Question about 2002 Oldsmobile Aurora

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Service stability system light comes on

Quite frequently it feels like the brakes are being applied and when that happens the stability active light comes on momentarily. Has anyone experienced a similar problem? The car is a 2002 Aurora.

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  • jlachella May 26, 2009

    I have a 2001 Aurora, and the service stability light comes on also. I took it to the shop and they replace my brakes and my whell balls joints or something like that. He assured me that I would not see that warning again, but within one week the warning light came back on. Do you have any idea what the problem could be?

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I have. Check all connections in the main computer connection box. The plugs that I am referring to are located in the air box in the L/H front corner under the hood (Driver's side). Also make sure that all wires are clean of oil and of the engine on the back side of the engine. My mechanic resecured all connections, cleaned the wires and re-routed them to allow clearance to the engine and the problem has not returned.
Good Luck!

Posted on Apr 30, 2009

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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:
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The position of the steering wheel


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The speed of the vehicle


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The lateral, or sideways acceleration of the vehicle


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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.

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On my 2007 explorer the brake engage when you put the car in drive and the rcs light comes on


Do you mean the RSC light ?
  • Roll stability control (RSC)/interactive vehicle dynamics (IVD)
  • Roll Stability Control (RSC)
    The roll stability control (RSC) system monitors the roll-rate sensor and existing stability assist sensors and calculates if the vehicle may be approaching a situation where rollover is probable. If such a situation exists, the RSC system applies preemptive action. When activated, the RSC system adjusts the brake torque at specific wheels in response to direct measurement of the vehicle roll motion. By adjusting brake torque, the system can reduce the cornering forces and, therefore, the total roll moment acting on the vehicle. Systems with RSC have an additional roll-rate sensor located within the sensor cluster and additional programming within the ABS module to help control the vehicle during sudden maneuvers.
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    SERVICE STABILITY SYS
    Refer to ABS Description and Operation in Antilock Brake System ! You need to take it an have DTC'S diagnostic trouble codes read ! That will point you to a diagnostic path !
    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 VSES is activated when the EBCM determines that the desired yaw rate does not match the actual yaw rate as measured by the yaw rate sensor.
    The desired yaw rate is calculated from the following parameters:
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    The lateral, or sideways acceleration of the vehicle

    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 bumpy roads 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.
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    Service Stability System Message The message center displays the service stability system message when any one of many VSES-disabling DTCs is set. The EBCM sends a serial data message to the IPC requesting this display.
    It means there is a problem an till you get it fixed the stability control system is disabled ! ( EBCM ) electronic brake control module Has detected a problem an set a DTC - diagnostic trouble code in it's memory an had the message displayed !
    Vehicle Stability Enhancement System (VSES)
    The vehicle stability enhancement system (VSES) provides added stability during aggressive maneuvers. Yaw rate is the rate of rotation about the vehicle's vertical axis. The VSES is activated when the electronic brake control module (EBCM) determines that the desired yaw rate does not match the actual yaw rate as measured by the yaw rate sensor.
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    ?€¢
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    It

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    Stability control activates when the controller senses a discrepancy between your intended path and the direction the vehicle is travelling. StabiliTrak selectively applies braking pressure at any one of the vehicle's brakes to help guide the vehicle in the direction which you are steering.


    When you first start your vehicle and begin to drive away, the system performs several diagnostic checks to insure there are no problems. You may hear or feel the system working. This is normal and does not mean there is a problem with your vehicle. If driving conditions delay system initialization, the STABILITRAK NOT READY message may be displayed. If this is the case, your vehicle does not need servicing.


    When the StabiliTrak system is both on and actively controlling the stability of the vehicle, the StabiliTrak light will blink for the duration of the event.


    You may also feel or hear the system working. This is normal.
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