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I have a 2003 GMC savana and have no power going to the brake switch

I pulled all the fuses and they are all good I can't find out how to get the power back on to my brake switch.I had a old auto start in my van that was splice into one of the wires and the splice was left exposed and I think it got touched and it knocked the power out to the switch.

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  • Cars & Trucks Master
  • 14,384 Answers

At switch, straight wire it to see if it works,if so then bad switch.

Posted on Dec 30, 2012

  • bushnlo
    bushnlo Dec 30, 2012

    no power at wire going to the switch

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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fixincars
  • 335 Answers

SOURCE: I have a 2003 GMC

If someone took the time to look at the electrical schematic you will see several grounds in the circuit My first place I would go would be to check all the Grounds and Connections for the Brake Fluid level control, Brake Warning Indicator
The Instrument Panel Cluster (IPC) illuminates the brake warning indicator when one or more of the following occurs:

  • The body control module (BCM) detects that the park brake is engaged. The IPC receives a class 2 message from the BCM requesting illumination.
  • The electronic brake control module (EBCM) detects a low brake fluid condition. The IPC receives a class 2 message from the EBCM requesting illumination.
  • The electronic brake control module (EBCM) detects a closed brake pressure differential switch. The IPC receives a class 2 message from the EBCM requesting illumination.
  • The EBCM detects an ABS malfunction which disables dynamic rear proportioning (DRP) . The IPC receives a class 2 message from the EBCM requesting illumination.
  • The IPC detects a closed power brake booster alarm switch and closed power brake booster fluid flow alarm switch. The IPC illuminates the brake warning indicator and sends a class 2 message to the radio requesting the brake warning alarm.
  • The IPC performs the bulb check at the start of each ignition cycle. The brake warning indicator illuminates for approximately 3 seconds before turning OFF.
  • The IPC detects a loss of class 2 communications with the BCM or with the EBCM.
Driver Information Indicators and Messages
The following indicators are used to inform the driver of several different factors.

Brake Warning Indicator
The Instrument Panel Cluster (IPC) illuminates the brake warning indicator when the following occurs.
  • The Body Control Module (BCM) detects that the park brake is engaged. The IPC receives a serial data message from the BCM requesting illumination. The brake warning indicator flashes at a rate of approximately twice per second when the park brake is engaged.
  • The EBCM detects a low brake fluid condition or base brake pressure differential and sends a serial data message to the IPC requesting illumination.
  • The IPC performs the bulb check.
  • The EBCM detects an ABS-disabling malfunction which also disables Dynamic Rear Proportioning (DRP) and sends a serial data message to the IPC requesting illumination.

Here is a description of how the system works But i would check my Grounds and connections
www.aceautomotive1.com
Contact me if you need any more information Ill be glad to help

Posted on Aug 02, 2008

  • 221 Answers

SOURCE: gmc savana van will stop running while driving or start sputterin

It could be a clogged fuel filter or a bad fuel pump. Also try replacing the spark plugs and spark plug wires and having the timing checked. Good luck.

Posted on Mar 11, 2009

emissionwiz
  • 76846 Answers

SOURCE: cant find the location of this oil pressure switch on my 1999 gmc savana 1500 van with a 350 engine

very rear of engine center of block behind intake.

Posted on May 12, 2009

  • 169 Answers

SOURCE: Where is the fuse box on a 2005 gmc savana 3500

There is one under the hood on the drivers side. And one under the drivers seat. Good luck

Posted on Jan 02, 2010

Testimonial: "Thank you"

  • 212 Answers

SOURCE: 1999 GMC Savana 1500 5.7 L V8 won't start. It

CHECK TO SEE IF FUEL PUMP IS COMMING ON WHEN YOU TURN KEY ON.

Posted on Feb 02, 2010

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1 Answer

How to change brakes on a 2001 gmc savana 3500


Any brake work on your vehicle, is not any different
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There is more to brake service or work, than just changing
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If you plan on working on your own vehicles, in any area
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I think you know a repair shop has the experience & equip
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Hello , do you have amber colored turn lenses or red? I ask this because maybe the bulbs are not dual filament type in the brake light socket. There maybe a brake light fuse also. Do you have a third brake light as well? Does it work? Quinn , Arizona

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