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
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The scan tool displays Applied or Released. The body control module (BCM) monitors the circuit signal of the brake pedal position (BPP) sensor. The engine control module (ECM) receives a GMLAN serial data message from the BCM regarding the circuit signal status of the BPP sensor.
- BPP Signal
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The scan tool displays Applied, Released or Invalid. The BCM monitors the signal status of the BPP sensor. The ECM receives a GMLAN serial data message from the BCM regarding the signal status of the BPP sensor.
- Cruise Cancel Switch
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The scan tool displays Active, Inactive or Invalid. The BCM determines the current status of cruise control switches. The ECM receives a GMLAN serial data message from the BCM regarding the status of the cruise control switches. A depressed cruise cancel switch is displayed as Active.
- Cruise Control Active
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The scan tool displays Yes or No. The engine control module (ECM) determines the current status of cruise control operation. An active cruise control system is displayed as Yes.
- Cruise Disengage (1-8) History
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The scan tool displays the last 8 reasons why the Cruise Control System was disengaged. Refer to the Scan Tool Data Definitions (Disengage History) for descriptions.
- Cruise On/Off Switch
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The scan tool displays On or Off. The ECM monitors the cruise control set/coast and resume/accelerate switch signal circuit. A closed switch is displayed as On.
- Cruise Resume/Accel. Switch
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The scan tool displays Active, Inactive or Invalid. The BCM determines the current status of cruise control switches. The ECM receives a GMLAN serial data message from the BCM regarding the status of the cruise control switches. A depressed resume/accel. switch is displayed as Active.
- Cruise Set/Coast Switch
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The scan tool displays Active, Inactive or Invalid. The BCM determines the current status of cruise control switches. The ECM receives a GMLAN serial data message from the BCM regarding the status of the cruise control switches. A depressed set/coast switch is displayed as Active.
- Engine Speed
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The scan tool displays 0 to 9,999 RPM. The ECM monitors the CKP signal circuit in order to determine the engine RPM.
- Ignition 1 Signal
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The scan tool displays 6 Volts to 18 Volts. The ECM monitors the ignition 1 signal circuit in order to determine the system voltage.
- Vehicle Speed Sensor
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The scan tool displays 0 to 150 km/h (0 to 93.2 mph). The ECM monitors the vehicle speed sensor signal circuit in order to calculate the vehicle speed for display.