Scan Tool Data Definitions (Cruise Control)

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. 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. On vehicles equipped with a 3.5L engine, a powertrain control module (PCM) is used. On vehicles equipped with a 3.9L engine, an engine control module (ECM) is used.

BPP Circuit Signal: The scan tool displays Applied or Released. The engine control module (ECM) monitors the stop lamp pedal switch signal circuit. An activated brake pedal is displayed as Applied.
BPP Signal: The scan tool displays Applied/Released/Invalid. The body control module (BCM) monitors the signal circuit of the brake pedal position sensor. When the ECM receives a class 2 serial data message from the BCM indicating that the brake pedal has been applied, the scan tool displays Applied.
Cruise Control Active: The scan tool displays Yes or No. The powertrain control module (PCM)/engine control module (ECM) determines the current status of the cruise control operation. An operating cruise control system is displayed as Yes.
Cruise Disengage (1-8) History: The scan tool displays the last 8 reasons why the Cruise Control System was disengaged. Refer to Scan Tool Data Definitions (Cruise Control) or Scan Tool Data Definitions (Disengage History) , Disengage History for descriptions.
Cruise On/Off Switch: The scan tool displays On/Off. This is the state of the cruise control On/Off switch as detected by the PCM/ECM. An active switch is displayed as On.
Cruise Resume/Accel Switch: The scan tool displays On or Off. This is the state of the resume/accel switch as detected by the PCM/ECM. An active cruise resume and accel switch is displayed as On.
Cruise Set/Coast Switch: The scan tool displays On or Off. This is the state of the cruise set switch as detected by the PCM/ECM. An active cruise set switch is displayed as On. The cruise control On/Off switch must be On to view the parameter correctly.
Engine Speed: The scan tool displays 0 to 9999 RPM. This is the engine RPM as monitored by the PCM/ECM. The PCM monitors the crankshaft position (CKP) signal circuit in order to determine the engine RPM.
Ignition 1 Signal: The scan tool displays 0 to 25.5 volts. The PCM/ECM monitors the voltage of the ignition 1 voltage circuit.
Initial Brake Apply Signal: The scan tool displays Applied/Released. The BCM monitors the signal circuit of the brake pedal position sensor. When the PCM receives a class 2 serial data message from the BCM indicating that the brake pedal has been applied, the scan tool displays Applied.
Stop Lamp Pedal Switch: The scan tool displays Applied or Released. The PCM monitors the stop lamp pedal switch signal circuit. An activated brake pedal is displayed as Applied.
Stop Lamp Pedal Switch Signal: The scan tool displays Volts. The PCM monitors the voltage of the stop lamp pedal switch signal circuit.
TAC Stop Lamp Pedal Switch: The scan tool displays Applied or Released. The TAC module monitors the stop lamp pedal switch signal circuit. An activated brake pedal is displayed as Applied.
Traction Control Status: The scan tool displays Active or Inactive. When the PCM/ECM detects that a traction control condition exists, the scan tool displays Active.
Vehicle Speed Sensor: The scan tool displays 0-255 km/h (0-155 mph). The PCM/ECM monitors the vehicle speed sensor signal in order to calculate the vehicle speed for display.