months. Customer said car went dead after mileage correction

Got ecu and tcm back