LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2004 >> Century Base >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Theft Deterrent System >> Diagnostic Information and Procedures >> Scan Tool Data Definitions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Scan Tool Data Definitions

Lockout Timer

The duration of time the system remains in tamper mode The VTD system will disable sampling of the key code for 3 minutes when a tamper is detected.

Auto Learn Timer

The duration of time the system remains in the re-learn wait mode.

Seed and Key Timer

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 seperate periods.

Passkey Data Voltage

Displays the voltage data from the Passkey Sensor to the BCM. The BCM determines if the data received is valid or invalid.

Security Lamp State

Indicates the state of the SECURITY indicator either On or Off.

His DTC Cyc. Counts.

Displays the number of key cycles that have occured in order to clear history DTCs.