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Home >> Ford >> 2011 >> Mustang Base, 2D Convertible, Standard >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Anti-Lock Brake System - Vehicle Dynamic System >> Diagnosis And Testing >> Anti-Lock Control >> Pinpoint Tests >> Pinpoint Test O: THE TRACTION CONTROL SYSTEM CANNOT BE DISABLED >> Normal Operation
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Normal Operation

The traction control switch (part of the hazard flasher lamp switch) can be used by the driver to disable and enable the traction control systems. When the ignition is turned to the RUN position the stability/traction control (sliding car) OFF icon in the Instrument Panel Cluster (IPC) illuminates momentarily as a test. Momentarily pressing the switch disables the traction control system. When the traction control system is disabled through the use of the switch, the stability/traction control (sliding car icon) Off illuminates continuously. The conventional ABS system cannot be disabled through the use of the stability/traction control switch. If a MyKey® restricted key is in use with the AdvanceTrac® always-on feature configured to on, the traction control system cannot be disabled. An admin key must be used in order to enable and disable the traction control system.

The traction control switch provides the driver with the ability to turn off the Electronic Stability Control (ESC) system. It allows the driver to select the different modes of the ESC  system, such as Sport mode (if equipped). When the switch is pressed, the stability/traction control (sliding car) OFF icon in the Instrument Panel Cluster (IPC) illuminates steadily, indicating that the traction control system is off. The different modes of the ESC  system can only be selected by starting with the stability/traction control system on. For example, Sport mode cannot be enabled when the system has been turned off. Sport mode can be turned on by pressing the stability/traction control switch twice within one-half second with the brakes applied. Traction control and ESC  can be deactivated by pressing and holding the traction control switch for at least 5 seconds with the brake applied and the vehicle at a standstill. Pressing the switch once from any of the above-mentioned modes will re-enable normal ESC  and traction control operation. The conventional ABS cannot be disabled through the use of the stability/traction control switch. At the start of every ignition cycle, normal ESC  is present regardless of the mode selected on the previous ignition cycle.

This pinpoint test is intended to diagnose the following: 

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