I checked the bulbs-good, checked the fuse-good, checked the brake light switch-appears good. The tail lights, blinkers, headlights all work. Any ideas?

 

Relay(if there even is one)?

 

Mine was a poor connection in the bulb holders, gave me fits, I've got jumpseats in the way.

Did you remove the fuse & look at it? (mine looked good in the fuse panel with flashlight, but was blown.)

Did you check for 12v @ bulb socket?

luck,greg

 

Removed cruise control switch and tested it-good, put it back on and brake lights are working. Hmmmm

 

order a new brake light switch and keep a spare in the truck. if it quits, you will be stuck.

Also, you can test the lights by putting jumper wires from your defrost onto the third brake light. The traces are all on your rear window. This will also get you out of park if you are stuck.