The cruise control system maintains the desired vehicle speed under normal driving conditions. The cruise control system has the following capabilities:
| • | CRUISE |
| • | RESUME SPEED |
| • | ACCELERATE |
| • | COAST |
Depressing the SET and the R/A switches simultaneously will cancel the cruise control operation. Canceling the cruise control operation will not cancel the speed memory.
The cruise control system contains the following components:
| • | The cruise control switch |
| • | The Throttle Actuator Control (TAC) module |
| • | The stoplamp switch |
The TAC monitors the vehicle speed and operates the stepper motor. In response to the TAC, the stepper motor moves a connecting strap that attaches to the cruise control cable. The cable moves the throttle linkage in order to vary the throttle position and maintain the desired speed.
The TAC contains a low speed limit which will prevent the system from engaging below a minimum speed of about 25 mph.
The cruise control switch is on the turn signal lever and controls the TAC. With the ignition switch in the RUN position, voltage is supplied to the cruise control switch from the CRUISE fuse through CKT 41 (ORN). When the cruise control switch is in the ON position, power is supplied to the TAC, cavity 14, through CKT 397 (GRY). Ground is established for the TAC through the Powertrain Control Module (PCM).
With the SET button activated, voltage is applied to the TAC, cavity 4, through CKT 84 (DK BLU). The TAC will maintain the speed the vehicle has reached only when the SET button is released.
With the R/A (Resume/Accelerate) button activated, voltage is applied to the TAC, cavity 5, through CKT 87 (GRY/BLK). This button will only resume speed after an initial speed has been set using the SET button. With the cruise control system on, this button will also accelerate the speed of the vehicle. When the switch is released, the system will maintain the new speed.
