Vehicle Theft Deterrent (VTD)Circuit Description. Buick Century (China) 2000

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2000 🢒 Century (China) 🢒 Engine 🢒 Engine Controls - 2.5L (LB8) and 3.0L (L46) 🢒 Vehicle Theft Deterrent (VTD)Circuit Description

Body Control Module (BCM)

The body control module (BCM) controls the PASS-Key® II theft deterrent system. Refer to Body Control System Circuit Description in Body Control System for more information.

Diagnostic Trouble Codes (DTCs)

The following DTCs may be set by the BCM. The DTCs are related to the PASS-Key® II:

•	DTC B2957 Security System Sensor Data Circuit Low

•	DTC B2958 Security System Sensor Data Circuit High

•	DTC B2960 Sec Sys Sensor Data Incorrect but Valid

•	DTC B2961 Key In Ignition Circuit Malfunction

•	DTC B3031 Security System Controller in Learn Mode

Refer to Scan Tool Diagnostics .