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Brake lights aren't working, checked normal culprits. Need truck for work. Any suggestions GREATLY appreciated.


Cyb3rst0rm

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Mar 13, 2019
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Location
Southern IL, USA
Vehicle Year
1995
Make / Model
Ranger XLT 4.0
Transmission
Automatic
My Ranger is a 1995 Extended Cab with the 4.0 and an Automatic. I recently noticed that my brake lights aren't working. I checked the brake pedal switch and found that the Green/red strip wire was broken. I went down the scrap yard and pulled another electrical connector off another truck and replaced the entire electrical connector on the brake pedal switch. I'm not the first person to mess with this as the old wire was covered in electrical tape. The wiring I saw was a green/red stripe (positive in?) that went out via a solid green wire into a red plastic splice-thing that went out to a green wire (out to tail lights?) and an green/orange stripe wire (out to third brake light?). From there it all goes into the firewall and disappears. I tried crossing the positive wire to the out wire as I reason this should trigger my brake lights to come on to see if the switch was the culprit but my brake lights did not come on. I replaced all the lighting related fuses (well, actually, I replaced around 80 percent of the total number of fuses inside the box for good measure. Fuses are cheap) and checked the 20 amp lighting fuse inside the relay box and it was fine. I replaced all 3 of my brake light bulbs and while I found one had a broken filament, nothing seemed highly unusual to my eyes.

The only thing (electrical) I've done to this truck is install a stereo and it had a draw tite tow package installed when I bought it.

I'm not sure what else to check. I'm in a tight spot financially right now so taking it to a mechanic is absolutely out of the question. I also need this truck up and going for work. I deliver pizza so it's only a matter of time before I get stopped and am given a ticket (and I'm one ticket away from loosing my license) so I'm kind of panicking right now. Any help or suggestions would be appreciated.
 


adsm08

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Follow the power. Bust out the old volt meter, test the power at the plug for the brake switch. If you have power there, go to the next plug. If you have power at the bulb plug, then you have a ground issue.
 

Cyb3rst0rm

New Member
Joined
Mar 13, 2019
Messages
24
Reaction score
2
Points
3
Location
Southern IL, USA
Vehicle Year
1995
Make / Model
Ranger XLT 4.0
Transmission
Automatic
Follow the power. Bust out the old volt meter, test the power at the plug for the brake switch. If you have power there, go to the next plug. If you have power at the bulb plug, then you have a ground issue.
Is there a diagrahm somewhere that shows where that wire goes to/what the correct voltages are?
 

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