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HOMESERVICE MANUALSFORD2010FOCUS S, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 192 (CRUISE CONTROL SYSTEM)DIAGNOSIS AND TESTINGSPEED CONTROLPRINCIPLES OF OPERATION
2010 Ford Focus S, Standard

Principles of Operation

2010 Ford Focus S, StandardSECTION Principles of Operation
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

Pressing and releasing the ON switch turns the speed control system on. Pressing and releasing the SET+ or SET- switch while the vehicle is traveling at the desired speed activates the speed control system.

Tapping the SET+ or the SET- switch while in the set mode respectively, increases or decreases the maintained vehicle speed by 1.6 km/h (1 mph) per tap. If the respective button is pressed and held, the vehicle speed continues to accelerate or decelerate until the button is released.

Pressing and releasing the OFF switch, or switching the ignition switch to the OFF position, turns the speed control system off. Pressing the brake pedal or pressing the CANCEL button puts the speed control system in to the STANDBY mode. Pressing the RESUME button, when the speed control system is in the STANDBY mode causes the vehicle to accelerate to the last set speed. RESUME does not function if the OFF button is pressed, the ignition switch is in the OFF position, or if the current vehicle speed is below the minimum operational speed.

Whenever the speed control system is engaged and active, a speed control icon on the instrument cluster or message center is illuminated.

NOTE: The deactivator switch is provided as an additional safety feature. Normally, when the brake pedal is pressed, an electrical signal is sent from the stoplamp switch to the smart junction box (SJB). Then the SJB sends a message to the powertrain control module (PCM) to deactivate the speed control system. Under increased brake pedal effort, the deactivator switch opens and remove the voltage from the PCM input circuit, releasing the throttle.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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