1995 Chevrolet Lumina BERAKLIGHT PRBLM.

Check fuse no.23 15amp

I haven't looked at your wiring yet, but usually, your lower brake lites are wired through the multifunction switch. The high-mount brake lite isn't wired that way.

I'd have to check voltage and ground for lower brake lites.

Hi Raz, I didn't see you. In my diagram, the high-mount and lower brake lites work off the same fuse. Right now, I'm thinking turn signal switch has a problem? Could be wiring issue between the front and back?

The lower brake and turn use the same bulb filament, just not at the same time. Lower left, yellow wire is voltage for brake. Ground is black. Lower right, dark green wire is voltage for brake lite.

THANKS FOR RESPONDING ,ADL, HOWEVER CHECKED 15 AMP FUSE FIRST & IT'S GOOD NOT BLOWN,I REPLACED THE COMPUTER BOUT A MTH. AGO DIDN'T CHECK TO SEE IF TAIL BRAKE LIGHTS WORKED .NOTICED WHEN I SWAPPED OUT COMPUTER HORN STOPPED WORKING TOO.THINK COMPUTER MAY BE THE CULPRIT? NEW BULBS & BRAKE SWITCH INSTL. WHATS THE SWITCH ABOVE THE BRAKE SWITCH FOR ?

It could be due to bad or corroded connections. You should check your fuse for loose connections.

The computer doesn't have anything to do with the lower brake lites or horn. Could be issue the wiring in steering column or multifunction switch.

THANKS AGAIN JDL FOR INFO ON COMPUTER ,YOU WERE RIGHT THE M SWITCH OR MULTI SWITCH FOR TURN SIG. WIPER AND CRUIS CNTRL. LEVER IS THE CULPRIT CLICKED L TO RGHT. SIG AND APPLIED BRAKES AND THERE THEY WERE ON .THE BRAKE LIGHTS THAT IS ALL ( 3 )

Glad you got it going your way.