Brake fuse blow when pressing the brake pedal

1997 CHEVROLET ASTRO
213,000 MILES • 4.3L • 6 CYL • 4WD • AUTOMATIC
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HANDYDOUG13
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I have a ohmmeter on the stop hazard fuse and checking for continuity. there is a short when pushing the brake pedal only when the ignition is on. The turn signals don't work either.
Nov 1, 2020 at 11:00 AM
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ASEMASTER6371
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Good afternoon,

I attached a wiring diagram for you to view. The first thing I would do is disconnect the turn signal switch connectors under the dash and see if the fuse still fails.

https://www.2carpros.com/articles/how-to-check-wiring

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

Keep me updated with the results.

Roy
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Nov 1, 2020 at 1:06 PM
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HANDYDOUG13
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Hello Roy, thank you for that information. I haven't been able to check that out yet. I did find that the left front outer turn signal bulb is burned out. Could that be possible cause? Thanks,
Doug
Nov 1, 2020 at 1:18 PM
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ASEMASTER6371
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Possible but I doubt it.

Remove the bulb and then re test and see if the fuse still fails.

Roy
Nov 1, 2020 at 1:28 PM
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HANDYDOUG13
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I have to go get some fuses. The turn signals work now though. I'll let you know what the results are.
Thank you so much!
Doug
Nov 1, 2020 at 1:42 PM
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ASEMASTER6371
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You are welcome.

Always glad to help.

Roy
Nov 1, 2020 at 1:59 PM
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HANDYDOUG13
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Thanks for your help. So far, the brake lights fuse has not blown after putting the new left front outer turn signal bulb in.
Nov 1, 2020 at 4:51 PM
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ASEMASTER6371
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Good. I would replace the bulb and socket if it is damaged

Roy
Nov 1, 2020 at 5:44 PM
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HANDYDOUG13
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Thanks, I will check it. Thank you for your help!
Doug
Nov 1, 2020 at 5:48 PM
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ASEMASTER6371
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Stay safe.

You are welcome.

Always glad to help.

Roy
Nov 2, 2020 at 3:08 AM