Scan Tool Data Definitions Cruise Control

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

BPP Circuit Signal: The scan tool displays Applied or Released. The electronic brake control module (EBCM) monitors the brake pedal position (BPP) circuit signal. The engine control module (ECM) receives a GMLAN serial data message from the EBCM indicating the status of the BPP circuit signal.

BPP Signal: The scan tool displays Applied, Released or Invalid. The electronic brake control module (EBCM) monitors the status of the brake pedal position (BPP) sensor. The ECM receives a GMLAN serial data message from the EBCM indicating the status of the BPP signal.

Cruise Control Active: The scan tool displays Yes or No. The ECM determines the current status of cruise control operation. An active cruise control system is displayed as Yes.

Cruise Control Switch: The scan tool displays On, Off, Set, Resume or Error. The BCM monitors the signal circuit of the cruise control switch.

Cruise Disengage (1 - 8) History: The scan tool displays the last 8 reasons why the cruise control system was disengaged. Refer to the Scan Tool Data Definitions (Disengaged History) for descriptions.

Cruise Inhibited: The scan tool displays Yes or No. The ECM determines when the conditions for inhibiting the cruise control system exists. An inhibited cruise control system is displayed as Yes.

Cruise Inhibit Reason: The scan tool displays the reason that the cruise control is inhibited as detected by the ECM.

Cruise On/Off Switch: The scan tool displays On or Off. The ECM monitors the signal circuit of the cruise control switch. A closed switch is displayed as On.

Cruise Resume/Accel. Switch: The scan tool displays On or Off. The ECM the monitors the cruise control 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. Switch parameter. The BCM sends a GMLAN message to the ECM indicating the status of the resume/accel switch.

Cruise Resume/Accel. Switch: The scan tool displays Active, Inactive or Invalid. The BCM the monitors the cruise control 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. Switch parameter. The BCM sends a GMLAN message to the ECM indicating the status of the cruise resume/accel switch.

Cruise Set/Coast Switch: The scan tool displays On or Off. The BCM the monitors the cruise control 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 Switch parameter. The BCM sends a GMLAN message to the ECM indicating the status of the cruise set/coast switch.

Cruise Set/Coast Switch: The scan tool displays Active, Inactive or Invalid. The BCM the monitors the cruise control 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 Switch parameter. The BCM sends a GMLAN message to the ECM indicating the status of the cruise set/coast switch.

Engine Speed: The scan tool displays 0 to 9,999 RPM. The ECM monitors the crankshaft position (CKP) signal circuit in order to determine the engine RPM.

Initial Brake Apply Signal: The scan tool displays Applied or Released. The EBCM monitors the signal circuit of the brake pedal position sensor. When the ECM receives a GMLAN serial data message from the EBCM indicating that the brake pedal has been applied, the scan tool displays Applied.

Stoplamp Pedal Switch: The scan tool displays Applied or Released. The ECM monitors the stop lamp switch signal circuit. An open switch is displayed as Applied.

Traction Control Status: The scan tool displays Active or Inactive. When the ECM receives a GMLAN serial data message from the EBCM requesting a traction control related function, the scan tool displays Active.

Vehicle Speed Sensor: The scan tool displays 0 to 150 km/h (93.2 mph). The ECM monitors the vehicle speed sensor signal circuit in order to calculate the vehicle speed for display.