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Eric
Eric, Automotive Repair Shop Manager
Category: Chrysler
Satisfied Customers: 32544
Experience:  20+ years experience as automotive store manager and technician.
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Chrysler 200: does a chrysler shift into neutral when abs brakes

Customer Question

does a chrysler shift into neutral when abs brakes are applied with force in a near accident
Submitted: 2 years ago.
Category: Chrysler
Expert:  Eric replied 2 years ago.
HI,

Part of the ABS functions is the traction control and when the ABS is applied the traction control may upshift the transmission if wheel slip is severe enough -below gives an indepth explanation

2014 Chrysler 200 V6-3.6L

TRACTION CONTROL

NOTE:
The Electronic Stability Control (ESC) may also be referred to as Electronic Stability Program (ESP) depending on the vehicle model year and configuration. Certain components may also reference ESP, ESC, or use the traction control symbol.

Traction control systems sense impending wheel spin based on a model of the rate of change of wheel speed under normal traction conditions. The All-Speed Traction Control uses signals from the same wheel speed sensors as ABS to determine when to apply the brakes to one or more wheels and when to reduce engine torque output using the electronic throttle control (ETC) to prevent wheel slip during acceleration. Throttle control makes the vehicle less reliant on brake application alone to maintain traction, increasing the operating speed range and more closely modulates speed, resulting in smoother operation. With All-Speed Traction Control reducing engine torque as well as applying the brakes, it is possible to achieve almost seamless torque application at the wheels.

If the wheel slip is severe enough to require throttle intervention, All-Speed Traction Control will reduce engine torque and sometimes upshift the transmission to avoid the condition.
In milliseconds, All-Speed Traction Control interrogates the engine control system to determine the current torque output, determines how much the torque output the current conditions will allow, and signals this requirement to the engine control system, which reduces the torque by partially closing the throttle. With execution of the torque reduction, the brake system reduces brake pressure to make the transition smooth, while maintaining forward progress. By reducing engine power, braking effectiveness is maintained and the system can operate throughout the normal vehicle speed range. That is why the system is identified as providing "all-speed" traction control.

The traction control system is enabled at each ignition cycle. It may be turned off by depressing the ESC OFF switch button. The ESC/TCS function indicator lamp illuminates immediately upon depressing the button. Pressing this button again or turning off and restarting the vehicle will enable the traction control system.


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