Mercury cougar 1995 push hazard light switch lights work

Still no brake lights would indicate a bad wire. Check for power at the brake switch, repair the wire, they usually break close to the plug. This will get back the lights and shifter. The no start would be the neutral safety switch on the transmission. Usually the switch is under the shifter cable. Some have a separate switch.

i would check right at the peddle there will be a two wire switch would recommend to get it working proper but if not follow paddle leaver up to switch and unplug one wire and light will never come on again

Replace the bulb first, if it still does this replace the socket and make sure the ground for the light is clean and tight and that the connectors for the tail lights are fully clipped together.

I am unaware of what a "CO" display is.
Now with the blinkers, hazard, horn and brake lights not working that may be the multi funtion switch (blinker switch) that is located inside the column (where the blinker lever attaches).
Obviously the blinker, hazard and horn will all work off of something in the column. Brake lights, you may think a switch on the pedal.

the brake lights do work with that switch but when you have the kind of tail lights where a turn signal light shares the same bulb as a brake light, the brake light is cancelled for the turn signal by running through the multi function switch inside the column.
The third brake light does not blink so its not on that same circuit.

You may have a bad signal switch..Your brake lights run through the signal switch..Try hitting the brakes and move the switch around and see if your brake lights come on intermittently..

IN THE BREAK PEDAL IT HAS A SWITH BUTTON THAT WHEN YOU PUSH THE PEDAL TO BRAKE IT MAKES THAT THAT BRAKE LIGHTS TURN ON AND WHEN YOU RELEASE THE PEDAL TURN THE BRAKE LIGHTS OF THESE SWITCH HAS 2 CABLES YOU NEED TO CHANGE IT IN A YUNKYARD YOU CANT FIND IT CHEP IF YOU DONT FIND A MERCURY COUGAR SEARCH A THUNDERBIRD OR A GRAND MARQUIS OR LINCOLN THEY HAVE THE SAME TYPE OF PARTS AND ITS EASY TO REMOVE IT YOU CAN DO IT YOUR SELF

dimmer control turned all the way will switch on interior lights, if not may want to wd40 switches that the doors engage when shut. These are small usually push button types, they do break too and are adjustable

this sounds like you should be keeping up with checking fuses with a test light on both sides of the fuse,the inter lock solenoid on the shift cable is not powering up,check your brake switch.

Try this easy check. Press the hazard switch on and off about 20-30 times and see is it all starts working again. The contacs in the switch assembly get dirty and this will help clean them up from non use. Worth a try.

This is a classic example of turn signal switch failure. On GM vehicles with a multi-function turn signal switch and combination stop/turn/tail lights (all rear lights are behind red colored lenses except for back-up lights) The brake light power is routed through the turn signal switch. This makes it possible for the right rear light to function as a stop light while the left rear turn signal flashes, and vice-versa. When the contacts fail to remain constant the brake lights, and turn signals can become intermittent. The proof that the brake light switch is functioning correctly is that the high center (cyclops) brake light functions properly. Wiring integrity is verified if you can prove that turn signals operate, but that can still be intermittent with this complaint, BUT if you use your hazard switch to turn on all the signals at once, you can verify wiring integrity. This is because the turn signal, and the brake light use the same circuit, and bulb filament in the rear lighting assembly. If any Hazard lights fail to function, check bulbs first, then retest. If all Hazrd light flash correctly and reliably, bulbs, sockets, and wiring have proven integrity, and the turn signal switch is the remaining component in the system which needs to be tested. Unfortunately, this switch requires disassembly of the steering column for service, testing or replacement. If you have never disassembled, and successfully reassembled a GM tilt steering column, I would reccommend professional assistance.