Normal Operation: Notes

The speed control actuator sends and receives signals to the speed control switches through circuits (W) and (G/BR). Voltage to the speed control actuator is supplied through circuit (Y/GY) from the smart junction box (SJB). Ground for the speed control actuator is through circuit (B/G).

Voltage for the speed control servo clutch (internal to the speed control actuator) is supplied by the SJB to the speed control deactivator switch through circuit (V/BR). The speed control deactivator switch (closed when the brake pedal is not applied) then routes the voltage through circuit (V/O) to the speed control actuator. When the brake pedal is firmly pressed, the speed control deactivator switch opens and voltage is no longer supplied to the speed control servo clutch.

When the brake pedal is applied, the stoplamp switch routes voltage to circuit (V/W) to illuminate the stoplamps and send a voltage signal to the speed control actuator. When the speed control actuator receives this input, the speed control actuator goes into a stand-by mode.

The speed control actuator sends a voltage reference signal through circuit (G/W). The speed control system will not engage if circuit (G/W) is grounded, and goes into a stand-by mode if the speed control system has a set speed that it is maintaining. When the transaxle is placed in NEUTRAL (N) (automatic transaxle), the digital transmission range (TR) sensor routes the signal to ground through circuit (B/G). When the clutch is applied (manual transaxle), the clutch pedal position switch (CPP) routes the signal to ground through circuit (Y/V) and then to the powertrain control module (PCM). The PCM provides a ground internally for this circuit.

The speed control actuator receives the speed signal from the PCM through circuit (V/O).