Question about 1989 GMC C1500

1 Answer

Both wires to brake light switch are hot until brakes are pressed then one looses power. 1989 gmc truck need to wire powerstop trailor brake module. any suggestions

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Guru:

    An expert who has written 7 tips or uploaded 3 video tips

  • Expert
  • 312 Answers

You'll have to find the wire that is hot when the brake pedal is pressed. hook the red wire from the module to this, the black wire will go to battery hot, the white will go to ground and the blue wire will go to the trailer connector for the rear electric brakes.

Posted on Mar 17, 2011

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Where do the 4 wires that plug into the brake light switch on a 1989 Chevy Cheyenne 1500 truck origanate from


Are you having trouble with brake lamps? The orange wire is voltage for brake lamps, voltage comes from fuse. When brake switch is activated, the white wire goes hot, goes to turn signal switch. Your lower brake lamps are wired through turn signal switch.
Any other wires may be for cruise control, where applicable. I'm probably leaving something out, I just can't think what it is, at the moment?
26211965-z33rarn03reygqwbcbj0ismt-4-0.jpg

Jun 04, 2016 | 1989 Chevrolet C1500

2 Answers

1989 Saab 900 turbo convertable


Either the ground wire is not working or disconnected or the wiring is short.

Jun 02, 2008 | 1998 Saab 900

1 Answer

Brake lights not working there is power on the brake switch only when the key is on


How many wires are on that switch? The brake light wire will be hot at all times, key on or off. Have you checked the fuse? Has any re-wiring work been done recently? Anything installed requiring work done under the dash?
A plain brake switch, with no cruise control or any other wire, will only have two wires at the switch connector, one hot wire from the fuse panel, and the other wire going to the brake lights.

Dec 22, 2012 | 1989 Chevrolet C1500

1 Answer

No left turn/brake light for trailer


In the Uk nearlly all trailor socket wiring is done from the rear light wiring of the towing vehicle so I suggest checking the wiring back from the trailor connection socket and also socket, it could be a broken or cut wire. Also will probably find your vehicle a control unit fitted the trailor socket which could also the problem. Find the pin outs for your turn signal on the socket and connect a bulb across this connection and the common earth to check its not a fault on your tralior.

May 26, 2012 | 2005 GMC Sierra 1500 Hybrid

1 Answer

1995 GMC k2500 5.7: Parking lights stay on all the time. With engine off, light switch off parking lights constantly on. Go off when 50 amp red under-hood fuse is removed or when 10 amp in-dash fuse...


try to depress the parking brake ONE CLICK to turn them off.
You are probably spot on when dirrecting your attention to the trailor wiring as there is a master power wire that would have been installed to power the relay box that your vehicle would have been wired with.
Try the parking brake... it will bypass / override the auto daylight illumination protocall and extinguish the daytime running lights as well.

Aug 21, 2011 | 2001 Chevrolet Malibu

1 Answer

NO BRAKE LIGHTS - FUSE BLOWS


Really need more info but if it blows fuses you have a hot wire touching metal somewhere......
or something plugged in where it shouldnt be.....Or wrong size fuse..You have a brake light switch attached to the brake pedal which is common to fail.....also brake light bulbs and fuse ...check where bulbs are installed at recepticles....check for naked wires touching metal.....also use a good rated fuse...
should be a 15 some are 10 some 20...i would try a 15 if you dont know..................Sometimes your foot can accidently kick wires loose under dash at brake light switch........some cars also have
a cruise control switch above brake light switch.....DONT confuse one with other....NEED MORE INFO ABOUT VEHICLE TYPE TO GIVE CORRECT ANSWER................METALPOET

Jul 29, 2011 | GMC Canyon Cars & Trucks

2 Answers

1989 GMC SIERRA BRAKE LIGHT IN DASH STAYS ON [CHECKED FOR AIR IN BRAKE LINES-NO AIR] [BRAKE FLUID LEVEL GOOD] [BRAKE PEDAL PULLED UP] IN DASH BRAKE LIGHT STAYS ON


Check your emergency brake. Make sure it isn't partially pressed in. Try unplugging the switch to the emergency brake and see if the light goes out; if it does the switch is bad.

Jun 24, 2011 | 1989 GMC Sierra

2 Answers

I need to be walked through installing a Bulldog self learning anti theft bypass module 791 on 2007 GMC Sierra 2500 HD SLE. Thanks!


Here have information about #791 bypass module: Bulldogsecurity Model791

IF YOUR REMOTE STARTER IS CLICKING AND/OR FLASHING THE PARKING LIGHTS AND IS NOT RESPONDING TO THE REMOTE, IT IS IN SAFE MODE AND NEEDS TO BE INITIALIZED BY DOING THE FOLLOWING:
If you have a 4 button remote, you must ground the black/blue hood pin wire (raise hood if hood switch is installed). Apply 12volts to blue/black brake wire (press and hold brake pedal if wire is installed). Press and hold any button on your remote until clicking and flashing stops. Unit will now respond to the remote. Remove ground from hood pin wire and voltage from brake wire. If you have a 2 button remote, hold brake and press any button on the remote until clicking and flashing stops.

ADDENDUM
If you have an RS1100 or RS1200 and your vehicle runs for several seconds, shuts off, restarts, runs, and shuts off again, perform the following step: Connect the Black/White tach wire (from the 16 pin plug) to the heavy gauge White Ignition 1 wire and program the unit for Tach Mode (bottom of page 19).

Witch model alarm have your vehicle?

Good luck.

Mar 10, 2010 | GMC Sierra 2500HD Cars & Trucks

2 Answers

Need a wiring diagram for a chevy s10. brake


your power starts at the brake light fuse,check with a test light,then proceed to stop light switch on brake pedal under dash,one wire will be hot when when you check it with your test light, the other won't be until you press down the brake pedal then the power flows through to the second wire,if no power to second wire replace switch,if you have power remove tail light bulbs and check for power in side socket.

Nov 24, 2009 | 1997 Chevrolet S-10 Pickup

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

Not finding what you are looking for?
Cars & Trucks Logo

112 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

75066 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...