Flashing hazard lights would not turn off

Tiny
JHANOVER63
  • MEMBER
  • 2007 BUICK TERRAZA
  • 2.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
The hazard lights started to flash and wouldn't shut off. They flashed until the battery ran down.
Tuesday, June 15th, 2021 AT 6:40 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

I reviewed the wiring schematic and attached them below. Either we have a short to ground, via the tan wire I highlighted, the switch itself has failed and is shorted to ground, or there is an internal fault in the body control module.

What I would suggest is to do would be to disconnect the hazard switch to see if they turn off. If they do, chances are the switch itself is bad.

Here is a link that explains how to check wiring. I thought it may be helpful to you.

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

Let me know what you find or if you have other questions.

Take care,

Joe

See pics below.

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Wednesday, June 16th, 2021 AT 9:53 PM

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