Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Scan Tool Data Definitions
Auto Learn Timer Status: The scan tool displays the time in seconds used by the BCM to learn valid code from the Passlock™ sensor using the techline terminal reprogramming procedure.
Lockout Timer Status: The scan tool displays the time remaining when in tamper mode. The timer starts when the ignition switch is turned to the ON position and the BCM receives a Passlock™ 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 ON to the OFF position.
Passlock Data Voltage: The scan tool displays the voltage code from the Passlock™ sensor to the BCM. The BCM determines if the voltage received is a valid or invalid code voltage.
Passlock Power: The scan tool displays the state of the Passlock™ system power.
Passlock Data: The scan tool displays the state of the Passlock™ system data the scan tool displays Valid or Invalid.
Security Lamp State: The scan tool displays the state of the SECURITY lamp. The scan tool displays ON, OFF or FLASHING.
System Type: The scan tool displays the theft system that the vehicle is equipped with, Passlock™ II.
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).
VTD Fuel Disable: The scan tool displays the state of which the fuel delivery system is in.
VTD Auto Learn Timer: The scan tool displays which state the learn timer for the VTD is currently 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.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.