Question about 2004 Cadillac CTS

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Brake lights not working on cts 2004 - 2004 Cadillac CTS

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4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

81vasquez
  • 34 Answers

SOURCE: where is the brake light fuses for a 2004 cadillac

should be under the driver side dash

Posted on Jun 06, 2009

  • 1 Answer

SOURCE: brake lights are not coming

fuse

Posted on Sep 08, 2010

saailer
  • 1868 Answers

SOURCE: 2004 Cadillac CTS break lights

Hello! There is a relay called the BAS relay (brake assist) that controls both the top brake light and the lower lights...Since the top light works the relay is doing its job...However, the relay output is connected to several White wires that carry the same voltage to all brake lights...One of those White wires (the one that carries voltage to the lower lights is open)...There is a Joint Connector located with the BAS relay in the Left rear fuse block...One White wire coming in from the relay contact and 3 White wires leaving...#1 to the top brake light...#2 left brake light and #3 right brake light...It would appear that the junction of #2 and #3 are open inside the Junction block...Not the easiest fault to find and fix...
If you have a multimeter I'll guide you through the process...Or you can take it to a wiring specialist...Wiring Junction blocks look like hair combs (multi-tooth metal combs that push into a connecter with several wires all the same color...In this instance WHITE WIRES...When someone depresses the brake pedal +12 volts must be on all three white wires...Send a comment...Guru...saailer

Posted on Dec 11, 2011

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1 Answer

Why my2004 Cadallic cts brake lights wont work or shift out of park?TC lig


A failed brake light switch or brake light circuit fuse will cause BOTH problems. Start by verifying that the fuse is OK, then proceed with replacing the brake light switch if the fuse was not at issue.

May 24, 2014 | 2004 Cadillac CTS

1 Answer

2005 cts brake warning light


This could be a wide variety of things...

Start with :
Low Brake Fluid
Worn Brake Pads
Emergency Brake left On
Ensure the Emergency Brake is Completely OFF

Apr 05, 2013 | 2004 Cadillac CTS

1 Answer

Tc, abs and service brake assist lights are on


Could be a wiring problem or the object that triggers the sensor.

Jul 07, 2012 | 2004 Cadillac CTS

1 Answer

2006 cadillac CTS 2.8 v6. Two side brake lights went out


im replacing the BPP sensor on one now, Brake Pedal Position sensor

Jul 14, 2010 | 2006 Cadillac CTS

1 Answer

All my rear lights are working, but my brake lights dont "brighten" when I step on the brake


First off, are the proper bulbs installed? They will have 2 elements inside. If yes, your brake light actuator needs replacing. (switch located under dash, the brake peddal hits it when you step on the brakes)

Mar 31, 2010 | 2004 Cadillac CTS

2 Answers

Radio effected by brakes?


If this happens when the car is still you have voltage interference between brake light voltage & antenna. If this happens from motion check all wire connections, loose antenna wire, to antenna.

Oct 21, 2008 | 2004 Cadillac CTS

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