My turn signals don't work, my horn doesn't work and my air conditioner doesn't work?

1999 PLYMOUTH VOYAGER
200,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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LILLIANBROWN
  • MEMBER
  • 1 POST
My turn signals don't work, my horn doesn't work and my air conditioner doesn't work.
Apr 12, 2026 at 6:13 PM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi:

Did these all stop at the same time? If so, I suspect it would be something like a fuse, but the AC and horn /flashers are not on the same circuit.

If you haven't already, check the fuses in the power distribution box under the hood. Fuses 3, 5, and 9 are for the turn signals and horn.

If you look at pic 3 below, I highlighted the fuses in the fuse box that need to be checked. Let me know what you find.

Next is the AC. Have you checked to see if it needs to be charged? If the pressure gets too low in the system, it will prevent it from working.

Here are two links you may find helpful.

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

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

Let me know what you find. Also, let me know if the turn signals work at all. In other words, do they light but not flash.

Take care,

Joe
Apr 12, 2026 at 7:29 PM
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