Question about 2000 BMW Z3

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Dsc light on & brakes grab

Was told I need to replace the rotation rate sensor & the Lateral acclerator sensor. can't find anything on these sensors.

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These car also have a pad sensor. and will cause this problem and if the breaks are thin they need replacement. that would be the cheapest fix.

Posted on Aug 28, 2008

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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

2010 chevy impala service stabilitrakwarning keeps coming on


You should have it check for DTC'S diagnostic trouble codes .
SERVICE STABILITRAK is part of the ABS control module . EBCM - electronic brake control module . Could be a sensor problem , EBCM , yaw sensor an a couple other ones .
Vehicle Stability Enhancement System (VSES)
The vehicle stability enhancement system (VSES) adds an additional level of vehicle control to the electronic brake control module (EBCM).
Yaw rate is the rate of rotation about the vehicle's vertical axis. The lateral accelerometer measures the sideways acceleration of the vehicle. The VSES is activated when the EBCM determines that the desired yaw rate and lateral forces do not match the actual attitude of the vehicle.
The desired attitude of the vehicle are calculated from the following inputs:
?€¢
The position of the steering wheel


?€¢
The speed of the vehicle


?€¢
The lateral, or sideways acceleration of the vehicle


?€¢
Yaw rate of the vehicle


?€¢
Master cylinder brake pressure

The difference between the desired yaw rate and the actual yaw rate is the yaw rate error, which is a measurement of oversteer or understeer. If the yaw rate error becomes too large, the EBCM attempts to correct the vehicle's yaw motion by applying differential braking to the appropriate wheel. The amount of differential braking applied to the left or right front wheel is based on both the yaw rate error and side slip rate error.
The VSES activations generally occur during aggressive driving, in turns, or on poor road conditions, without much use of the accelerator pedal. When braking during VSES activation, the pedal pulsations feel different than the ABS pedal pulsations. The brake pedal pulsates at a higher frequency during VSES activation.

Jun 07, 2016 | 2010 Chevrolet Impala LT

1 Answer

Have new brakes brake sensors all the way around new rotors also abs stability traction lights are still on how do i turn them off


Have you had the car diagnosed ? Need to have vehicle hooked up to professional type scan tool .Check for DTC'S - diagnostic trouble codes . Brakes & rotors have nothing to do with electronics of the Anti-lock brakes an stability an traction control systems .Bad brakes & rotors will turn on the red brake light. The brake sensors as you call them are really wheel speed sensors . There is a EBCM - electronic brake control module , wheel speed sensors ,Plus some other thing's.
This vehicle is equipped with the DBC7.4 antilock braking system.
The vehicle is equipped with the following braking systems:
?€¢
Antilock Brake System (ABS)


?€¢
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.


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.


-
Brake pressure sensors--The EBCM contains 2 brake pressure sensors that monitor applied master cylinder pressure to the wheels. The EBCM uses the brake pressure inputs to enhance VSES.


-
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.


?€¢
Brake pedal position (BPP) sensor--The EBCM receives a serial data message from the body control module (BCM) to indicate that the brake pedal is applied.


?€¢
Yaw rate sensor (w/JL4)--The EBCM uses the yaw rate sensor to determine the rate of rotation along the vehicle's vertical axis. The yaw rate sensor is packaged with the lateral accelerometer as a single component.


?€¢
Lateral accelerometer (w/JL4)--The EBCM uses the lateral accelerometer to determine the sideways acceleration of the vehicle. The lateral accelerometer is packaged with the yaw rate sensor as a single component.


?€¢
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 vehicle can set multiple DTC'S
DTC C0035-C0052 DTC C0111-C0120 DTC C0121 DTC C0131-C0139 DTC C0163-C0165 DTC C0179 DTC C0186 or C0187 DTC C0196 DTC C0220-C0229 DTC C0241 or P0856 DTC C0242 DTC C0244 or P1689 DTC C0252 DTC C0253 or C0254 DTC C0281 or C081 DTC C0460 or C0461 DTC C0550 DTC C0561 DTC C0870 DTC C0899 DTC C0900 DTC C1100 DTC C1101
Your best bet is to take it to a qualified repair shop ! You have no idea of the complexity of your vehicle .

May 15, 2016 | 2005 Pontiac Montana SV6

2 Answers

Adding stabilitrak / traction control


You would need to replace the EBCM - electronic brake control module an add the yaw rate / lateral acceleration sensor . An add the steering wheel speed position sensor plus find the wiring harness that connects these Extra parts to the EBCM . You can look an see if Yaw Rate and Lateral Acceleration Sensor (JL4)
Under the front floor console compartment, on the floor , . It could be more trouble then is worth >

Dec 27, 2015 | 2007 Chevrolet Uplander

1 Answer

WHAT IS YAW RATE SENSOR? WHERE IS


The yaw rate sensor measures the relative vehicle motion about the vertical axis through its center of gravity. It is usually located inside the Sensor Cluster located in the middle of the vehicle somewhere , under the console .
The sensor cluster (also called the accelerometer) consists of the yaw rate sensor, roll rate sensor (if equipped with roll stability control), lateral accelerometer and longitudinal accelerometer. The lateral accelerometer measures the acceleration which corresponds to the force involved when the vehicle slides sideways. This acceleration has 2 forms. The first is the centrifugal acceleration which is generated when the vehicle travels around in a circle. The second is the acceleration due to gravity. On level ground there is no contribution from this acceleration. However, if the vehicle is parked sideways on a bank or incline, the sensor measures some lateral acceleration due to gravity even though the vehicle is not moving.

Oct 15, 2015 | Cars & Trucks

1 Answer

I have a 2007 they suburban taho and the stabill track light is on


The Stability System is part of the anti lock brakes ! The place to start is
Diagnostic Starting Point - Antilock Brake System
Begin the system diagnosis with Diagnostic System Check - Vehicle .The Diagnostic System Check will provide the following information:
?€¢
The identification of the control modules which command the system


?€¢
The ability of the control modules to communicate through the serial data circuit


?€¢
The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
This Is going to be Greek to you probably ! This is where a up scale scan tool is needed , or a factory one ! Your going to need to have vehicle scanned for DTC'S diagnostic trouble codes ! Is the ABS light on as well ?
A sample of DTC'S
DTC C0186 00: Lateral Accelerometer Circuit

DTC C0186 5A: Lateral Accelerometer Circuit Erratic
DTC C0196 00: Yaw Rate Circuit

DTC C0196 5A: Yaw Rate Circuit Erratic
DTC C0252 00: VSES Sensor Uncorrelated
The Vehicle Stability Enhancement System (VSES) is activated by the electronic brake control module (EBCM) and calculates the desired yaw rate and comparing it to the actual yaw rate input. The desired yaw rate is calculated from measured steering wheel position, vehicle speed, and lateral acceleration. The difference between the desired yaw rate and actual yaw rate is the yaw rate error, which is a measurement of oversteer or understeer. If the yaw rate error becomes to large, the EBCM will attempt to correct the vehicles yaw motion by applying differential braking to the left or right front wheel.
This is a problem you should take to the dealer or a ASE certified repair shop ! Or you can try to reset the system by disconnecting the battery cables an touching the cable ends together for 60 seconds ! But if there is a real fault in the system ( bad sensor ) The light will come back on ! Maybe not right away ! A couple of days or weeks etc....
This

Aug 04, 2015 | Cars & Trucks

1 Answer

Sir,help me I have 2004 Toyota sienna van XLE ..my engine light was . c1201 ,c1223, c1224, u0123 u0124 u0126 P0430 P0420 Thanks Mr felix


c1223 Malfunction in ABS control system
c1201 Brake Boost Sensor Circuit Range/Performance
c1224 Open or short circuit in NE signal circuit
u0123 Lost Communication With Yaw Rate Sensor Module
u0124 Lost Communication With Lateral Acceleration Sensor Module
u0126 Lost Communication With Steering Angle Sensor Module
p0430 Catalyst System Efficiency Below Threshold Bank 2
p0420 Catalyst System Efficiency Below Threshold Bank 1

you have major problems is it worth fixing???,its gonna be quite a bit

Jun 02, 2015 | Toyota Cars & Trucks

4 Answers

Why is my abs light on in my 03 chevy? and on the passanger side the front tire is roaring really bad when i drive, please help


Ok, there are sensors on your front wheel hubs. This could easily cause the abs light to turn on. The loud noise could easily be your wheel hub going bad. Easiest way to check, jack up the front of the truck, grab tire, shake back and forth and up and down. Same amout of play each way? You're wheel hub is bad.......

Aug 27, 2010 | 2003 Chevrolet Tahoe

1 Answer

Yellow DSC and Brake light on... recently changed brake pads


Abs and dsc are related and with the light on these won't work. It is possible that you need to go back to where the work was done to look this over.

Jun 07, 2009 | 2003 BMW 325

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