I have a 1992 LS400, the alternator had gone bad. I replaced it, the dash lights come but the car won't crank at all. I checked the cables, fuses, fusible links and even put ina different ecu and battery same thing. I can only conclude it is the anti theft (factory) or starter. I really hope it is not the alternator as it is labor intensive. The car will have to be towed to the mechanic or if the person is mobile that would be great. Please help...being paid of course