Blowing ignition fuse

Tiny
TERRI ROBERTS
  • MEMBER
  • 2004 HYUNDAI ELANTRA
  • 4 CYL
  • 2WD
  • MANUAL
  • 120 MILES
It will be running fine then I stop and turn off car it won't start again, radio stops working too, everything else still works. Do you think connecting and disconnecting battery cables could be doing it? My brake lights don't turn off so I have to do that until I can fix that.
Saturday, March 20th, 2021 AT 7:48 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 34,093 POSTS
Absolutely. Fuses often blow for no reason when reconnecting the battery due to the momentary current surge from memory circuits charging up.

There's a good chance your brake light switch is just loose or out of adjustment. It only takes a minute to check it. That would be better than driving with your brake lights on all the time. The switch is under the steering column, and the white button in the photo gets pushed in by the brake pedal's arm to turn it off. Two nuts on the threaded shaft hold it tight and are for the adjustment.
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Saturday, March 20th, 2021 AT 8:17 PM

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