Question about 2000 Cadillac Escalade

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Rear right turn signal and brake light will not function

The lights illuminate when the parking lights are on but does not illuminate brighter when the right turn signal is put on or the brake is pressed. I changed both the rear bulbs but there was no change, any ideas on the problem. 2000 cadillac escalade

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More than likely, the problem is in the turn signal modual. The turn signal/cruise control/wiper/bright switch is all contained in the module in the steering column. Mine did similiar stuff a year ago.

Posted on Feb 27, 2009

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Posted on Jan 02, 2017

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08 Buick lucerne cxl. Third brake light works as well as front signal lights. No rear brake lights or turn signals. Tail lights and headlights and third brake lights works. Bulbs good. Help


Stop Lamps
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 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 is applied, the BCM will then apply battery voltage to the left and right stop/turn signal 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 applies battery voltage through the signal circuit to the transmission control module (TCM) and the engine control module (ECM) indicating that the brakes are applied.
Ground for the stop lamps is supplied as follows:
• G402 provides ground for the left rear stop/tail/turn signal lamps
• G403 provides ground for the right rear stop/tail/turn signal lamps
• G301 provides ground for the CHMSL
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.
Battery voltage from the LT TRN/SIG and RT TRN/SIG fuses located in the rear fuse block is also used by the body control module (BCM) for stop lamp operation.

Turn Signal Lamps
Battery voltage supplied to the body control module (BCM) from the fuses listed below is used for turn signal and hazard lamp operation.
• LT TRN/SIG fuse for the left turn signals
• CTSY/RF TRN fuse for the right front turn signal
• RR TRN/SIG fuse for the right rear turn signal
When the turn signal switch is place in either the LEFT or RIGHT position, ground from G300 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. At the same time the BCM sends a GMLAN serial data message to the instrument panel cluster (IPC) to cycle the appropriate turn signal indicator ON and OFF.
Ground for the turn signal lamps is supplied as follows:
• G104 provides ground for the left and right front turn signal lamps
• G402 provides ground for the left rear stop/tail/turn signal lamps
• G403 provides ground for the right rear stop/tail/turn signal lamps

Do you have a factory scan tool (tech2) ? Your best bet , take it to the dealer .

Sep 08, 2017 | Buick Cars & Trucks

2 Answers

No brake lights,no tail lights and no turn signals.I do have headlights


IS there front park lights? Sounds as if the multi-function switch is defective. The brake lights/park lights to rear run through this switch as well as the signals. ( common problem )

Jan 04, 2016 | 2007 Ford Ranger 2.5

2 Answers

My turn signals flash wheni either hit the switch left or right n when brake is applied amber lights come on


Ahh. This is an easy one. The most common cause of problems like this is a failed lamp (bulb). The lamps in most cars are dual-filament lamps. One filament (the dimmer one) is for taillights or front marker lights. The other (the brighter one) is used for brake lights and turn signals.

Sometimes when a bulb fails, one of the filaments breaks and the broken fragment touches the other filament. This connects the light circuit to the brake/turn-signal circuit and you get strange effects like the one you describe.

Fixing this is easy,
  1. Turn on the parking lights. Walk around the car and look for the light (front and rear) that's not on. Replace that defective lamp.
  2. If that doesn't work, turn off the parking lights and turn on the 4-way flashers. Walk around the car and look for the one that's not flashing. Replace that defective lamp.

Apr 02, 2015 | Cars & Trucks

1 Answer

No brake lights i have turn signals and headlights and backing up lights but no center brake lights and no brighter left and no brighter right brake light. again all my lights work except when i hit the...


This is most likely to be your brake switch near your foot pedal then. They can come lose, or just break completely, rare, but it happens.
Get down on the floor and check up behind your brake pedal, it should look fairly obvious where it is then.
Good luck with it.

Oct 04, 2011 | Cars & Trucks

1 Answer

2003 Chevy Silverado When I apply the brakes the


I had an issue like this one on a 2007 Colorado. I assume you mean the turn signal indicator inside the truck lights up. It was a bad bulb. think it was the turn signal bulb on the side that is lighting up. As for the gear indication being dim there is more than one bulb that lights them up and one may have blown. I hope this helps.

Jul 15, 2011 | 2003 Chevrolet Silverado 1500

2 Answers

When headlight are on and hit the beake pedal only the 3rd brake light comes on the rest are stuck . When i release brake pedal it seems like i am driving with my brake light on . but my headlight off...


It may sound silly, but check your brake light bulbs to see if they have been installed incorrectly. Brake light bulbs have two filaments, one for tail light, and a brighter one for brake lights. On some cars if the bulb is installed wrong, the brighter filament will stay on for tail lights. The only other thing I can think of is the wrong bulbs have been installed.

Dec 25, 2010 | Toyota Camry Cars & Trucks

1 Answer

WHAT IS THE BULB NUMBER FOR THE BRAKE LIGHT ON 2005 TRAILBLAZER


2005 CHEVROLET Trailblazer
Low beam headlamp
9006
9006SU Silverstar ULTRA for Ultra Night Vision - The Whitest and Brightest Halogen
9006ST Silverstar High Performance Lighting: The Whiter and Brighter Halogen
9006EB EcoBright - Your Environmental Choice
9006XV XtraVision Halogen - The Brighter Light
9006CB Cool Blue Halogen - The Whiter Light

High beam headlamp
9005
9005SU Silverstar ULTRA for Ultra Night Vision - The Whitest and Brightest Halogen
9005ST Silverstar High Performance Lighting: The Whiter and Brighter Halogen
9005EB EcoBright - Your Environmental Choice
9005XV XtraVision Halogen - The Brighter Light
9005CB Cool Blue Halogen - The Whiter Light

Parking light
3757ALL

Front turn signal
3757ALL

Rear turn signal
3157LL

Tail light
3157LL

Stop light
3157LL

High mount stop light
Assembly

Fog/Driving light
880
880ST Silverstar High Performance Lighting: The Whiter and Brighter Halogen
893
893ST Silverstar High Performance Lighting: The Whiter and Brighter Halogen

License plate
2825
2825LL Long Life Upgrade: Up to twice the life of the standard lamp

Back up light
3157LL

Front sidemarker
194
194LL Long Life Upgrade: Up to twice the life of the standard lamp

Glove box
194
194LL Long Life Upgrade: Up to twice the life of the standard lamp

Map light
194
194LL Long Life Upgrade: Up to twice the life of the standard lamp

Dome light
212-2

Step/Courtesy light
194
194LL Long Life Upgrade: Up to twice the life of the standard lamp

Trunk/Cargo area
212-2

Nov 19, 2009 | 2005 Chevrolet TrailBlazer

1 Answer

Left brake light stays on


Usually when your signal blinks rapidly it indicates a blown bulb.   Switch on your four-way flashers and check your bulbs at each corner.  On the brake light staying lit, check to see if the left-rear bulb is installed correctly and is the correct bulb for the application.  I've seen people force bulbs in sockets causing the braking element of the bulb to light instead of the parking element.  The braking element is much brighter than the parking element.

Mar 17, 2009 | 2000 Jeep Wrangler

1 Answer

No lights in rear


I would Get in the Back pull up anything covering the Wiring harness for those lights and Look for A Corroded Connecter AND the GROUNDS on all thats why urn comes on while you Brake Electricity Finds the Easyest PATH to GROUND AND IF IT IS THROUGH THE Turn Sygnal switch GROUND is your FIRST PRIORITY here Trust me I'm ASE Certified in Electrical Systems
Grounds FIRST Please Dont forget to RATE me Thank You !

Dec 14, 2008 | 1991 Honda Accord

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