Question about 2000 Ford Explorer

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Ot brighten when brake is pressed

When I turn on my lights the brake lamps turn on but when I press the brake they do not brighten, I switched the brake switch for a new and I also checked the fuses and the problem persists

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  • yadayada
    yadayada May 11, 2010

    U mean the brake lights are on all the time? or are you saying the running lights work but the brighter brake lights don't?

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  • 205 Answers

Have you checked the Bulbs? It is possible they are both burnt out. Does the third brake light work?

Posted on Mar 19, 2009

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Posted on Jan 02, 2017

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2004 chevy impala brake light isses switch has been replaced and so have fuses and bulbs still no lights


Do you know how to test using a DVOM - digital volt ohm meter ? Is there B+ voltage going into the brake light switch ? An coming out when the brake pedal is pressed ? What fuse's ? There is only one fuse for the brake lights !
The BRAKE SW fuse in the RH I/P fuse block supplies battery positive voltage to the normally-open stop lamp switch. When you press the brake pedal the switch contacts close and battery positive voltage is supplied to the left and right stop lamp assemblies and to the center high mounted stop lamp (CHMSL). The left and right stop lamp along with the CHMSL are grounded at G302.
Do you know about the right insturment panel fuse box ?
Stop Lamps Inoperative
Step
Action
Yes
No
Schematic Reference: Exterior Lights Schematics
1
Did you perform the Lighting System Diagnostic System Check?
YES - Go to Step 2
NO - Go to Diagnostic System Check - Lighting Systems
2
Press the brake pedal.
Do all of the stop lamps illuminate?
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 3
3
Are all the stop lamps inoperative?
YES - Go to Step 4
NO - Go to Step 7
4
Inspect the BRK SW fuse.
Is the fuse open?
YES - Go to Step 14
NO - Go to Step 5
5
Disconnect the stop lamp switch.
Using a test lamp connected to ground, probe the battery supply voltage circuit of the stop lamp switch connector.
Does the test lamp illuminate?
YES - Go to Step 6
NO - Go to Step 13
6
Install a fused jumper between the battery supply voltage circuit and the stop lamp switch signal circuit of the stop lamp switch connector.
Do the stop lamps illuminate?
YES - Go to Step 12
NO - Go to Step 17
7
Determine if the center high mounted stop lamp is inoperative or the stop/turn lamps are inoperative.
Are the stop/turn lamps inoperative?
YES - Go to Step 8
NO - Go to Step 9
8
Do the turn lamps operate normally?
YES - Go to Step 17
NO - Go to Turn Signal Lamps and/or Indicators Inoperative
9
Disconnect the center high mounted stop lamp.
Using a test lamp connected to ground, probe the stop lamp switch signal circuit of the center high mounted stop lamp at the harness connector.
Press the brake pedal.
Does the test lamp illuminate?
YES - Go to Step 10
NO - Go to Step 15
10
Using a test lamp, probe between the stop lamp switch signal circuit and the ground circuit of the center high mounted stop lamp with a test lamp.
Press the brake pedal.
Does the test lamp illuminate?
Go to Step 11
Go to Step 16
11
Inspect for poor connections at the harness connector of the center high mounted stop lamp. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 20
Go to Step 19
12
Inspect for poor connections at the harness connector of the stop lamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 20
Go to Step 18
13
Repair a open or high resistance in the battery supply voltage circuit of the stop lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
14
Repair a short to ground in one of the following circuits:
• The battery supply voltage circuit of the stop lamp switch
• The stop lamp switch signal circuit of the stop lamp switch
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
15
Repair a open or high resistance in the stop lamp switch signal circuit of the center high mounted stop lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
16
Repair an open or high resistance in the ground circuit of the center high mounted stop lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
17
Repair an open or high resistance in the stop lamp switch signal circuit of the stop lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
18
Verify the stop lamp switch adjustment. Refer to Stop Lamp Switch Adjustment . If OK, replace the stop lamp switch. Refer to Stop Lamp Switch Replacement .
Did you complete the repair?
Go to Step 20
--
19
Replace the center high mounted stop lamps. Refer to High Mount Stop Lamp Replacement .
Did you complete the repair?
Go to Step 20
--
20
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2

Jun 23, 2017 | Cars & Trucks

2 Answers

2005 Silverado brake lights on tail not working, cruise out , bulbs and fuses ok


Brake light switch? The cruise and brake lights problems are likely related. The cruise control cuts out when you press on the brakes. I had a van where the cruse wouldn't engage. Then someone pointed out my brake lights were always on. It was the switch.

Dec 03, 2016 | Cars & Trucks

1 Answer

2000 Chevy Cavalier brake lights


Yes, if your turn signals in the back use the same filaments as the brakes, the multi-switch must allow the brake signal through when the turn signals are not activated. There are multiple diagrams for your system, so I'm not sure what you have. If you have the light blue wire that goes from the brake switch ul the column to the turn switch, make sure it is getting power when the pedal is pressed. It should go thru the switch as shown in the second diagram below.

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0996b43f8024bcbd-zzyiglue2iivran2oy1paayi-5-2.gif

Jun 30, 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

When i press the brake the dashboard lights turn on


Possible that the brake light switch shorts with the circuit, sometimes this can be a brake switch ground shorting through the dash boarrd ground circuit and turns the light on.
You need to disconnect the brake switch and trace the line. also check if the rear brake lamp circuit is shorting in the tail lamp assembly and so turns the dash /park light circuit ON.
This can happen if the tail lamp assembly /holder is shorting. So remove and check the tail lamp circuit/ the park/brake lights.

Sep 16, 2011 | 2003 Mitsubishi Galant

1 Answer

1989 Volvo 240DL Sedan My Brake lights cease to increase in lumen (brighten) when depressing brake pedal, however they are lit when headlights are activated. My running lights (headlights &...


lamp failure light on possible because the SECOND filament in your STOP/TAIL Light Bulb is burned out- change one side and check fail lamp again- repeat on other side- fail lamp works off of resistance-burned or blown bulb is only way it lights unless you have a wiring issue

May 03, 2011 | 1989 Volvo 240

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

2 Answers

Brake light wont light up when brake pedal is pressed


Sounds like a brake lamp switch or fuse. Check all fuses electrically, with a test probe you can purchase from any auto parts store. Go through each fuse with the probe touching the end or tip of the fuse after clipping the lead on the probe to a good ground. If the probe lights up at both ends of the fuse, the fuse is sound, if it only lights up at one end then replace that fuse and if the probe does not light up at all, that fuse is not active so turn on the ignition but dont start the motor. The brake lamp switch is attached to the brake pedal. It may have a single wire or several. All the switch does is connect the brake lamp circuit to an active supply rail so, The switch should have one active wire and the other wire should become active when the pedal is pressed. If it does not, replace the switch. If it does, then you may have two blown bulbs in the rear lamps or a damaged wiring harness to the rear lamps and you should seek the advice of a qualified person. Start with the fuses, then the switch, then the bulbs..and remember, you may have more then one fuse panel in the vehicle so check under the hood too..

Apr 24, 2010 | 1993 Lincoln Town Car

1 Answer

Brake light work bujt when i press on the petal it


I think your brake light switch is defective or needs an adjustment. The brake pedal is not making a connection to the brake light switch the brake lights will not brighten when you hit your brakes. If you are going to fix it yourself feel free to contact me and I will guide you through the repair.

Oct 09, 2009 | 2000 Volkswagen Beetle

3 Answers

Hundai Accent 1999, back lights ( brake) - they light constantly


Your vehicle's brake lamp switch is located on top of the brake pedal arm bracket. Most brake lamp switches can be adjusted if they cause the lamps to stay on, however sometimes a replacement of the switch is the only solution.

May 23, 2009 | 1999 Hyundai Accent

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