Scan Tool Data Definitions (Cruise Control)

WARNING: This page is about a different car, the 2006 Pontiac Torrent and 2006 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

The Scan Tool Data Definitions contains a brief description of all cruise control related parameters available on the scan tool.

Cruise Control Active: The scan tool displays Yes or No. The powertrain control module (PCM) determines the current status of cruise control operation. An active cruise control system is displayed as On.
Cruise Control Mode Signal: The scan tool displays 0-5 volts. The PCM monitors the voltage of the cruise control set/coast and resume/accel switch signal circuit. In order to determine the status of the cruise control switch. The list values are voltage from a known good cruise control switch. Off = 0.0 volts/On = 0.5 volts/Resume = 1.3 volts/Set = 2.6 volts.
Cruise Disengage (1-6) History: The scan tool displays the last 6 reasons why the Cruise Control System was disengaged. Refer to the Scan Tool Data Definitions (Disengage History) for descriptions.
Cruise On/Off Switch: The scan tool displays On or Off. The PCM monitors the cruise control set/coast and resume/accelerate switch signal circuit. A closed switch is displayed as Yes.
Cruise Resume/Accel: The scan tool displays On or Off. The PCM monitors the cruise control set/coast and resume/accelerate switch signal circuit. A closed switch is displayed as On. The cruise control On/Off switch must be switched ON in order to correctly view the Cruise Resume/Accel parameter.
Cruise Set/Coast: The scan tool displays On or Off. The PCM monitors the cruise control set/coast and resume/accelerate switch signal circuit. A closed switch is displayed as On. The cruise control On/Off switch must be switched ON in order to correctly view the Cruise Set/Coast parameter.
Engine Speed: The scan tool displays 0 to 9,999 RPM. The PCM monitors the CKP signal circuit in order to determine the engine RPM.
Ignition 1 Signal: The scan tool displays 6 Volts to 18 Volts. The PCM monitors the Ignition 1 signal circuit in order to determine the system voltage.
Reduced Engine Power: The scan tool displays Active or Inactive. When the PCM detects that a malfunctioning throttle actuator control (TAC) condition exists, the scan tool displays Active.
Stoplamp Pedal Switch: The scan tool displays Applied or Released. The PCM monitors the brake/cruise release switch signal circuit. An open switch is displayed as Applied.
Stoplamp Pedal Switch Signal: The scan tool displays Volts. The PCM monitors the voltage of the stop lamp pedal switch signal circuit.
TAC/PCM Communication Signal: The scan tool displays Ok or Fault. The PCM uses the universal asynchronous receiver transmitter (UART) serial data circuit in order to communicate with the throttle actuator control (TAC) module. A malfunction in the UART serial data circuit is displayed as Fault.
TAC Stoplamp Pedal Switch: The scan tool displays Applied or Released. The TAC module monitors the stoplamp pedal switch signal circuit. A closed switch is displayed as Applied.
TAC Vehicle Speed Signal: The scan tool displays Ok or Fault. The TAC module monitors the vehicle speed signal circuit. A malfunction in the vehicle speed signal circuit is displayed as Fault.
Traction Control Status: The scan tool displays Active or Inactive. When the PCM detects that a traction control condition exists, the scan tool displays Active.
Vehicle Speed Circuit History: The scan tool displays Ok/Open/Short/Invalid State. The PCM detects and determines the history of the vehicle speed circuit.
Vehicle Speed Circuit Status: The scan tool displays Ok/Open/Short. When the PCM detects that a malfunction in the vehicle speed signal circuit exists, the scan tool will display Fault or Invalid State.
Vehicle Speed Sensor: The scan tool displays 0 to 150 km/h (0 to 93.2 mph). The PCM monitors the vehicle speed sensor signal circuit in order to calculate the vehicle speed for display.