grnf150

I am seriously scratching my head on this one. Any advice would be greatly appreciated.

I have a 1999 F-150 ext cab 4x4. A buddy of mine noticed that the 2 rear brake lights were not working the other night. He said that the cab light was working. I can't seem to figure out what the #$!# is the problem. It doesn't really make sense because the backup lights and the parking lights work so that rules out some of the following but I checked them anyway

1. Fuses. all were good.

2. Brake light switch. Good.

3. Light bulbs. good.

4. continuity through the light socket. good.


Thanks for any help.

jamie

ethosb

I encountered a similar problem with my 350. After several hours of metering the system and tracing the wiring harness to various locations I found the mini fuse box. Ford has gone to a secondary fuse panel (Power Distribution Box) that is located under the hood, drivers side attached to the firewall. I replaced then #3 7.5A fuse and resoolved my issues. Hope this helps.

big1

And there is the problem of not having a good ground. I'll bet you checked for positive voltage, did you check for a ground?

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