Reverse light work but brake light and rear turn signal doesnt

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

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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

No relays-seems to be a disease spreed on the internet

& no one has any idea what a relay is (it is a switch)



Brakes lights have a switch behind the brake pedal arm



You can have a flasher that may look like a relay, for the

turn signals



That will be under the hood in the power distribution or fuse box,

in plain site



Your best to make sure ALL & every lamp on the vehicle is good,

not burnt out & go from there,never had a failed flasher from 1962 thru now (52 years)

Since those are different circuits, it sounds like a break in the wiring harness somewhere.

have you checked the relays under the hood

check all fuses using a test light or volt meter if they are all good test for voltage at brake light connection if you have voltage in and out of switch test for voltage at rear light sockets with someone holding foot on brakes if voltage is present replace bulb or socket if no voltage is present a wire between switch and socket is broke . but that is very rare.a fuse is usually the problem dont just visually inspect them

Sounds like you have 'ground' issues. Apply the brakes using a broom stick or more apropriate tool so that the brake lights are activated. Then go to the brake light that is not bright enough. using a test-light with a sharp pointed probe, poke the ground wire close to the bulb (usually a black wire) make sure the test light is attached to a grounded bolt. if the brake light gets brighter with ground added, you need a new ground wire. Splice it in to the existing wire & attach it to a bolt. Lights should work better with proper ground. (each bulb has a positive post & neg. post, don't add ground to the side with power coming through it from Battery (+)(red light on test light) - probe wires FIRST with test light to find (+) POS. Hot wire, and leave that one alone.

{: ) Looks like your lightings got haywired. Have you had vehicle repairs recently? Anyway, it seems that you have poor grounding connections for the affected lightings. Some circuits share common ground, and ground terminals are strategically distributed on the vehicle. If these grounds don't have good contact with the body, chassis, or engine ground, circuit functions are badly affected. Thats why these ground points should be inspected and kept clean and tight, maintain that good wire and terminal contacts.
We can start with G100 located at the Left Front of the Engine Compartment on the left front body mount. See diagram below:


Check out also G401 which is located in the chassis harness, mounted to the left rear Body mount. This ground point is shared by the rear lamps like the brakes, reverse, and rear signal lamps.
If possible check also other ground points that you may visually come across while on your search. Be sure also that fuses are all inspected good.
I hope we get lucky in finding and fixing a certain lamp function, if not all. Goodluck.

check the rear lower bulbs, if good nore than likely brake lamp switrch on brake pedal, 3rd lamp rns of separate circuit

check the wiring to the rear sockets, including grounds then work your way forward, check the brake light switch then the signal light switch which i figure is bad but no sense replacing till you know everything else is good

The ford explorer sport track. Will have a short either at the plug of the multi-function switch or 6 inches down where the column bends the wires during tilt.