Scan Tool Data Definitions

SCAN TOOL DATA DEFINITIONS

Auto Learn Timer: The scan tool displays the seconds used by the BCM to learn valid code from the Passlock(TM) sensor. The learn procedure consists of 3 consecutive periods.

Battery Voltage: The scan tool displays the battery system voltage.

Content Theft Lamp: The scan tool displays the state of the SECURITY lamp. The scan tool displays ON when activated by an unauthorized entry.

Content Theft State: The scan tool displays the state of the content theft feature. The scan tool displays ON when activated by an unauthorized entry.

Door Unlock Switch: The scan tool displays the state of the door key switch. The scan tool displays ACTIVE when the switch is activated in either door key cylinder.

Drivers Door Ajar Switch: The scan tool displays the position of the drivers door. The scan tool displays ACTIVE when the drivers door is open.

GM Part Number: The scan tool displays the part number assigned to the BCM that is currently in the vehicle.

Ignition 0: The scan tool displays the state of the ignition switch. The scan tool displays ACTIVE when the ignition switch is in the RUN position.

Ignition 1: The scan tool displays the state of the ignition switch. The scan tool displays ACTIVE when the ignition switch is in the RUN or CRANK position.

Passenger Door Ajar Switch: The scan tool displays the position of the passenger door. The scan tool displays ACTIVE when the passenger door is open.

Passlock(TM) Code: The scan tool displays the validity of the Passlock(TM) code received by the BCM. The scan tool displays OPEN, SHORTED, TAMPER and a valid code as a numeric value (1-10).

Passlock(TM) Data Voltage: The scan tool displays the voltage code from the Passlock(TM) sensor to the body control module (BCM). A valid Passlock(TM) sensor voltage of 5 volts will be displayed on the scan tool when the ignition cylinder is turned to the on position. Once the ignition cylinder has been rotated to the crank position the Passlock(TM) voltage will drop from 5 to 0.86-4.28 volts depending on which of the 10 possible Passlock(TM) sensors the vehicle is equipped with. The BCM then determines if the voltage received is a valid or invalid code. The scan tool will continue to display the Passlock(TM) voltage code (0.86-4.28 volts) received by the BCM when the ignition cylinder returns to the on/run position.

Passlock(TM) Ignition Cycles: The scan tool displays the amount of times the ignition switch has been cycled.

Passlock(TM) Power: The scan tool displays the state of the Passlock(TM) 12-volt power supply from the BCM.

Passlock(TM) State: The scan tool displays the state of the Passlock(TM) system.

Seed and Key Timer: The scan tool displays 0-2550 seconds. The scan tool displays the current state of the Seed and Key Timer, which must time out in order for the relearn procedure to be complete.

PCM/VCM in VTD Fail Enable: The scan tool displays which state the Powertrain Control Module (PCM) is currently in for the Vehicle Theft Deterrent (VTD).

Security Lamp: The scan tool displays the state of the SECURITY lamp. The scan tool displays ON, OFF or FLASHING.

Tamper Timer: The scan tool displays the time remaining when in the tamper mode. The timer starts when the ignition switch is turned to the RUN position and the BCM receives a Passlock(TM) data voltage different from the last learned voltage. The timer has a delay of 10 minutes and will stay active even if the ignition switch is cycled from the RUN to the OFF position.

VCM/PCM Fail Enable: The scan tool displays the state of the VCM/PCM fail enable mode. The scan tool displays YES when the Passlock(TM) system transitions from the Monitor Passlock(TM) Data state to the VCM/PCM Fail Enable state.

VTD Auto Learn Timer: The scan tool displays which state the learn timer for the VTD is currently in.

VTD Fuel Disable: The scan tool displays the state of which the fuel delivery system is in.

VTD Fuel Disable Until Ign. OFF: The scan tool display the state of which the fuel delivery system is in according to the ignition switch position.