Question about 1996 Oldsmobile Ninety Eight

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The center stop light in the rear window sounds off constantly but the light is not burnt out could it be the brake light switch if so where is it located

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It could be that the bulb is loose or if the brake light switch is out of alignment,It is located on the upper part of the brake pedal shaft.

Posted on Aug 01, 2010

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Posted on Jan 02, 2017

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1 Answer

Where is the stop lamp or brake lamp fuse and panel for a 2007 cadillac cts?


Kevin , this is a very complex way of stoplamp control , I will post GM service Description and Operation of how they work an let you deside if you want to tackle this ! Do the center high mount brake lights work ?
The brake pedal position sensor is a resistive device used to sense the action of the driver's application of the brake pedal. The brake pedal position sensor provides an analog signal that will increase as the brake pedal is pressed.
The brake pedal position sensor receives both a 5-volt reference voltage and a low reference signal from the electronic brake control module (EBCM). When the brake pedal is pressed, a variable signal is applied from the brake pedal position sensor to the EBCM through the brake sensor signal circuit. The fuse block left rear supplies battery positive voltage to the bass relay switch through the BASS fuse. One side of the bass relay coil is permanently grounded at G402. The EBCM supplies voltage to the bass relay coil upon receiving the signal from the brake pedal position sensor. The switch contacts of the bas relay close and battery positive voltage is applied through the bas relay switch to the center high mounted stop lamp (CHMSL), and to the turn signal/hazard flasher module through the stop lamp switch signal circuit. The ground for the CHMSL is applied from G402. The turn signal/hazard flasher module then supplies voltage to the left and right stop lamps in the tail lamp assemblies that have ground at G401 and G402. For export vehicles the stop lamps receive battery positive voltage directly from the bass relay.

There could be a code stored in the EBCM - electronic brake control module - DTC B3903 Stop Lamp Relay Circuit
DTC C0278 Brake Pedal Position Sensor Not Calibrated
there are several other codes that pertane to the brake lights . you could try Replaceing the bas relay !
Fuse Block - Left Rear
In the passenger compartment, under the left side of the rear seat at carpet.

Jun 28, 2015 | 2007 Cadillac CTS 3.6L

1 Answer

How can I test the multifunction switch?


Its possible both brake bulbs are burnt out.
Rare, but a wiring issue to both rears.
try the hazards. if the hazards are same as brake lights you are in luck to test alot. if the brake lamps light up with hazards then you know your multi function switchis bad.

May 07, 2014 | 2005 Pontiac Montana SV6

2 Answers

WHAT IS THE THIRD STOP LIGHT


The third brake light is the brake light in the center of the vehicle either around the lower part of the rear window or above the rear window. They didn't start to become common until the late 80’s - early 90's. It is also known as the high mount brake light or the cyclops break light? If that's not what you where looking for let me know and I'll be happy to help you further. Thank you for using fixya.com

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Oct 16, 2011 | Cars & Trucks

1 Answer

1999 Nissan Pathfinder JN8AR07S1XW372606 Tail lights remain on all the time including the cluster of lights above the rear window, even with the ignition key off and all light switches off. The...


The lights get power from somewhere else, not their control button - you will need to access the wire connector at the left cluster and locate the wire that delivers the power and the status of the grounding connection/bolt (most likely it's corroded). Since the cluster of lights above the rear window are the central brake lights only it means that if you get them constantly on then the brake lights are constantly on . To check for that is easy, just test the brake pedal switch.

Apr 12, 2011 | 1999 Nissan Pathfinder

2 Answers

1998 Lincoln Town Car ONLY CENTER BRAKE LIGHT IN REAR WINDOW WORKING. I'VE CHANGE BRAKE LIGHT SWITCH. STILL NO LEFT OR RIGHT BRAKE LIGHT.


If the hight mount brake light is working , then your switches , fuses , relays , are OK . Most likely problem is that the bulbs themselves are burnt out , or there is a broken or loose wire.

Feb 02, 2011 | 1998 Lincoln Town Car

1 Answer

1998 chevy lumina: rear window brake light not working, left brake light not working, rear left turn signal not working


See if bulbs have burnt out in the left brake light and rear turn signal (one bulb if combined) and also rear center high mount brake light.

If the left turn signal has a slower speed than the right turn signal, this is a symptom of a bulb or bulbs burnt out.

Usually, the wiring is not a problem, but I would not rule wiring (or sockets) as a problem out.

Good luck on this repair.

Jan 19, 2011 | 1998 Chevrolet Lumina

2 Answers

Rear break light will not go on but rear window break light will


could be the light itself,the red brake wire that comes off the rear brake lights that feeds this stop light,sometimes things get shoved against this wire and its cut,or if it splits off in the frame,it could also be broken here too

May 14, 2010 | 2006 Hyundai Sonata

1 Answer

2004 Accent Rear lights stay on after turning motor off and eventually drain the battery. This has occurred on my son's car and also my son-in-law's car


Is it just the Rear Window Light that stays on, or is the Rear Window Light and the brake lights located at the back/bumper of the car? If it is BOTH the Rear Window Light AND the brake lights at the rear of the car, then you likely have a faulty brake switch located at the brake pedal inside the car cabin. When the brake pedal is in the normal position, ie - you are not depressing the brake pedal, the arm of the brake pedal leading to the pedal with your foot pushes upon... this arm is applying constant pressure to the switch - with keeps your brake lights OFF. When you apply pressure to the brake pedal, it moves the brake arm away from the switch, which activates the circuit, and your brake lights turn on. If this switch is broken, your brake circuit thinks the brake pedal and arm are being pushed away from the switch, and your brake lights turn on. As you are aware, having the light on constantly can wear down your battery AND the heat from this constant light bulb of the brake light in the rear window can deform the shape of the red reflector in this rear window light housing. If, however, it is only the rear window light that stays on - then it is probably a loose or bad connection where this light plugs into the rest of the circuit in the trunk near the back seat. If this is the case, follow the wires from the rear window light assembly to the point where they plug into the rest of the circuit (inside the trunk) and unplug this wire set, clean the terminal ends, and plug them back together. ***WAIT, WAIT!!*** because you of the risk of touching the terminal ends together and blowing the circuit, if you also plan to clean the hot side, please remove the NEGATIVE battery terminal while cleaning (DO NOT USE WATER, just a wire brush or steel wool). After you are done cleaning and have the terminals reconnected, reconnect the negative battery terminal (you will also have to reset your radio stations and radio clock).

Jul 19, 2009 | 2002 Hyundai Accent

1 Answer

Wires burned no brake lights and one taillight doesnt work


Yes , The wiring in question does effect the brake lights because they all run on the same circuit.
I would repiar or repalce all the wiring and then replace the brake light switch. The switch could have shorted out from the fire.

Apr 11, 2009 | 1998 Dodge Caravan

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