My brake lights don't work on my tail lights,window light works
Brake lights on tail lights don't work. Checked power and have no power to them. Checked fuse box fuses are ok. Have a problem with the 4 ways not working also. Is there a connection between then? Is there a switch or harness I in back of the steering wheel I need to replace?
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The turn signals and brake lights use the same circuit and filament in the bulbs. The tail lights are on the other circuit which comes from the headlight switch. Do you have power on the tail light fuse ?
You don't really need a diagram, it's simple. If you open both tail light boxes in the trunk you will see at the connector on the bottom a yellow wire in the first position. That goes to the brake bulb. If both tail lights do not work, make sure you are getting power to the driver side light first, if it is not getting power, the passenger side will not work either, they are in line with each other. If it is only the passenger side not working, the bridging wire could be bad.. try jumping it. Also, make sure you are getting power inside the tail light bulb holder. The metal connections can come loose. If there is no power to the driver side tail light it could be the bulb failure relay, that is the round red relay in the rear left side of the fuse box behind the ash tray/ cigarette lighter below the radio in front of the shifter. You should be getting power to the third brake light in the rear window...that is a different circuit and will not be affected. Try changing out the bulb failure relay, it supplies the power to the tail lights.
Is the top center light working (the light at the window)?? If not, check your brake light switch at the brake pedal. It may be damaged or needs adjustment. If the center light is still working, you will need to have the ground and leads checked at the brake lights. Hopefully this helps
sounds like ground problem- remove tail lights and look for wires going to body -remove screww clean grounding area and replace- both sides. You did not say whether the lights work when car is off? With car off and brake pedal pushed is there any brake lights ? If not procede with above.