Thanks for the reply. I wish mine was that easy. Im in Florida so heats not a problem. But we have found they only blow under excessive loads like plugging. Straight fwd/rev it will work ok. So we have something shorting under high amperage. All the diodes test ok no load. But they are expensive to just change out with hi hopes. I don't think our customer would appreciate it.

yes, i hope i can help. its the wierdest thing. i noticed that mine was only problematic when the temp was as cold as 5 degrees celcius apx. so now i just warm the electronics every morning with a hair dryer(many jokes have been made) and i hear the points kink in when it warms and i use it all day ,living in newfoundland canada i have to warm it for about 5 months ha ha ha but it works fine and it warms.

I have A C0 code. Found the transistors bad. Changed them and they blew again shortly after. Cannot find any shorts.

Do you recall what you found when you had this issue a few YEARS back??

THANKS AGAIN a toyota guy told me to check connector CN102 but i can`t find it, i see all the other CN connectors but not cn102 can you tell me where to find it? where is the TMS
THANKS

thanks i will try these things, i discovered that if i manually closed several sets of points in the rear that the lift will start working(if handle pulled ofcourse). so when i pull the handle the signal isn`t going to the points to close. what does this mean?

need to look for shorts to frame, not voltage at contactors. to check motor with ohm meter pull one "s" cable off of a stud and one "a" cable off of a stud. check continuity at the motor studs between the two "a" studs and then between the two "s" studs. both should be very near zero.

thanks, i have 48volts going back to the controll moduels so i doubt if its a cable. is there any way to test the driver motor with just a multi meter?
why is the lift not working also? but the steering is working?
thanks

when the code CO comes up after accelerator is pushed and not at key on it can mean there is a problem with cables under battery, fuse, contactor or motor problems. unfortunately CO is the code that has the highest number of possible componet failures and the longest troubleshooting chart. good luck.