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Proportioning valve diagram

My 99 GT valves are both in the down position, which is why I have no brakes in either system. Does the ABS module control these valves? How do I reset this? Cannot drive car,only manual braking with stick. And 30 miles from nearest garage.

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6ya6ya
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Posted on Jan 02, 2017

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askjhuber
  • 59 Answers

SOURCE: Where can I find a brake proportioning valve for my 97 S-10?

When people tell me they hate there ABS, alot of people who pull trailer do. I tell them just to pull the fuse this will stop them completely. Yeah theres a light ont he dash but that can alos be delt with by removing the bulb for it. But int he long run just pulling the fuse is quick and Free.

Posted on May 17, 2009

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  • 599 Answers

SOURCE: the ABS/proportioning valve is not working.

these trucks need a seperate bleed procedure for ABS you need a scanner to put it into this bleed mode,hope this helps if not get back to me and we'll go from there. please rate my fix as i strive to be the best

Posted on May 19, 2009

juncro
  • 467 Answers

SOURCE: Proportioning valve leaks brake fluid.

yes you must change same, in my experience i change it

Posted on Jul 31, 2009

  • 178 Answers

SOURCE: How to bleed brakes on 98 regal, I changed rear

sometimes you can tap on the proportioning valve while someone pumps the brake if nothing breaks loose you may have to replace the valve.

Posted on Aug 07, 2010

firediv
  • 3 Answers

SOURCE: Proportioning valves in down position

Did you open brake system lines? If you did they need power bled. If not sometime proportions do go bad.

Posted on Jul 13, 2013

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1 Answer

Can leaky shocks on a 2006 Cadillac DTS cause the traction control light to come on


If the light is on there are DTC'S - diagnostic trouble code's stored in ABS - anti - lock brakes computer . Have codes checked first , something wrong with electrical part of antilock brakes , I know, what does ABS have to do with traction control ! traction control is a function of the ABS control module . Leaking shocks ? clarify , air shocks etc.... Before you start guessing , have it check for codes .
This vehicle is equipped with the TRW 440 V antilock braking system.
The vehicle is equipped with the following braking systems:
?€¢
Antilock Brake System (ABS)


?€¢
Engine Drag Control (EDC)


?€¢
Dynamic Rear Proportioning (DRP)


?€¢
Traction Control System (TCS)


?€¢
Vehicle Stability Enhancement System (VSES) (w/JL4)

The following components are involved in the operation of the above systems:
?€¢
Electronic brake control module (EBCM)--The EBCM controls the system functions and detects failures.


?€¢
Electronic brake control module (EBCM)--The EBCM controls the system functions and detects failures.


The EBCM contains the following components:


-
System relay--The system relay is energized when the ignition is ON and no ABS DTCs are present. It supplies battery positive voltage to the solenoid valves and pump motor.


-
Vent tube--The vent tube, located in the EBCM connector, is an opening to the internal cavity of the EBCM. It allows ventilation of the EBCM internals.


?€¢
Brake pressure modulator valve (BPMV)--The BPMV contains the hydraulic valves and pump motor that are controlled electrically by the EBCM. The BPMV uses a 4 circuit configuration with a diagonal split. The BPMV directs fluid from the reservoir of the master cylinder to the left front and right rear wheels and fluid from the other reservoir to the right front and left rear wheels. The diagonal circuits are hydraulically isolated so that a leak or malfunction in one circuit will allow continued braking ability on the other.


Important: There is a rubber isolator located under the BPMV and on the mounting studs. The rubber isolators protect the BPMV and the EBCM from vehicle vibrations.


?€¢
The BPMV contains the following components:


-
Pump motor


-
Inlet valves (one per wheel)


-
Outlet valves (one per wheel)


-
Master cylinder isolation valves (one per drive wheel)


-
Prime valves (one per drive wheel)


?€¢
Wheel speed sensors (WSS)--As the wheel spins, the wheel speed sensor produces an AC signal. The EBCM uses this AC signal to calculate wheel speed. The wheel speed sensors are replaceable only as part of the wheel hub and bearing assemblies.


?€¢
Traction control switch--The TCS is manually disabled or enabled using the traction control switch.


?€¢
Stoplamp switch--The EBCM uses the stoplamp switch as an indication that the brake pedal is applied.


?€¢
Lateral accelerometer sensor (w/JL4)--The EBCM uses the lateral accelerometer sensor as an indication of the lateral acceleration of the vehicle.


?€¢
Yaw rate sensor (w/JL4)--The EBCM uses the yaw rate sensor as an indication of the yaw rate of the vehicle.


?€¢
Steering wheel position sensor (SWPS) (w/JL4)--The EBCM uses the SWPS as an indication of the position and rotation of the steering wheel.


This systems are very complex , your best bet would be to take it to a qualified repair shop .

Oct 18, 2016 | Cadillac Cars & Trucks

1 Answer

Can you help with multiple electrical issues??


This vehicle is equipped with the BOSCH 5.3 antilock braking system.
The vehicle is equipped with the following braking systems:
• Antilock Brake System (ABS)
• Dynamic Rear Proportioning (DRP)
• Traction Control System (ETS) (w/NW7)
• Traction Control System (TCS) (w/NW9)
• Vehicle stability enhancement system (VSES) You need to have vehicle checked for DTC'S diagnostic trouble codes , do you know what they are ? The traction control , ABS an stability control are all a function of the electronic brake control system .It also seams the power steering is controlled by the Antilock brake system.The Magnasteer® is controlled through the ABS module and varies the torque by adjusting the current flow through the actuator.
Your best place to start would be to have ABS module scanned for DTC'S . Codes would point you in right diagnostic direction .
The following components are involved in the operation of the above systems:
• Electronic Brake Control Module (EBCM), The EBCM controls the system functions and detects failures.
The EBCM contains the following components:
- System Relay, The system relay is energized when the ignition is ON and no ABS DTCs are present. It supplies battery positive voltage to the solenoid valves and pump motor.
- Vent Tube, The vent tube, located in the EBCM, is an opening to the internal cavity of the EBCM. It allows ventilation of the EBCM internals.
• Brake Pressure Modulator Valve (BPMV), The BPMV contains the hydraulic valves and pump motor that are controlled electrically by the EBCM. The BPMV uses a 4 circuit configuration with a diagonal split. The BPMV directs fluid from the reservoir of the master cylinder to the left front and right rear wheels and fluid from the other reservoir to the right front and left rear wheels. The diagonal circuits are hydraulically isolated so that a leak or malfunction in one circuit will allow continued braking ability on the other.

Mar 01, 2016 | 2005 Pontiac Grand Prix

1 Answer

Where is ABS fuse located?


In the under hood fuse/relay box.

ETC / ECM - 15amp

ABS - 60amp

SEO B2 30 amp

no B+ at any of these fuse's check Ignition 1 relay .


This vehicle is equipped with the Bosch 5.3 antilock braking system.



The vehicle is equipped with the following braking systems:







?€¢





Antilock Brake System (ABS)














?€¢





Dynamic Rear Proportioning (DRP)















?€¢





Traction Control System TC2 (w/NW9)








The following components are involved in the operation of the above systems:







?€¢





Electronic Brake Control Module (EBCM) - The EBCM controls the system functions and detects failures.

















The EBCM contains the following components:
















-





System Relay - The system relay is energized when the ignition is ON and no ABS DTCs are present. It supplies battery positive voltage to the solenoid valves and pump motor.
















-





Vent Tube - The vent tube, located in the EBCM connector, is an opening to the internal cavity of the EBCM. It allows ventilation of the EBCM internals.















?€¢





Brake Pressure Modulator Valve (BPMV) - The BPMV contains the hydraulic valves and pump motor that are controlled electrically by the EBCM. The vehicle is equipped with traction control The BPMV uses a 4 circuit configuration with a front/rear split. The BPMV directs fluid from the reservoir of the master cylinder to the front wheels and fluid from the other reservoir to the rear wheels. The circuits are hydraulically isolated so that a leak or malfunction in one circuit will allow continued braking ability on the other.







Oct 31, 2015 | 2003 Hummer H2

2 Answers

How to diagnose an ABS problem


You need to find out what code is stored in the ABS control module, if the light is on there is a DTC an the system is disabled ! Don't know if auto part stores can pull ABS codes or not , You'll have to check it out . Personally I say take it to a ASE certified repair shop if you don't know anything about anti lock brakes !
?€¢
Electronic Brake Control Module (EBCM) -- The EBCM controls the system functions and detects failures.


The EBCM contains the following components:


?€¢
System Relays -- The inlet and outlet solenoid relay is energized when the ignition is ON and no ABS DTCs are present. It supplies battery positive voltage to the solenoid valves, the pump motor relay is energized and supplies battery positive voltage to the pump motor when ABS is activated.


?€¢
Brake Pressure Modulator Valve (BPMV) -- The BPMV contains the hydraulic valves and pump motor that are controlled electrically by the EBCM. The BPMV uses a 4 circuit configuration with a diagonal split. The BPMV directs fluid from the reservoir of the master cylinder to the left front and right rear wheels and fluid from the other reservoir to the right front and left rear wheels. The diagonal circuits are hydraulically isolated so that a leak or malfunction in one circuit will allow continued braking ability on the other.


This system can store 10-12 DTC's for something simple as wheel speed sensors to wiring problems to a malfunction of the EBCM . Some of these problems you would need a professional type scan tool ! The antilock brake system on your vehicle is the
BOSCH 8.0 antilock braking system
The vehicle is equipped with the following braking systems:
?€¢
Antilock Brake System (ABS)


?€¢
Dynamic Rear Proportioning (DRP)


?€¢
Traction Control System (TCS) (w/NW7)

The following components are involved in the operation of the above systems:
?€¢
Electronic Brake Control Module (EBCM) -- The EBCM controls the system functions and detects failures.


The EBCM contains the following components:


?€¢
System Relays -- The inlet and outlet solenoid relay is energized when the ignition is ON and no ABS DTCs are present. It supplies battery positive voltage to the solenoid valves, the pump motor relay is energized and supplies battery positive voltage to the pump motor when ABS is activated.


?€¢
Brake Pressure Modulator Valve (BPMV) -- The BPMV contains the hydraulic valves and pump motor that are controlled electrically by the EBCM. The BPMV uses a 4 circuit configuration with a diagonal split. The BPMV directs fluid from the reservoir of the master cylinder to the left front and right rear wheels and fluid from the other reservoir to the right front and left rear wheels. The diagonal circuits are hydraulically isolated so that a leak or malfunction in one circuit will allow continued braking ability on the other.


Important: There is a rubber isolator located under the BPMV and on the mounting studs. The rubber isolators protect the BPMV and the EBCM from vehicle vibrations.


?€¢
The BPMV contains the following components:


-
Pump Motor


-
Inlet Valves (one per wheel)


-
Outlet Valves (one per wheel)


?€¢
Wheel Speed Sensors (WSS) -- As the wheel spins, the wheel speed sensor produces an AC signal. The EBCM uses this alternating current signal to calculate wheel speed. The wheel speed sensors are replaceable only as part of the wheel hub and bearing assemblies.


?€¢
Traction Control Switch (w/NW7) -- The TCS is manually disabled or enabled using the traction control switch.


?€¢
Stop Lamp Switch - The EBCM uses the stop lamp switch as an indication that the brake pedal is applied

Sep 21, 2015 | 2006 Saturn ION

1 Answer

I removed my abs system on my 95 gt mustang and now no brakes


You can not remove the ABS hydraulic control module from cars that come with it. Cars without ABS have a device called a proportioning valve. This valve is designed to supply 70% of the stopping power to the front brakes and the remaining 30% to the rear. Without this valve, the rear brakes would constantly be locking up. On cars with ABS, that valve is built into the ABS unit. Your only other option is to obtain and install the master cylinder and proportioning valve from the version of your car that came without ABS. FYI, some cars come with ABS as standard equipment, so there would be no variant without ABS. It's to late for your current ABS unit, however you need to know that you are supposed to flush your brake fluid every two years. Failure to do this causes a build up of moisture in the fluid. Automotive brake fluids absorb moisture from the air. The system is not totally sealed. The cap on the fluid reservoir has a tiny vent hole in it, needed for the fluid to flow into and out of the master cylinder. This is how the moisture gets absorbed. This moisture corrodes the inside of all the hydraulic parts of the system. Brake fluid when new is either clear or the color of ginger ale [pale yellow] as it ages, it darkens. After two years, it starts to turn brown. It will be totally black after 4 to 5 years. Failure to flush the fluid every two years damages your brake's hydraulic system components. Flush the fluid every two years and NONE of the hydraulic components will go bad.
Charlie

Apr 20, 2014 | 1995 Ford Mustang

1 Answer

Proportioning valves in down position


Did you open brake system lines? If you did they need power bled. If not sometime proportions do go bad.

Jul 13, 2013 | 1999 Pontiac Sunfire

2 Answers

Brake line on chevy silverado broken,need diagram to follow line back to box in middle of truck


Brake line diagrams dont exist like wiring diagrams do. If your truck has ABS, that's the ABS controller, and if not it's just the proportioning/metering valve.

Apr 27, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

How to bleed brakes on 98 regal, I changed rear brake lines but I don't think fluid is going thru the proportioning valve or ABS. I am used to the older brakes ( 70's and down.)


sometimes you can tap on the proportioning valve while someone pumps the brake if nothing breaks loose you may have to replace the valve.

Aug 07, 2010 | 1998 Buick Regal

1 Answer

Brake fluid is not getting to the rear brakes. The master cylinder is working. I do not know if the ABS is working, probably not since the ABS warning light is on in the dash. Could the proportioning valve...


there more than likely air in the abs system and there should be bleeders on the abs module try bleeding the abs system first then once you have good fluid there then bleed the rear brakes again

Oct 18, 2009 | 2000 Pontiac Grand Am GT

1 Answer

The ABS/proportioning valve is not working.


these trucks need a seperate bleed procedure for ABS you need a scanner to put it into this bleed mode,hope this helps if not get back to me and we'll go from there. please rate my fix as i strive to be the best

May 19, 2009 | 1997 Chevrolet Blazer

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