2003 Ford Mustang Logo
Posted on Apr 07, 2011
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Have a 03 mustang and brake light switch keeps going out its happened 3-4 times within months they keep switching it for nothing but why does it go out over and over, it went out again the other day again

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fordexpert

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  • Ford Master 5,692 Answers
  • Posted on Apr 08, 2011
fordexpert
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Joined: Apr 20, 2009
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There is a switch under the dash for the Brakes. If this is the part they are replacing it can be due to physical damage caused by shoes hitting it. If you can check the repair bill find out if the switch is broken or burned out each time it was replaced.

If the switch is burning up, you need to trace the Brake wiring to the 3 fixtures. The high fixture and both taillights. Your problem would be bad light sockets or a bad wire to the brake. You are just operating about 3 lightbulbs, which at best is maybe 3 Amps. But if the power is grounding through a bad wire or bad socket, it will draw as much as it takes to melt the connection.

Don't know how important it is to you to know if your feet or someone else's feet are hitting the underdash switches. You could put ATV blue on the switch and it would rub off on the shoes hitting the switch. But it could make a mess on a carpet or start a War.

I hope you find my solution very helpful.

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