Service brake system - Silverado Chevrolet Cars & Trucks

SERVICE BRAKE BOOSTER
Refer to Brake Warning System Description and Operation in Hydraulic Brakes

SERVICE BRAKE BOOSTER
The SERVICE BRAKE BOOSTER message will be displayed when the supplemental brake assist signal circuit is toggled at 1.0 Hz with a 50 percent duty cycle. This message is also displayed if the instrument panel cluster (IPC) does not see an alive and well signal at key on. When this message is displayed it indicates a problem with the SBA and should be serviced or replaced.

How do the power brakes work ? Good .?

Service Brake Booster Message Displayed
Step
Action
Yes
No
Schematic Reference: Brake Warning System Schematics
1
Did you review the Brake Warning System Description and Operation and the Brake Assist System Description and Operation and perform the necessary inspections?
YES - Go to Step 2
NO - Go to Symptoms - Hydraulic Brakes
2
Start the vehicle.
Is the REDUCED BRAKE POWER message displayed for 1 minute before the SERVICE BRAKE BOOSTER message is displayed?
YES - Go to Step 3
NO - Go to Step 4
3
Perform the Brake Assist System Diagnosis
Did you find and correct the condition?
YES - Go to Step 12
NO - Go to Step 11
4
Disconnect the Supplemental Brake Assist connector.
Test the ignition 1 circuit for an open or a short to ground.
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 12
NO - Go to Step 5
5
Test both ground circuits for opens.
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 12
NO - Go to Step 6
6
Test the engine on signal circuit for an open or a short to ground.
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 12
NO - Go to Step 7
7
Test the vehicle speed signal circuit for an open.
Did you find and correct the condittion?
YES - Go to Step 12
NO - Go to Step 8
8
Test the supplemental brake assist signal circuit for an open or a short to voltage.
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 12
NO - Go to Step 9
9
Connect the supplement brake assist connector.
Disconnect the instrument panel cluster connector.
Connect a DMM from battery positive voltage to the supplemental brake assist signal circuit.
Turn the ignition to the RUN position while observing the DMM.
Did the DMM flash battery voltage?
YES - Go to Step 11
NO - Go to Step 10
10
Replace the Supplemental Brake Assist pump motor assembly Refer to Power Brake Booster Auxiliary Pump Replacement .
Did you complete the replacement?
YES - Go to Step 12
--
11
Replace the instrument panel cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console.
Did you complete the replacement?
YES - Go to Step 12
--
12
Start the engine.
Does the Service Brake Booster message stay on?
Go to Step 2
System OK

If the piston of your brake caliper is all the way out, how do you plan on driving your vehicle to a repair shop ?

Have you tried bleeding the pressure out of the brake system ? Most vehicles with power assist in their brake systems can have the pressure released by pressing the brake pedal several times, until the pedal gets hard. Then you open the master cylinder cap and try to push the piston in slowly. Make sure to not damage the rubber seal around piston.

It can be issue with brake system alignment.Get the brake assembly checked.Something is not right and out of its way causing these problem.----------
Click the help links mentioned below and go with the troubleshooting solutions to confirm what is exactly faulty in your case:-----Click the link :----Car shakes like the wheels are going to fall off http://technoanswers.blogspot.com/2012/11/car-shakes-like-wheels-are-going-to.html
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CAR BRAKE PROBLEMS

It can be issue with master cylinder or the problem is there is still some air there in the system,that has to be bleed.Or else the parts replaced are not aligned properly/.I suggest everything back.

There are few help links mentioned below to troubleshoot the issue.

Click the link below and follow its procedure:-----

All types of brake problems and repairs http://howtobyme.blogspot.com/2011/11/abs-and-service-light-comes-on.html

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Brake Fade Issue? http://whoisbyme.blogspot.in/2012/07/brake-fade-issue.html

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Brake System Troubleshooting? http://technoanswers.blogspot.com/2011/11/brake-system-troubleshooting.html

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Car Brake lines have no pressure? http://schematicsdiagram.blogspot.com/2011/12/car-brake-lines-have-no-pressure.html

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Car Brakes Dragging? http://repairhelpcenter.blogspot.com/2011/12/car-brakes-dragging.html

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Car Brakes grabbing? http://repairhelpcenter.blogspot.com/2011/12/car-brakes-grabbing.html

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Car Brakes Making Noise? http://repairhelpcenter.blogspot.com/2011/12/car-brakes-making-noise.html

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Car Brakes Pulling? http://repairhelpcenter.blogspot.com/2011/12/car-brakes-pulling.html

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Pulsating Brake Pedal? http://repairhelpcenter.blogspot.com/2011/12/pulsating-brake-pedal.html

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Spongy brake pedal? http://repairhelpcenter.blogspot.com/2011/12/spongy-brake-pedal.html

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Hard Brake Pedal? http://repairhelpcenter.blogspot.com/2011/12/hard-brake-pedal.html

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Fading Sinking Brake pedal?

http://whoisbyme.blogspot.in/2012/06/fading-sinking-brake-pedal.html

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Feels Like Brake pedal Pulsating http://repairhelpcenter.blogspot.in/2012/06/feels-like-brake-pedal-pulsating.html
============These will help.Thanks.

"Step by step brake service" is quite vague and could cover a very broad spectrum. There is a LOT involved in brake service, especially on a 2005 Cadillac CTS which has computerized brake control systems. I could help you if you are having trouble with a specific part of performing a brake service, but it is not practical to post all that is involved in brake service for your vehicle. For that type of information, I would recommend that you either purchase a service manual for your vehicle, or subscribe to an online automotive diagnostic and service information system like alldatadiy.com., where for a small anual fee, you will have access to the same PROFESSIONAL service information that I would use if you brought your Cadillac to my shop for repair.

The ABS and Service Traction system may be due to bad sensors or signal reaching the ABS/Traction Control computer. The grinding may be due to uneven or unsmooth rotors, and/or worn out pads or shoes.

I would recommend that the entire braking system be diagnosed at your local dealer or brake service facility.

The exclamation light is an indicator that the transmission has a problem. Take it to a transmission place,for them to diagnose before it's too late.

this means there is a problem in the brake system of the car and u should seek service from a dealer or qualified brake shop. here is a copied section of your owners manual about the light.

Brake system warning
Momentarily illuminates when the
ignition is turned to the RUN
position to ensure the circuit is
functional. Also illuminates if the
parking brake is engaged. If the
brake warning lamp does not illuminate at these times, or remains on
after releasing the parking brake, seek service immediately.
One of the following conditions may exist:
² low brake fluid level in the reservoir.
² Brake force distribution system failure. The ABS light will also
illuminate if this condition is present.

wont start.. service elec brake system displayed

TRANSMISSION FLUID AND TRANSFER CASE FLUIDS ARE SUPPOSED TO BE CHANGED EVERY 60,000 MILES. ENGINE OIL AND FILTER SHOULD BE CHANGED EVERY 3,000 MILES, THESE ARE AUTOMOTIVE INDUSTRY STANDARDS I HAVE WORKED WITH FOR 35 YEARS

A-Service — First visit at approximately 10,000 miles or 1 year, but determined by Flexible Service System; then every 20,000 miles or 2 years.
Interior
· Function check
· Check warning and indicator lamps, illumination and interior lighting
· Check windshield wiper, windshield washer system, headlamp cleaning system
· Reset maintenance service counter in instrument cluster

Wheels, brakes
· Check front brake pads for lining thickness
· Check tires for damage, condition
· Correct tire inflation pressure

Engine compartment
· Change engine oil and filter
· Fluid level checks of the following:
· Engine cooling system, antifreeze and corrosion protection
· Windshield washer system
· Brake system
· Check and correct battery fluid level
· Check battery condition
· Check catch, safety catch and hinges on engine hood for proper operation
Trunk
· Correct tire inflation pressure in spare tire
· Check battery condition

B-Service — First visit at approximately 20,000 miles or one year after previous service, but determined by Flexible Service System; then every 20,000 miles or 2 years.
Services performed:

Interior
· Function check
· Check warning and indicator lamps, illumination and interior lighting
· Check windshield wiper, windshield washer system, headlamp cleaning system
· Reset maintenance service counter in instrument cluster
· Replace dust filter (not applicable to SL-Class)
· Replace combination filter (SL-Class)
· Check parking brake (function test only)

Wheels, brakes
· Check condition/thickness of front and rear brake discs
· Check front and rear brake pads for lining thickness
· Check tires for damage and condition
· Measure tread depth, record in mm
· Correct tire inflation pressure

Underside of Vehicle
· Check for major components leakage
· Check for chafe marks, line routing, damaged components
· Check condition of front axle ball joints and rubber boots
· Check condition of mechanical steering components and rubber boots

Engine Compartment
· Check for major components leakage
· Check for chafe marks, line routing, damaged components
· Check and replenish all fluid levels
· Change engine oil and filter
· Check engine cooling system, antifreeze and corrosion protection
· Check brake system
· Check power steering
· Check Active Body Control
· Check windshield washer system
· Check and correct battery fluid level
· Check battery condition
· Check catch, safety catch and hinges on engine hood for proper operation
· Check condition of poly V-belt

Trunk
· Check battery condition
· Correct tire inflation pressure in spare tire