General Information

CAUTION: Do not use the cruise control on slippery roads, steeply graded roads, or in heavy traffic Of heavy or varying volume. Failure to follow these CAUTIONS could possibly cause you to loose control of the vehicle and result in damage to the vehicle and personal injury.

Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions. The cruise control allows the driver to maintain a constant speed of 25 mph (40 km/h) or higher without depressing the accelerator. Any steep grades up or down may cause variations in the selected speeds. The cruise control system performs the following functions:
^ Cruising
^ Coasting
^ Resuming Speed
^ Accelerating

The cruise control system consists mainly of the following components:




^ The cruise control servo assembly (6)
^ The cruise control release and Clutch Pedal Position (CPP) switch (manual transmission only)




^ The cruise control mode switch (RESUME/ ACCEL, COAST/SET, and CANCEL) (1)




^ The main cruise control switch (CRUISE CTRL) (6)
^ The Powertrain Control Module (PCM)
^ The transmission range switch (automatic transmission only)
^ The stoplamp switch
^ The Vehicle Speed Sensor (VSS)


The cruise control servo assembly allows the system to control and maintain the desired vehicle speed. The functions of the cruise control system are received and acted upon by the cruise control module. The cruise control module is incorporated into the cruise control servo assembly. The cruise control module sends a command through the cruise control servo to engage the system when the module receives one of the following signals from the cruise control mode switch:
^ Cruise
^ Coast
^ Resume
^ Accelerate

When a command is received by the servo, the Direct Current (DC) servo turns a worm gear. The turning of the worm gear moves the accelerator cable in order to adjust the throttle angle. The DC servo and the worm gear connect mechanically only when a magnetic clutch, situated between the DC servo and the worm gear, energizes.

The system is disengaged when the cruise control module sends a command to the cruise control servo. The cruise control module receives a cancel signal from any of the following components:
^ The stoplamp switch




^ The main cruise control switch (CRUISE CTRL) (6)




^ The cruise control mode switch (RESUME/ ACCEL, COAST/ SET, and CANCEL) (1)
^ The transmission range switch (automatic transmission only)
^ The Clutch Pedal Position (CPP) switch (manual transmission only)

Upon receiving a cancel signal, the cruise control servo assembly de-energizes the magnetic clutch. When the magnetic clutch de-energizes, the DC servo motor and the worm gear mechanically disconnect. The throttle returns to the idle position.