brake lights not working but third light is

This is a quick video I made to help people with their brake light problem this video will work for any car the has combined brake light and. If the third brake light works on these cars but the brake lights do not the factory service manual had a diagnostic guide that suggests checking the wiring switches and fuses.

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When the brake lights will not come on the first thing to check is the third-brake light.

. The normal rear red lights not sure what you call it works just fine. Why does my tail light work but not my brake light. Emergency flashers have a socket or lamp issue.

Check for bad electrical ground which may be a result of corroded or damaged wires. Yes there is a fuse. If you question that at all confirm the back up lights work.

It cant be ground if other tail lamps are working because they all share the same ground. You need to check the sockets closely to see if it is discolored corroded or distorted. Brake lights stopped working but third light works fine.

My friend noticed last night that my rear brake lights were not working only the third one at the upper part of the rear window. Blown out light bulbs are the most common reason for why the brake lights not working but the tail lights are. Bad Brake Light Switch.

2 How to test the third brake light. There could also be a circuit short somewhere that blew all the lights if the wrong fuse is installed. Your owners manual or the fuse box may indicate which fuse controls the third brake light.

When your brake lights are not working a faulty brake switch is a common cause of the problem. A quick test is to try the emergency-flashers on vehicles that use the brake lights as flashers. If it too is not working the brake-light switch a bad fuse or an unplugged harness is likely.

11 Burned Out Bulb. Posted on Aug 26 2009. Yesterday I notices that my cruise control was no longer working which I assumed to be a fuse.

When I checked it it was fine. So the only other thing that I can see that would affect both side lights and not the 3rd is ground location. It looks like if that fuse isburned out that would still let the third brake light work.

The sockets and connectors could be the reason your brake lights stop working but the third light is still working. So that leaves either burned-out bulbs or an open circuit in the wiring. Heres why brake lights not working but third light is.

They checked the fuses inside the car and the fuses and relays under the hood they all work. Third Brake Lights are appropriate for brake lights to caution other motorists to the benefit of your safety at night and during inclement weather. Locate the third brake light bulb.

If you look at pic 4 specifically I highlighted the wires lights and a splice. If you have or can borrow a multi-meter you can take out the bulb and use the probes to touch the contacts while someone steps on the brake pedal to. Turn-Signal Switch gone bad.

These cars use a 2357 light bulb 577 for wagons for the third brake light and 1-3 volts will not light it in most cases and if it did it would be so dim it would be considered a malfunction. They both diagnosed that there is no power coming to the rear brake lights all the other bulbs work except the brake lights turn signals tail lights and back up lights work. Make sure the fuse is replaced with a fuse of the same size and number of amps.

Diagnose and repair no brake lights 3rd brake light works - YouTube. The bulbs are fine all of the fuses are fine. Bad Brake Light Switch.

On vehicles where the flashers are separate from the brake lights this will not apply. I attached the wiring diagram so you can see what Im talking about. You should run some tests to make sure if the bulbs are the main culprit or not and to do that you will need to remove the tail light cover.

When braking high-bright red light. One of the main reasons why you might see your brake lights working while your tail lights dont is because the bulbs installed in the tail light were faulty. If the fuse is good it will light up.

After releasing the brake there is no light. If you look at pic 2 it shows that ground for both sides and a different one for the third brake light. 14 Wires with Short Circuit.

Remove the bulb with a screwdriver. 15 One brake light is not working but the bulb is good. Well get into the details of what couldve gone wrong with each of these three issues how you can identify the.

If ground is lost but if that was the case none of the lights would work. Remove the screws from the bulb lens which you can access through the trunk or see your vehicle repair manual to get the exact location. This could be the possible issue especially when the brake light switch is functional.

The electrical ground is one of the things you should also check if the taillights are working and brake lights are not. 3 How to fix and replace the third brake light. This made me think that the brake switch may be out so I checked that out.

Otherwise if everything else youre telling me is exactly how it is then youre looking at bad light sockets or bulbs or connector somewhere or wiring. 13 Bad Fuse Box. Once you have identified the fuse that controls the taillight you can use the fuse tester to see if it is up and running.

Now it cant be a fuse because the third brake light gets power from the same source. If it does not light then you will have to buy a replacement. Check fuse 34.

When you press your brake pedal a tiny switch is put at the brake pedal to notify the control unit that the pedal has been depressed which then sends electricity to the brake lights. The possible reasons for brake lights not working but tail lights are. I have had two mobile mechanics from craigslist look at the problem in the last few days.

Especially if your brake lights are not working but the third brake light is it is a big chance that it is just two blown bulbs. Appears to be fine but in the process I found out that both brake lights are now out. Hold down the brakes and use a voltmeter to lightly touch the terminals to check the voltage.

On chrysler products the third brake light is run independant of the body control module try checking the fuses that run the brake lights and see if any are faulty if not check you have voltage at the switch and a signal getting to the lights. 99 JEEP BRAKE LIGHT WONT WORKTHIRD BRAKE LIGHT WORKS. 1 Why is my third brake light not working.

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