Question about 2004 Lexus SC 430

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Reversed polarity while jumping lexus sc430..HELP!

Cross jumped it, called dealership, replaced the 120A fuse, re-assembled the whole thing and now when i try to jump it again, there is nothing. No interior lights, beeping..the red security light near the mirror control does not flash. There is no electrical response in the car. Please tell me i didnt fry the ecu!!

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  • yadayada
    yadayada May 11, 2010

    The ECU would not cause all this, you have fried power fuse.

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Its very possable the ecu is damaged, but you will need to check all the fuses and or fuseable links

Posted on Apr 17, 2009

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