Scan Tool Data Definitions Cruise Control
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 GMLAN serial data message from the BCM indicating that the
brake pedal has been applied, the scan tool displays Applied.
CPP Switch (If Equipped): The scan tool displays Applied or Released. The ECM monitors the CPP switch signal circuit. A closed switch is displayed as Applied.
Cruise Control Active: The scan tool displays Yes or No. The ECM determines the current status of the cruise control operation. An operating Cruise Control System is displayed as Yes.
Cruise Control Switch: The scan tool displays Off/On/Error/Resume/Set. The BCM monitors the cruise control set/coast and resume/accel switch signal circuit in order to determine the status of the cruise control switch.
Cruise Control Switch: The scan tool displays 0-5 volts. The BCM 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.
Cruise Control Switch Sw. to Batt. Voltage Ratio: The scan tool displays percent (%). This is the ratio of the cruise control switch voltage to battery voltage.
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
, Disengage History for descriptions.
Engine Speed: The scan tool displays 0 to 9999 RPM. This is the engine RPM as monitored by the ECM. The ECM 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 ECM monitors the voltage of the ignition 1 voltage circuit.
Reduced Engine Power: The scan tool displays Active or Inactive. When the ECM detects that a reduced engine power condition exists, the scan tool displays Active.
Traction Control Status: The scan tool displays Active or Inactive. When the 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 ECM monitors the vehicle speed sensor signal in order to calculate the vehicle speed for display.