Hazard lights not turning off

Tiny
FRANK ALLEN
  • MEMBER
  • 2007 SUBARU
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
I have a friend that owns this car. As of yesterday the hazard lights came on and will not shut off. This morning I tried to jump it battery drained out, probably from the hazards not shutting off. What could be the problem?
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Wednesday, January 25th, 2017 AT 4:56 AM

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Tiny
STEVE W.
  • EXPERT
Which model and engine? With those we can look up part locations and wiring to see if there are easy tests. Be very careful jumping a drained out battery in a modern vehicle, you can cause a lot of problems. Better to attach a charger to the battery with the negative terminal unhooked and let it charge.

The issue could be a bad switch, bad hazard/turn module, shorted wiring between them.
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Wednesday, January 25th, 2017 AT 7:07 AM
Tiny
STEVE W.
  • EXPERT
Okay, found your other post. From the wiring it looks like the switch is a simple pull to ground unit. It also connects to the BCM (as part of the anti-theft display I think). It receives power from fuse eleven.
The turn/hazard module is in the left side of the dash. It has a multi-pin connector. Pin eight is a violet wire with a black stripe. That is the switch wire.
If you have a test light you could connect the light to battery positive, unplug the connector and gently probe that wire. If the light doesn't come on the turn/hazard module is faulty. If the light does turn on you will need to remove the hazard switch and its connector and see if the switch is bad or if it is the body module turning them on.
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
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Wednesday, January 25th, 2017 AT 7:34 AM

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