Question about 1995 Chevrolet Blazer

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Rear lights dont turn on when i turn on my lights but if i push the breaks they go on. i checked the bulbs and there good. and i have 2 white wires and a brown wire and 2 green wires and a yellow wire hangging from the back, bottom of my truck. everything works and turns on is just that the rear lights dont go on when i turn on my night driving lights.

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What do you mean "wires hanging" that should be the first thing you check. fuses good?

Posted on Oct 01, 2009

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1987 dodge d150 break lights


get yourself a tester to see if you are getting power to the light socket, have someone push on the brake petal and use the tester to check for power. If no power, you have a broken wire somewhere between the rear lights and dash [fuse panel] check for corrosion in bulb socket. try to find the wire along the frame to the rear lights for any breaks in the insulation. electrical is one of the hardest problems to solve, good luck.

Mar 12, 2013 | 1987 Dodge D150

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2004 Cadillac CTS break lights


Hello! There is a relay called the BAS relay (brake assist) that controls both the top brake light and the lower lights...Since the top light works the relay is doing its job...However, the relay output is connected to several White wires that carry the same voltage to all brake lights...One of those White wires (the one that carries voltage to the lower lights is open)...There is a Joint Connector located with the BAS relay in the Left rear fuse block...One White wire coming in from the relay contact and 3 White wires leaving...#1 to the top brake light...#2 left brake light and #3 right brake light...It would appear that the junction of #2 and #3 are open inside the Junction block...Not the easiest fault to find and fix...
If you have a multimeter I'll guide you through the process...Or you can take it to a wiring specialist...Wiring Junction blocks look like hair combs (multi-tooth metal combs that push into a connecter with several wires all the same color...In this instance WHITE WIRES...When someone depresses the brake pedal +12 volts must be on all three white wires...Send a comment...Guru...saailer

Dec 11, 2011 | Cars & Trucks

1 Answer

Window break light good but actual break lights not working


sounds like you have a bad turn signal switch.

If the third brake light is working than we know the fuse is good and the switch is good. The third brake light bypasses the turn signal switch. If the rear turn signals are working than we also know that the wiring from the switch to the rear bulbs is also good. The brake lights and the turn signals are on the same bulb so the turn signal switch is what determines if the bulb gets power from the brake light switch or from the turn signal flasher. If the switch is bad usually the first thing that stops working is the brake lights.

Typically you can wiggle, jiggle, pull, push on the switch lever with you foot on the brake and get the brake lights to work. Sometimes turning the four way on and off several times will also get the brake lights to work. If this is the case than a new turn signal switch will solve you problem.

If you have any questions let me know!

Oct 11, 2011 | 1997 Chevrolet Lumina

1 Answer

My break lights do not work at all. 2000 Chevy Lumina- We dont know where to begin to trace the wires we tries tracing them from the rear and couldnt find the right wire.The center light in the window does...


i am CONFUSED? you say they dont work, then you say "when you press down on the brake that the switch for the lights causes them to go off instead of turning them on when messing around with it but couldnt figure this out"........ if NO brake lights work, then check fuse 23. . if the fuse is GOOD then check wires at the brake switch. Orange should have 12V, when brake pedal is pressed then the WHITE should have 12V and lights should be on. the center rmounted stop light (BACK WINDOW) has 2 bulbs, make sure they are good. The center light is wired differently. If the center light works but brake lights do not, the turn signal switch could be bad. I assume THE TURN SIGNALS are OK? IF the turn signals are working OK, the wiring between the turn signal switch and the brake lights is GOOD

Aug 03, 2011 | 2000 Chevrolet Lumina

2 Answers

No break lights ,tail lights on a 1999 suberban check the fuse and they are all good when i turn my lights on and put on the turn singal and press on the break they start blinking very fast when i thouch...


it sounds like a ground problem...sounds like the ground is trying to go through the bulbs to make connection....check all ground wires battery, engine and rear frame...

May 27, 2011 | 1999 GMC Suburban

1 Answer

Front turn signal does not blink when turned on. bulb lights when lights are turned on.


Have you checked the rear turn signal on the same side? Usually when one (1) turn signal stops blinking another bulb on the same side has failed. It can be rear or side lights but most of the time it is the rear light on the same side that has failed so the front light will not blink.

Also I would check to see if there was 12V when the turn signal is selected and a ground on the bulb socket. (signal off)

Does the bulb have one or 2 contacts on the base of the bulb besides the barell? If it is a 2 contact bulb (1157) then there are separate circuits for the turn and parkling lights. Follow the socket wires back to the connector and check to see if there is corrosion in the socket or the pigtail connector. All of the terminals socket and pigtail connector should be clean. Also check for signs of any breakdown in the wires especially around terminal ends.

Your dealing with a 2 wire series circuit... power and ground. It takes both to make the bulb light.

Check the ground for Zero (0) Ohms and power for 12V. One of them has to be missing and you will need to find out where the break is in the circuit.

Often the ground is provided by the turn signal selector but if the selector is bad all lights on the same side would not work. If the rear light works and the front light does not then your problem is probably very near the front light.

1. Dirty socket terminal
2. Poor pigtail connector connections
3. Broken chassis ground or power wire

Thanks for using FixYa.

Kelly



Mar 17, 2010 | 2005 Chevrolet Cobalt

2 Answers

Signal lights dont work when breaking


No,this is not normal,this normal when the emergency flashers are on,but not the turn signals.Check the bulbs(all of them)in the rear tail light assembleys.If you can not tell which bulbs are bad,replace them all.Does this vehicle have a trailer light plug?If it does,it could be in it.After the bulb replacement(look at bulbs in your hand to see if filiments are burned)replace the turn signal flasher.To find it turn key on,and left or right turn signal on,and listen,and feel for it under dash around the steering column.

Aug 23, 2009 | 1988 Jeep Comanche

1 Answer

Right read blinker/break light dont work, turn signal blinks rapidly


It's the bulb. There are two filliments in the bulb. One is for when you turn your lights on and the other is for breaking and blinker flashing. When the break filliment goes bad it causes the blinker to flash very rapidly. 100% the bulb. Change it and all will be good again. P.S. if it were a fuse none of the break lights or blinkers would work.

Apr 20, 2009 | 2005 Ford Explorer

2 Answers

No brake lights but 3rd light works all fuses are good


Sounds like a broken wire somewhere.
Since the middle brake light works I would suspect it is somewhere in the trunk or close to the back seat.
Buy or make a tester. A 12v light with a clip on one wire that you clip to a good ground on the car the other wire with a sharp point. Turn the turn signals on then poke wire to rear lights until tester lights. When tester lights you know the break is somewhere inbetween the tester and the brake lights.

Hope this helps.

Stan

Apr 16, 2009 | 1985 Buick Skylark

1 Answer

I have lost my signals and brake lights. all other lights work.Headlights, taillights, markerlights. I have replaced the "Signal Stat" in the steering column, no change. HELP


1. Check for power to the turn signal switch on the White and Yellow wires with the brake pedal depressed. If low voltage, check the stop light switch operation on the brake pedal. Check the Center High Mount stop light (CHMSL) circuit operation.

2. Check the black wires at the turn/brake sockets for a good ground.

3. If all OK, check for a bad frame ground to battery negative. 4. and dont forget to check the rear bulb

Feb 27, 2009 | 1998 Chevrolet Cavalier

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