Question about 2003 GMC Sierra 1500

1 Answer

I have a 2006 Chevrolet Silverado and the lights stay on when my brake controller is plugged in, even if the vehicle is off and there are no keys. What could be wrong

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 53 Answers

I know that chevy vehicles in 04 and up have the lights stay on for about 1 minute until they turn off. Now if your lights stay longer than a minute then you can have the wires cross at some juncture

Posted on Jul 14, 2009


1 Suggested Answer

  • 2 Answers

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

a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Abslight stays on. How to fix? This is a2007trailblazer?

First you need to have EBCM - electronic brake control module check for DTC'S - diagnostic trouble code's . If the light is on there is a code stored . I think most part stores can do this and for free . After you find out what code is stored , looking up that code in service repair information for diagnostic trouble shooting chart would be next step . There are a few codes too.
DTC C0035 or C0040
DTC C0045 or C0050
DTC C0110
DTC C0131
DTC C0161
DTC C0186
DTC C0196
DTC C0201
DTC C0240
DTC C0241 or P0856
DTC C0244 or P1689
DTC C0245
DTC C0283
DTC C0287
DTC C0290 or C0292
DTC C0455
DTC C0550
DTC C0558

Find the code do the diagnostic's , fix the problem , wiring issue's , a sensor , bad module ,what ever it is . The light will go out then . Here is a sample of code discription .
• DTC C0035 Left Front Wheel Speed Sensor Circuit
• DTC C0040 Right Front Wheel Speed Sensor Circuit

Dec 30, 2016 | 2007 Chevrolet Trailblazer

3 Answers

What would cause abs light, jumpy speedometer,rough shifting, air bad light, and brake lights to stay on in 05 silverado?

bad or damaged body ground---chaffed/damaged wire or wire harness and bcm-[body control module ] going bad or harness damaged

Jul 11, 2016 | 2005 Chevrolet Chevrolet Silverado 1500

1 Answer

Cruise control not working in my 2009 Silverado. It went out gradually over the past several months, pretty much worked intermittantly.

cruise control module has failed. or if your brake lights are staying on, then brake light switch has failed and not allowing cruise to engage. Have someone stand behind truck and see if brakes are working properly, if not- replace brake light switch. if fine, then swap out cruise control module under hood.... prob find one at a junk yard.

Feb 02, 2016 | 2009 Chevrolet Silverado 1500

1 Answer

When to do a tune up on a 2006 chevrolet silverado

Hello, the spark plugs are good for 100,000 miles on this vehicle. when you get close to 100,000 miles is when you should tune it up

May 20, 2010 | 2006 Chevrolet Silverado

1 Answer

Center brake lights on both sides and cab light stay on, unless I unplug electric tow brake control. when unplugged I have no cab light or center tail and brake lights. If plugged back in sometimes they...

You may have the polarity backwards on the tow brake control unit. Or should I say on the lines coming out of it.

Check your polarity with a multimeter and see whats what.

Have you had to fix or replace any other light fixtures on your truck? These might also be worth checking for polarity flips.

Be sure to check your power supply from the truck to the control unit and be sure you arent wired for power in series instead of parallel.

Oh...and if this problem just occured out of the blue...suspect the tow brake control is faulty. Go to your trailer supply store and borrow one to test.

Good luck and be careful!

Dec 11, 2009 | 2005 Chevrolet Silverado

1 Answer

No rear brake lights on 2006 silverado

brakelight switch above brake pedal. sounds like the this point.


Apr 18, 2009 | 2006 Chevrolet Silverado 1500 2WD

2 Answers

Blower motor stays on high, even with key out

the blower motor speed control module is defective, replace it.

Dec 24, 2008 | 2002 Chevrolet Silverado

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

107 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

77202 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides