Question about 2003 Chevrolet TrailBlazer

1 Answer

Brake lamps wont work when brake is applied.

Changed all the lamps and even switched the bulbs back and forth. they were not the problem. The top brake light works just not the tailight brakes.

Posted by on

  • ian_t_berg Sep 07, 2009

    I actually have read a couple of people with the problem all over the net. My problem was that the bulbs are two stage and the brighter stage that applies the brake was out.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Chevrolet Master
  • 14,036 Answers

CHECK FUSES.THE TOP BRAKE LIGHT WORKS ON A SEPERATE FUSE.

Posted on Sep 07, 2009

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

I have a 1999 gmc suburban 4x4. All rear lights and license plate lights are not working. All fuses are good as well as all light bulbs. Any ideas what the problem could be?


Sounds like a faulty signal switch.Here's a way to check it,hold the brake pedal down while pushing down on and wiggling the hazard switch.If the brake lights come then replace the signal switch.

Apr 30, 2012 | Nissan Sentra Cars & Trucks

1 Answer

2009 Impala rear lights not working


Turn Signal Lamps
The LT T/SIG and RT T/SIG fuses located in the underhood fuse block supplies battery positive voltage to the body control module (BCM) for turn signal and hazard lamp operation. When the turn signal switch is place in either the LEFT or RIGHT position, ground from G202 is applied through the turn signal switch signal circuit to the BCM indicating the turn signal request. In response to this signal, the BCM applies a pulsating voltage to the front and rear turn signal lamps supply voltage circuits cycling the lamps ON and OFF. The BCM also sends a message via GMLAN to the instrument panel cluster (IPC) to cycle the turn signal indicator ON and OFF depending on the position of the turn signal switch.
Ground for the turn signal lamps is supplied as follows:
• G101 provides ground for the left front turn signal lamp
• G100 provides ground for the right front turn signal lamp
• G302 provides ground for the left and right rear turn signal lamps

The LT T/SIG and RT T/SIG fuses located in the underhood fuse block are also used by the body control module (BCM) for stop lamp operation.
The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The body control module (BCM) provides both, a 5-volt reference voltage and low reference to the brake pedal position sensor. The position sensor provides an analog voltage signal back to the BCM that will increase as the brake pedal is applied. When the brake pedal is applied, the BCM will then apply battery voltage to the left and right stop lamp supply voltage circuits and the center high mounted stop lamp (CHMSL) supply voltage circuit illuminating the stop lamps. At the same time the BCM signals the transmission control module (TCM) and the engine control module (ECM) that the brakes are applied. Ground for all stop lamps is provided at G302.
The stop lamps on this vehicle will not illuminate unless the ignition is in the accessory, run, or crank positions. When the ignition is in the OFF position the stop lamps will not illuminate when the brake pedal is applied.

Did you check the fuse's. ? Wouldn't think it's a ground because right an left tail lamp Assembly's use same ground ! Did you check for B+ voltage at the bulb. with a volt meter ? Power is supplied by the BCM . Could be the tail lamp assembly

Jul 19, 2017 | Cars & Trucks

3 Answers

Brake light dont work, change bulbs, fuse, bake switch, and has power still dont work


You have a failed brake lamp relay,this is located at the back right hand in the trunk at the quater panel.

Mar 12, 2012 | 2003 Honda Civic

1 Answer

I have a 2007 Hyundai Sonata and the brake lights (all of them) are not working. I checked the fuse and changed the brake bulbs. Do you have any other suggestions?


Check the following :
1. First of all check the fuse of the brake lamp circuit. use a multimeter to check the +12 volt or use a test lamp of 12 volts.
2. Check the brake lamp pressure switch which is mounted on the master cyclinder- brake pedal. check for connection fault , check for voltage on switch as it must contact when the brake is applied .
3. chek the line to the brake lamp/tail lamp assembly . Check the GROUND connection of the lamp unit, check the holders.
A voltage absence till the lamp end will confirm the area of fault.

Sep 17, 2011 | 2006 Hyundai Sonata

1 Answer

1995 ford windstar gl and only the top mount brake lamp is illuminating. Checked all fuses and bulbs and they are all ok. the rear lower 2 lamps illuminate when the lights are on, they just don't brighten...


Sounds like maybe a bad turn signal switch. If the brake and turn signal use the same bulb than the turn signal switch will interrupt the brake signal and supply a turn signal to the bulb. Usually you can wiggle the switch while holding the brake pedal down and get them to intermittently work. If that happens than for sure the switch has failed.

Sep 26, 2010 | 1995 Ford Windstar

1 Answer

The high mount stop lamp not working while two brake lights stay on while driving.


There will be a switch on the the brake pedal. Gently move it back and forth. If the lights stay on this will have to be replaced. Then replace the third brake light bulb.

Jul 16, 2009 | 2005 Ford Focus

1 Answer

Right brake light is out. have already replaced the bulb and fuse although both looked fine. i think in need to replace the break light switch just not sure how


If the brake light switch is bad, both brake lights would be out, so don't change it. Check the brake light socket to see if there is any corrosion inside, which is usually the problem. Use a piece of sandpaper folded over and push back and forth with a small screwdriver to clean up contact in socket. To prevent corrosion in the future, pick up some dielectric grease at any parts store, and place a bit in the socket. If corrosion isn't the problem, you need to check the socket with a voltage meter to see if there is power to the socket when brakes are applied. If not, you will have to trace wires back to find where the problem is.

May 16, 2009 | 2001 Jeep Grand Cherokee

2 Answers

2000 Jeep Wrangler, electrical issue


if the 3ed brake light works , rapidly move hazard switch back & forth & recheck, if they now work change turn signal switch , they are being canceled by switch

Sep 06, 2008 | 2000 Jeep Wrangler

Not finding what you are looking for?
2003 Chevrolet TrailBlazer Logo

153 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8152 Answers

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

Answer questions

Manuals & User Guides

Loading...