Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Legacy 2000-2003 Approved Subaru Legacy 2000 2000 Service Manual MECHANISM AND FUNCTION SECTION Body Electrical System MSA5TCD00L18752

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MSA5TCD00L18752


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                           LEGACY (W2260BE_SGML Complete)



6-2      [M10A0]                   MECHANISM AND FUNCTION
10. Cruise Control


10. Cruise Control
A: OPERATION
D The cruise control automatically controls vehicle speed and allows the vehicle to run at a
constant speed without depressing the accelerator pedal.
D The cruise control module compares the actual vehicle speed detected by the speed sensor
(MT) or TCM (AT) with the speed preset in the memory when the set switch was turned on, then
generates a signal according to the difference between the two speeds.
This signal is transmitted to the actuator located at the engine compartment.
The actuator operates the throttle cam, keeping the vehicle speed constant.

B: COMPONENT LOCATION




                                                                                        B6H1299A


      (1) Actuator                                          (5) Clutch switch (MT)
      (2) Inhibitor switch (AT)                             (6) Stop and brake switch
      (3) Command switch                                    (7) Control module
      (4) Main switch




                                                     26
                  LEGACY (W2260BE_SGML Complete)



                                        MECHANISM AND FUNCTION                                                [M10C0]     6-2
                                                                                                             10. Cruise Control


C: CONTROL AND OPERATION
               When actual driving speed is higher than "set" speed, the motor in the actuator operates to move the throttle
Constant speed valve toward the close position by the amount corresponding to the difference between two speeds. When
control        actual driving speed is lower than "set" speed, the motor operates to move the throttle valve toward the
               "open" direction according to the difference.
                   When SET/COAST switch is pressed with main switch ON while vehicle is being driven at a speed greater
                   than 40 km/h (25 MPH), current flows to the actuator. This then causes the clutch in the actuator to engage,
"Set" control
                   operating the motor. The motor moves the throttle valve to the position corresponding to accelerator pedal
                   depression. Thus, vehicle is being driven at constant speed.
                   When SET/COAST switch is turned ON while vehicle is cruising, the motor in the actuator rotates to move
Deceleration
                   the throttle valve toward the "close" direction. This causes the vehicle to decelerate. When the switch is
control
                   turned OFF, vehicle speed is stored in memory and vehicle is constantly driven at that speed.
                   When RESUME/ACCEL switch is turned ON while vehicle is cruising, the motor in the actuator rotates to
Acceleration
                   move the throttle valve toward the "open" direction. This causes vehicle to accelerate. When the switch is
control
                   turned OFF, vehicle speed is stored in memory and vehicle is constantly driven at that speed.
                   When RESUME/ACCEL switch is turned ON after cruise control is released, vehicle speed returns to that
                   speed which was stored in memory just before cruise control was released. However, this occurs only when
                   vehicle is being driven at a speed greater than 32 km/h (20 MPH).
Resume control     In the following cases, however, the set vehicle speed is cleared. Therefore, no resume operation is per-
                   formed.
                   (1) Ignition switch is turned OFF
                   (2) Main switch is turned OFF
                   When any of the following signals is entered, the clutch disengages, cancelling the cruise control.
                   (1) Stop light switch ON signal (Brake pedal depressed) (2) Brake switch OFF signal (Brake pedal de-
Manual cancel
                   pressed) (3) Clutch switch OFF signal (Clutch pedal depressed 



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