Question about ACDelco D7065C Brake Light Relay 12177236, 15328864, D1533F

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No brake lights

No electricity getting to brake light switch

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2002 jeep liberty brake lights don't work. About 5 days ago the rear lights would not turn off replaced tail light switch problem was corrected ., but now the brake lights are not coming on , was...


The replacements switch could be defective (not un common).
Your brake light switch (located under the break pedal) could also be the issue. Have you made sure the bulbs were good. It is uncommon for both to go out at the same time but it is possible (especially if you were recently playing with amny electrical, a short was possible.
It would seem the problem is related to your previous somehow. You most likely have some faulty wiring/electrical component causing problems in areas around it. Take it to an autozone for a free diagnostic if the breake light swtich (under pedal) isnt the issue.
(Excerpt from howstuffworks . com)
So you've tested the brake light fuse and the brake light bulbs and there's still no juice flowing to those locations. In this situation, you'll want to check the brake light switch. It's a mechanism that connects and completes the brake light's circuit in the car's electrical system. It's a very basic two-wire switch: One wire controls the power going in while the other wire controls the power going out.
The switch is located near the brake pedal and it's probably marked. Once more, get out your test light and ground it as you did when you checked the fuses. Place the sensor on just one of the two wires and hold the brake pedal down as you do so. Then test the other wire. If power is connected and the switch is working properly, the test bulbs will illuminate. If it doesn't light up, the brake light switch is faulty and will need to be replaced. If your switch is a more complicated setup, consisting of more than two wires, use the owner's manual to locate the primary "power in" and "power out" wires and test those.
If you do all of these things and still can't get your brake lights to work, your car may have some different systems that need to be checked. For instance, some cars' brake lights and turn indicators are wired together, which means you'll need to inspect that combined system and its fuses. Some Japanese cars feature a dedicated "brake light control module," while cars with an integrated computer system usually offer onboard diagnostic scans to pinpoint any problems.

Jan 23, 2015 | 2002 Jeep Liberty

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Checking the Brake Light Switch: A control switch is used to connect the brake...


Checking the Brake Light Switch: A control switch is used to connect the brake light electrical circuit. This switch is located near the brake pedal lever. Basic switches have just two wires, power in and power out to the turn signal switch. Use a test light that is grounded and with the key in the "on" position test for power at one side (wire) of the switch, then press the brake pedal while testing the opposite side (wire). It should illuminate the test light, if electrical power is connected through the switch go to the next step. If no power is detected through the switch the brake light switch has failed and replacement is required. If your car is equipped with more than two wires integrated into the brake light switch a car repair manual is needed to locate the proper brake light circuit wiring.

on Dec 18, 2009 | Honda Civic Cars & Trucks

1 Answer

I have a 91 ford f150 and the brake lights wont work and the rear right blinker is dim. Can you help me?


Check System Fuse - A fuse is used to protect the brake light circuit from amperage overload. If the fuse has failed it will not allow the electrical current to continue to the brake lights. To check the fuse, first locate the brake light system fuse in the fuse panel which is either under the dash or under the hood in the power distribution center. Connect the test light to a ground like an engine or dash bracket and turn the ignition key to the "on" position. Using the test light probe both sides of the fuse. If the test light illuminates on both sides the fuse is okay continue onto the next step. If one side of the fuse illuminates the fuse has failed and needs to be replaced. If the fuse fails as soon as it is replaced or when you apply the brake pedal the brake light electrical circuit is shorted to ground. Rarely a system short can occur, a car repair manual is needed to find the wiring schematic for the brake light circuit. Once the brake light wiring has been located inspect and repair as needed.

Check Brake Light Bulbs - All cars have three brake light bulbs that create the brake light illumination affect. If all of these brake light bulbs fail no brake light operation will occur. I know what you're thinking, you might say all three brake lights at once? But in reality one brake light went out at a time and you did not notice. People only tend to notice something when they almost run into the back of your car to help persuade them to inform you the brake lights aren't working. Remove any of the brake light bulbs to confirm the bulb is okay or burned. After the bulb has been removed inspect the filament and replace if failed. If the brake light bulbs are okay continue to the next step.

Checking the Brake Light Switch - A control switch is used to connect the brake light electrical circuit. This switch is located near the brake pedal lever. Basic switches have just two wires, power in and power out to the turn signal switch. Use a test light that is grounded and with the key in the "on" position test for power at one side (wire) of the switch, then press the brake pedal while testing the opposite side (wire). It should illuminate the test light, if electrical power is connected through the switch go to the next step. If no power is detected through the switch the brake light switch has failed and replacement is required. If your car is equipped with more than two wires integrated into the brake light switch a car repair manual is needed to locate the proper brake light circuit wiring.

Nov 05, 2011 | 1991 Ford F150

1 Answer

Read code P0571 definition Brake swith A circut. Probable cause open or short circuit condition, poor electrical connection or faulty brake switch per auto zone


CODE PO571 CHECK TO SEE IF POWER AT BRAKE LIGHT SWITCH WIRE ELECTRICAL CONNECTOR IF YES BRAKE LIGHT SWITCH BAD.IF NO POWER GOING TO BRAKE LIGHT SWITCH YOU HAVE BROKE OPEN WIRE TO SWITCH.BLOWN FUSE ,PCM FAULT.

Mar 11, 2011 | 2006 Hyundai Sonata

2 Answers

1988 buick regal brake light switch brake lights don't work


ck fuzes brake lite switch shood have power on one side mash brakes shood be other side

Feb 04, 2011 | 1988 Buick Regal

1 Answer

My problem is on the brake light switch everithing started when i replaced brackes booster didn't put the retainer clip back week later i start to have problems can't get it off parking is an automatic 97...


I think that it requires a new retainer on the brake pedal stud.

--- Brake Light Switch Removal & Installation To Remove:
  1. Disconnect the negative battery cable.
  2. Disable the air bag system. Refer to Chassis Electrical.
  3. Use snap ring pliers to remove the pushrod retainer from the stud on the brake pedal.
  4. Unsnap the brake light switch from the pushrod.
  5. Disconnect the electrical connector from the brake light switch.
To Install:
  1. Connect the electrical connector to the brake light switch.
  2. Snap the brake light switch on the pushrod.
  3. Install a new retainer on the brake pedal stud. Use a 7/16 in (11 mm) socket to push the retainer on the stud.
  4. Connect the negative battery cable.
  5. Enable the air bag system. Refer to Chassis Electrical.

Oct 08, 2010 | 1997 GMC Sierra

3 Answers

My break lights dont work , all other lights work thank you


Your brake light switch (aka stoplight switch) is shot. It is located on the upper brake pedal, with an electric plug in. $10 part.

Jun 28, 2010 | 1999 Dodge Ram

2 Answers

Fuse good told that brake electric wire bad. what


There is a "Switch" that is pressed by your Breaking foot lever of most vehicles. Grab a flashlight and look for it, Turn the key on and see if you get any voltage to this switch. If you do get voltage to this switch, have someone watch the break lights while you jump the 2 wires. If you have power to it and jump it but still no lights, You must replace the faulty wiring.

Jun 04, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

1992 Buick Lasabre Right Brake Light


Just a thought, but I figure with an electrical nightmare, you need as many posibilities as you can get. There is a switch behind your brake pedal. when you step on the brake, it contacts a button on the switch, which allows power to get to your brake lights. Maybe one of the wires coming from the switch is catching the steering column mechanisms. I hate electrical stuff. So, I wish you the best of luck. I sincerely hope that I could be of some help.

Jan 14, 2009 | 1992 Buick LeSabre

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