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I had a right turn signal / brake light that didn't want to work all the time, replaced the bulb and it worked for a day or so, then went back to inop. I finally took the light assembly off and used dental tools to scrape all the old hardened up dielectric grease out of the bulb sockets and reinstalled the bulbs. Worked fine ever since. Your multifunction switch is bad....all the power runs through the emergency flasher switch....to test turn ignition to on position then turn right or left blinker on....wedge a toothpick on either side of emergency flasher switch on the steering column.....this should make the connection and the blinker should work....If not ...then wiggle the emergency flasher switch and have someone watch to see if blinker or brake lights operate......the multifunction switch is not cheap...about $200.00....have someone who knows what they are doing install it....the multifunction switch is on the left of the steering column(originally known as the blinker lever)and operates cruise control and wipers and high beams ......
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What causes the tail lights not to work on a 1995 Chevy Tahoe when the turn signal and brake lights do work?
either dimmer switch or blown fuse If you are saying that the tail brake lights are working but the third brake light is not....It may be a defective turn signal switch in the steering column.
How does activating the turn signal test the brake light bulb on a vehicle?
In many cases, the brake light and the turn signal use the same bulb.
What would cause both the turn signal and brake light fuses to blow on a 2001 Ford Escape?
short circuits in the turn signal and brake light circuits
Which bulb is the turn signal in the rear tail light assembly?
the bulb with two elements in it is the turn signal and brake light bulb
Why does my signal light keeps clicking after signal is turned off on '99 Chevy Tahoe?
broken turn signal switch assemblyreplace it
Why 99 Tahoe cruise control don't work?
check the third light and brake lights, check the fuses, if all are ok then change the multi- fuction switch aka turn signal switch.
2001 Ranger and the Right Rear turn signal is out though the signal light is also the brake light and the brake light works?
Turn Signal Light Doesn't Work, but the Brake Light DoesMost vehicles use a single lamp [bulb] for the tail light, brake light, and turn signal functions.That lamp usually has two filaments: one serves both the tail light and brake light functions while the second filament serves the turn signal function.You description of the issue sounds like the turn signal filament is burned out, while the other filament is not.Another, but less probable cause could be that the conductor [wire] supplying electrical power to the right turn signal filament has either been cut, or corrosion has built up within one of the wiring harness connectors somewhere in that circuit. Corrosion acts to cut off the flow of electricity.
Which fuse do you change for the right side rear brake and turn signal light on a 1984 GM Van?
If only the right rear brake/signal light is effected it is not the fuse. Inspect the right rear brake/signal bulb, socket and wiring.
Where is a brake light switch on a Nissan?
The brake light switch on a Nissan is located just behind the brake pedal. It sends a signal to the brake lights when the pedal is pressed to turn them on.
Brake lights work but when turn signal is on both brake lights go out?
Check and make sure you have the correct bulb. The turn signal/brake light is a dual element bulb and if you have a single element it does not work properly.
How does the wiring run for a back right turn signal on a Plymouth voyager 1992?
the turn signal switch sends current to the turn signal flasher. it then goes to the bulb. The turn signal switch will turn on the turn signal and when the brake is applied it cancels out the brake light as it is a duel element bulb. 1 element is for brake and turn and the other is for parking lights. you can not have a blinker and a constant feed to the same element of the bulb at the same time.
Why does the Third brake light blink when turn signal is in use?
You probably have a turn signal bulb with two filaments one for the turn signal and one for the brake light. If the ground connection is bad on the turn signal circuit then the current would need to find another path to ground. The only other one available is through the brake light filament to the ground on the center brake light. Try removing the taillight assemblies from the vehicle look for what is probably a black wire screwed to the body or a circuit connection and either tighten the screws a bit or clean the connections.
