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
- Lockout Timer Status
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The duration of time the system remains in tamper mode The VTD system will disable sampling of the key code for 10 minutes when a tamper is detected.
- Auto-Learn Timer Status
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The duration of time the system remains in the re-learn wait mode.
- Door Ajar Switches
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The scan tool displays the door ajar input from any of the vehicle doors. The scan tool displays OPEN when any vehicle door is ajar.
- Seed & Key Timer Status
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The scan tool displays the time in seconds used by the BCM to learn a valid code from the passlock sensor. The learn procedure consists of 3 separate periods.
- Key Cylinder Unlock
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The scan tool displays the input from the drivers door key cylinder. The scan tool displays ON when the key cylinder is in the unlock position.
- Passlock Data Voltage
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Displays the voltage data from the Passlock Sensor to the BCM. The BCM determines if the data received is valid or invalid.
- Security Lamp State
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Indicates the state of the SECURITY indicator either on, off or flashing.
- His DTC Cyc. Counts.
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Displays the number of key cycles that have occurred in order to clear history DTCs.
- PCM/VCM in VTD Fail Enable
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The scan tool displays which state the Powertrain Control Module (PCM) is currently in for the Vehicle Theft Deterrent (VTD).
- VTD Fuel Disable
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The scan tool displays the state of which the fuel delivery system is in.
- VTD Auto Learn Timer
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The scan tool displays which state the learn timer for the VTD is currently in.
- VTD Fuel Disable Until Ign. OFF
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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.