Jumped car crossed wires nothing turns on anymore?

Tiny
LIONEL CORTEZ
  • MEMBER
  • 2018 SUBARU LEGACY
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 80,000 MILES
I tried to jump the car and accidentally crossed the wires and now nothing works.

no accessories, does not turn over, nothing. The only thing that seems to work is the interior light turns on very dimly.

Any help is appreciated.
Wednesday, August 24th, 2022 AT 2:55 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,867 POSTS
Hi,

It's odd that nothing works but dim interior lights. By chance, have you checked the battery itself? It may have internally shorted. If you have a voltmeter or multimeter, see if it is producing 12+ volts.

Next, there is a main fuse in the engine compartment fuse box. It's a 125-amp SBF fuse. If you look at pic 1 below, note that power from the battery goes there first and is distributed. Check that fuse (see pic 2). When checking, make sure the fuse is good and there is power to and from it.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let me know what you find.

Take care,

Joe

See pics below.
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Wednesday, August 24th, 2022 AT 8:07 PM
Tiny
LIONEL CORTEZ
  • MEMBER
  • 2 POSTS
Thanks, it was the battery, it was shorted. Replaced it and it started right up no problem.
Was expecting the worse, but it was a 200$ lesson.
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Thursday, August 25th, 2022 AT 3:40 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,867 POSTS
Hi,

You are very welcome. I'm glad it was something simple and it's fixed.

Please feel free to come back anytime in the future if you have questions. You are always welcome here.

Take care,

Joe
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Thursday, August 25th, 2022 AT 6:51 PM

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