Make sure the bulbs are inserted correctly, if o/k look for wiring issues. A common cause is a recent trailer harness installation or repair.
This site will show you exactly where the connection is and what you will need. http://www.etrailer.com/faq-cbc.aspx
The illumination of the dash during the daytime is at full brightness, normal. When the head lamps and such are turned on the brightness of the dash illumination is overridden by the dimmer. Turn the dimmer up. Usually rotation of the headlight knob will do the trick. Now if you have an electronic dimmer then it may have failed and will require replacement. Obviously the illumination works so the issue is the night time configuration of the lighting through the dimmer.
go to autozone.com,enter vehicle info.look up brake master cylinder,then to right of screen,click on repair guide and it will show and tell you how.
The Pat Sajak Show - 1989 1989-09-09 was released on: USA: 9 September 1989
The Pat Sajak Show - 1989 1989-12-25 was released on: USA: 25 December 1989
The Robert Guillaume Show - 1989 was released on: USA: 5 April 1989
The cast of The Shirley Show - 1989 includes: Geoffrey Giuliano as Himself (1989) Pamela Munro as Herself (1989)
bad sending unit in tank.
The Shirley Show - 1989 is rated/received certificates of: Canada:E
Julie Brown The Show - 1989 TV was released on: USA: 4 September 1989
check wiring, check bulbs, check fuse, check brake light switch,
It's been awhile but if I remember correctly, the reservoir should be on the right side when standing towards the vehicle. It will have a black cap that will have 2 little prongs on each side, it will just come off. It will have a blck piece underneath that protects for contaminates. Take it out and por the brake fluid in. It will show a full level at the side. Make sure you use "Dot 3" brake fluid.