Turn signals, hazard and brake lights work intermittently or not at all. Solutions?

Brake lights /rear hazard lights not working - Ford Truck ...

www.ford-trucks.com > ... > 1967 - 1972 F-100 & Larger F-Series Trucks
Jul 9, 2010 - After checking the brake lights I tried the emergency flashers and found that they are working in the front but not in the back. I do have rear turn ... 1995 F350 Brake Lights / Turn Signals not working
Jul 9, 2012
Turn Signals and Brake Lights Do Not Work
Mar 10, 2012
Turn Signal, Brake Lights, & Rear Hazard not working
Aug 3, 2010
Rear Turn Signals, Hazards and Brake Lights not working....
Aug 29, 200

Sometimes the housing the bulb is in has gone bad try cleaning out the prongs where the bulb goes in it that does not work replace the fixture the bulb goes in had the some thing happen to my trailblazer hope this helps

it all points to a fault with a common ground. Find earthing points

feed supply problem somewhere ?but where ? try checking the wiring loom at the rear or as its called in american "pigs tails"

I had this problem, and to be honest, it happened to the left side about a week later...it's the board that the bulbs plug into...it's a very common problem with this model. So popular that you can normally get the socket board off the shelf at a parts store! it's extremely simple to replace, and I replaced all the bulbs at the same time!

Check your fuse for the brakes, if fuse is blown replace. If not fuse go buy a package of brake light bulbs at the auto store. Then replace the bulbs.

Hope this helps

Matt

try running another ground wire

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.

The problem is the turn signal/headlight/hazard switch assembly on the steering column which the brake light wiring runs through. The part is easy to change and cost about $50 at most parts stores