Question about 2005 Chevrolet Silverado

2 Answers

Right side trailer brake light does not work

I have a 2005 Chevrolet 2500HD pick-up with Duramax Diesel. The trailer connection is a typical 7 prong receptical. When I apply the brakes, the brake lights on the truck come on but the right rear trailer brake light does not come on. The problem is with the truck, not the trailer. Using a test lamp I find there is no electrical current for the right side trailer brake light at the recepticle where the trailer wiring harness plugges in. In fact, as I trace the towing wiring harness all the way forward and under the hood, I still have no power for the right side brake lamp. I removed the fuse box cover under the hood and actually lifted the fuse box out of it's holder/bracket exposing the mass of wires underneath. It was at this point that I decided to seek some additional help. I managed to fine one wire (dark blue) that lights the test lamp when the brakes are applied. This wire runs to what appears to be a relay. Is it possible that a relay can be the problem here? If so, which relay would it be and where is it located in relation to the others in the fuse box? I do not have a wiring schematic of the truck so I don't know what color of wire to look for that may be causing the problem nor to which of several relays that it may be running to. The wires coming from the firewall (and the brake peddle switch) to the fuse pannel are a different color than the ones leaving the fuses and relays. Thank you for your help.

Posted by on

  • 2 more comments 
  • smartwrench1 May 11, 2010

    did you check the light module under the rear of the truck it controls all of the trl lights and tail lights these are a common failure item on chevy's

  • Dar
    Dar May 11, 2010

    Doesn't the trailer connection run to the same wire that runs the brake lights on your truck? If you have brake lights on your truck, the truck isn't the problem. It's either your receptical, or the wiring to it, or the wiring or on your trailer.

    Is this a factory plug in or an after market?

  • Mike Butler
    Mike Butler May 11, 2010

    My guess is that the blue wire you found is for trailer brakes. Does / is your truck wired for a trailer with brakes? I would also check in both fuse panels as some vehicle use a separate fuse for right & 1 for left signals in some cases, as well as brake. Does that same one come on when brakes applied?

  • exhaust pros Nov 29, 2012

    I have repaired this problem before there is a trailer control module on the back of the fuse pannel in the dash We traced there by test light on the 2 trailer fuses in the front of the pannel we were getting the same results there as the trailer was brake and turn on the left side and only turn on the right side remove the lower pannel of the driver side dash for easier access its a black box that just plugs in

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

Did yo check the fuse panel inside the truck its located on the drivers side dash , you have to open the driver side door, in there is a 10 amp fuse that is linked to rt trailer brakes and rt turn signal for the trailer, if the fuse is good there is a black box under the dash located on the floor on the driver side, just to the left of the break, thats where must of the plug in wire harness is for the trailer breaks!

Posted on Jun 10, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have a 2005 chevy silverado and is trying to hook up my reverse camera so that the led on the camera turn on when i put the truck in reverse any help?

Posted on Aug 29, 2010

4 Suggested Answers

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

  • 1596 Answers

SOURCE: Park Brake Adjustment


Park Brake Adjustment (Disc Brake)

Tools Required

j 21177-A Drum-to-Brake Shoe Clearance Gage

Park Brake Shoe Adjustment

Caution: Refer to Brake Dust Caution.

Important: The park brake shoes must be adjusted before the park brake cable tension is adjusted.Set the J 21177-A so it contacts the inside diameter of the rotor

  1. Position the J 21177-A over the shoe and the lining at the widest point.
  2. Turn the adjuster nut until the lining just contacts the J 21177-A. Park brake shoe to brake rotor clearance: 0.6604 mm (0.026 in)
  3. Repeat steps 1-3 for the opposite side.
Park Brake Cable Tension Adjustment

Important: Before you adjust the park brake cable tension, verify that the park brake shoes are adjusted to provide a clearance of 0.6604 mm (0.026 in) and the rear disc brake rotors are installed.

  1. Verify the self adjuster lock-out pin has been removed.
  2. Fully apply and release the park brake pedal 3 times.

Posted on Feb 22, 2009

Monster80
  • 460 Answers

SOURCE: where are the computer's on a 2004 2500hd duramax

it should be some where in the front of the truck on drivers side..down next to the frame..they move them so much but it will be in that area..hope this helps you and repost if no luck..have a great night

Posted on Apr 02, 2009

  • 1 Answer

SOURCE: Duramax Shuts off at 1000 rpms

I had the same problem and it ended up being the EGR Valve that was sticking.

Posted on Apr 28, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I Have an 2005 chevy duramax. i purchased and S&H horse Trailer. When i plug a five prong round into the seven pin with an adapter the horse trailer on the passenger side wheel locks and drags


I would start by making sure the emergency break away switch has the plunger in it and it's working properly. If everything is OK with that then the 5 pin plug must be wired incorrectly. If you only tow the trailer with that truck I would suggest changing to a seven pin connector on the trailer. It would appear you also have a problem with the left trailer brake. They should work together.

Jun 02, 2011 | Chevrolet Chevy Cars & Trucks

2 Answers

I have a 2003 chevy hd duramax diesel, the right brake and turn signal work fine on the truck, but doesn't work on the trailer. I checked the right trailer stop and turn signal fuse and it is fine. I...


I lost the light in the 2003 Duramax a few week ago.I just found a blown fuse under the hood in that big fuse panel by the driver side. It was the 15 amp mini fuse on the upper left hand corner. There was a white arrow pointing to it. Evidently someone has had the problem before. I bet that's my culprit

Dec 30, 2009 | Chevrolet 2500 Cars & Trucks

1 Answer

Brake lights


If you have an aftermarket trailer towing plug on it, that's where i would look first. Something is shorting out in there, or you have a broken wire or ground somewhere. Proabably near the back where gravel stones can hit.

Oct 07, 2009 | 2003 Chevrolet Silverado 2500HD

2 Answers

Trailer brakes


Take a 12 volt test light... the kind that has a spring loaded clip to hold the probe into the wire, and insert it into the wire just before the trailer plug, vehicle side. (Blue I think) If there is a connection, the brake should see it and you should have an indicator light. When you activate the brake the test light should lite up. If not, move up to the brake actuator and test the blue wire. If there is nothing at the actuator, check the black wire. It is power to the controller. If no power there, check fuses again. If it does pick it up at the plug, connect the trailer and test the trailer itself. First ground to the trailer and then to the truck. Most problems are ground wire related. Then move to the axle and test it there. For the brakes to work, and even show on the indicator, there has to be a ground and power to the brakes themselves. There are 2 wires to each brake... a ground and a power. Test across both wires to make sure you have power and ground. You can also hook another trailer to your truck or another truck to your trailer. Lights can work through trailer ball ground. Brakes can't. leave the trailer unhooked from the trailer and hook the wiring up and test the lights. That usually will indicate a good or faulty ground. Also make sure there is a GOOD ground to the truck frame/body. Also try http://www.etrailer.com/faq-wiring.aspx. They have a great website with lots of info. Hope this helps. Mike

Sep 30, 2009 | 2003 Chevrolet Silverado 2500HD

1 Answer

My trailer lights wont work on my snowmobile trailer. What fuses should I check? What else could it be. I have a 2007 2500HD Silverado Classic LT DURAMAX.


The best thing to do is check with a test light on the outlet of your pickup where you connect your lights and turn you key on without starting it and turn your turn signal on right or left and probe the prongs and see if there is one flashing. Do the same with the other flasher and make sure at least that is working. If not let me know back.

Aug 09, 2009 | 2007 Chevrolet Silverado 2500HD

1 Answer

Rear brake lights don't work


you prob got a trailer plug prob bad wires if not tail lights run through turn signal switch tell fix ya bout me ok

May 23, 2009 | 2005 Chevrolet Silverado 2500HD 2WD

2 Answers

Trailer harness - Red wire has no power


Hi: under the hood in the power distribution box there is a 40 Amp fuse that has to be installed to power up the trailer package. When standing looking from the front left fender it should be at the front right corner, refer to the power distribution diagram on the cover. As well under the box by the spare tire is a plug in type module mounted on the frame. There should be 2 wire harnesses located there, make sure the correct plug in is connected. Hope this helps... please rate suggestion .... ty

Apr 28, 2009 | 2005 Chevrolet Silverado 2500HD 2WD

2 Answers

Duramax Shuts off at 1000 rpms


I had tha same problem it was the high pres. fuil pump. mine was 2000 rpms and 25 to 30 mile an hr was all i could get out of mine. hope this help you out.

Apr 20, 2009 | 2005 Chevrolet Silverado 2500HD 2WD

1 Answer

2003 duramax 2500hd brake lights stay on when lights are on


You may have faulty wiring for your trailer lights. Look under the back of the truck where the wiring harness leads to the trailer wiring harness. Usualy it is a 3 way plug in the harness. Try unpluging the harness from the trailer wiring and just plug the other 2 wires into eachother
Hope this works for you!

Dec 17, 2008 | 2003 Chevrolet Silverado 2500HD

Not finding what you are looking for?
2005 Chevrolet Silverado Logo

2,252 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8202 Answers

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

Answer questions

Manuals & User Guides

Loading...