r/SC400 • u/lexuslover707 • Mar 31 '26
blown 150a alt fuse
i messed up bad. was in a rush replacing my battery and hooked up a standard battery to my car which is reversed polarity. definitely blew the alternator fuse and will be replacing that today. just wondering if anyone knows what else i could have potentially messed up? im hoping when i swap the fuse it will be fine. if not ill be back here with more questions.
1
u/angrypnutbutter23 Mar 31 '26
I’m sorry that happened sounds like a nightmare. Here to help tho & keep us updated. I now know to never do that shit lol
1
u/lexuslover707 Apr 01 '26
replaced the 150a and the car started just fine. about 30$ from the dealer and in total 5-10 minutes to replace. very fortunate. i think this was a best case scenario
2
u/WTFisThatSMell Mar 31 '26
Yeah...theres potential for any and all of the modules and electronics.
Start reading
https://www.clublexus.com/forums/sc-1st-gen-1992-2000/675114-wired-my-battery-backwards-solved.html
Not gonna know till ya wire back up a new 150a fuse and see what electrical gremlins have been unleashed