cables reversed

[kts39]

I had a gent give me a 1990 Celica GT recently, this could be a good thing or a curse, he told me he tried to jump start the car but he reversed the jumper + and neg cables, other than blowing the 100 amp main fuse what other damage could have been done. Thanks kts

[drawsemaj]

first how on earth did he pull that off? those cables are idiot proff they only reach the terminals if its i the right direction

and you could have fried the ecu... that would be very bad unless you have a junk yard near you