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What color are the four wires on a brake light switch and where do they go on a 1987 GMC high sierra

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6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 65 Answers

SOURCE: Brake lights quit working.

if all fuses and bulbs are ok get to the brake switch and see ifits stiff or stuck, if it just has two wires on it you could join themtogether to see if the brake lights come on though obviuosly dont leave them joined.Good luck davelee

Posted on Mar 23, 2009

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emissionwiz
  • 85111 Answers

SOURCE: factory radio wiring color codes

Here ya go. enjoy!
2002 GMC Sierra C1500 Car Radio Wire Color Codes
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Under the center console.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Posted on May 14, 2009

  • 1 Answer

SOURCE: trailer brake controller problem

I found the problem. Talking with a technician from the controller company, we determined that it was a fuse problem. I found that the fuse to the CHMSL was blown.


Posted on Jun 30, 2009

Mustgo
  • 2361 Answers

SOURCE: how to replace the brake light switch on a 1998

Brake light switch is active by the brake paddle.

Before you start,take a picture or do a sketch of the spring or linkage around the brake paddle.

Move the seat back will give you better access.

Press the paddle and the inner side (closer to the firewall) of the paddle will activate the switch.

Please keep in mind there are fuse(s) to protect the lighting circuit.

Check all the fuses before you R&R the brake switch,

Posted on Jul 16, 2009

  • 1 Answer

SOURCE: how to replace a brake light switch for a 1989

i have a 1989 gmc sierra that is having brake light and rear parking light issues. recently my truck was hit from the front and taken to a body shop for repairs. a couple days after i got it back my tail lights started acting up. during the day when parking lights and headlights arent needed my brake lights work fine but when the blinkers are on the are very slow in blinking. once the parking lamps/headlights come on the brake lights nor rear parking lamps come on. what can i do to fix this

Posted on Apr 12, 2010

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Brake lights wont go out on 2011 GMC 2500hd Denali have replaced brake switch. Only way to turn them off is to remove fuse.


I thought they had quit using the module in back, Maybe not. It is located behind the passenger side rear tire, mounted to the body. Usually grey in color, has four plugs going to it. I have replaced tons of these. Get some battery terminal cleaner and brake clean, most likely your going to have to clean out the plugs. Corrossion

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Follow the brake petal up to the brake rod. Unplug the switch wire then take the clip of the petal then the brake light switch should slide right off.

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Brake light switch wires broken


Here is a picture of the brake light switch. Also at this point just buy a new connector and splice it on, much easier.
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Jan 15, 2012 | 2000 GMC Sierra 3500

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I have a 1995 GMC Sierra an the third eye brake light comes on but the other brake light dont work


Could be both bulbs have burned out at once. Or could be the brake light switch. The third brake light and the normal brake lights operate seperatly. Or could be the wires.

Sep 01, 2011 | 1989 GMC Sierra

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How to replace a brake light switch on a 1998 GMC Sierra 1500.


Hello my name is Israel and I will be glad to help you. Above the brake pedal there will be a small white in color switch with two wires coming out of it. This is the brake switch. You will need to pull the pigtail from the brake switch and then "unscrew" the switch and replace with new one. Connect the pigtail. Adjust the switch so that the brake lights activate with a touch of the brake pedal. Good Luck.

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2 Answers

2002 GMC sierra brake lights not working. Reverse and blinkers ARE working!


Check fuses first. If thats OK, could be a problem with the brake switch (down by the pedal) or the wiring.

Mar 26, 2010 | 2002 GMC Sierra

1 Answer

My brake lights have stopped working. The high light above the rear window works fine and the rear signal lights are ok, too. I have replaced the bulbs and ckecked the fuse. Could it be the switch on the...


Hello,
The rear turn signals are wired through the Multifunction switch also called the turn signal switch. The Hazard switch is in that switch also and thats the circuitry the brake lights go through. You need to confirm voltage at the White wire off of the brake light switch and if its ok you have a bad multifunction switch.

I hope this helps.

Roy

Nov 17, 2009 | 2003 GMC Sierra 1500

1 Answer

1989 sierra no brake lights


The wiring foe the ignition switch and the actual switch is mounted on the lower end of the steering column inside. It's connected to the key switch bt a rod. Check your turn sugnal flasher. it is sererate from your four ways. First

Jun 02, 2009 | GMC Sierra 2500 Cars & Trucks

1 Answer

Brake lights dont work


make sure your geetin 12v to brake switch if not jumper a wire then try it

Mar 21, 2009 | 1989 GMC Sierra

1 Answer

Brake and/or taillights stay on


First, check the brake light switch, and if the high level light is on, the brake light switch is the likely problem. Even if it isn't, the bulbs could be burnt out. Anyway, disconnect the wire harness from the brake light switch on the brake pedal. If the lights go out, replace the switch. To test the light switch, disconnect the wire harness from that (with the switch in the "off" position). Again, if the lights go out, this is the problem. More likely, it is the brake one. This happened on my Dodge twice.

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