No brake lights! Crap!

[Skizza]

My brake lights were working fine the other day. Got to the WFC (which rocked!) today and the guy behind me says, "Uh, hey man you don't have any brake lights." So I checked the switch and it's good. even when I depress the switch manually it still doesn't work! It's my daily driver and I'm out of ideas. amnit:

 

[ryan218]

uhggg....check you fuse... and the bulbs

 

[bobbyd]

yea check your fuse thats more than likely going to be the cause i think its #5

 

[Skizza]

Oh yeah, fuses and bulbs are good. Sorry forgot to mention that.

 

[HISSIN50]

How do you know the switch is good? Do you have voltage going in and leaving when the switch is closed?

If so, I'd go to the lights and test for voltage coming in.

Good luck.

 

[93 LX]

does the 3rd brake light work? Check the hazzards. If they dont work then you have a fuze issue or fuse block issue. If the hazzards work then the fuze is OK and you have a switch issue.

Allen

 

[Foxfan88]

replace the switch, they are cheap and it will narrow it down, might even fix it

 

[Skizza]

fuse #5 is good, no power to brake switch, no hazards.

 

[joncash]

Check the plug to the switch itself, that's what caused the same problem w/ mine. Here's a pic:
http://rjminjectiontech.com/images/brake-switch-connector.jpg

You can buy it from www.fordfuelinjection.com if need be. I just found that recently and didn't know about it at the time I had the problem, so I to repaired mine by using spade connectors crimped onto the wires and it worked fine.

 

[Skizza]

If I'm not getting power to the plug does that indicate the plug is bad?

 

[joncash]

Magic 8-ball says, "Signs point to yes" .
There's a good chance it is. Check the plastic part of the plug for signs of melting, and inspect the wires going into it. Make sure to attach a couple of paper clips to the probes on your multimeter to be certain that you're getting down to the contacts inside the plug.

I guess your third brake light wasn't working, either?

 

[Skizza]

That's correct. no 3rd brake. okay, so the switch could stop the hazards?

 

[ryan218]

That's correct. no 3rd brake. okay, so the switch could stop the hazards?

i belive so.....

i have hazards....but no brake lights? could my problem be the plug as well? i replaced the switch...

sorry to hijack

 

[Skizza]

There is no power going to the wires to the plug.

 

[joncash]

There is no power going to the wires to the plug.

Now work your way up the chain, check to see if there is power going into the switch, then see if there's power going out.

 

[HISSIN50]

The BOO will not interfere with hazards. If you have neither BOO nor hazard function, and there's power to and from the fuse, the issue is likely to be found in the wiring shortly after it leaves the 'output' of the fuse (before it branches off).

Good luck.