FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Antitheft Signal: Description and Operation

On vehicles equipped with the optional Vehicle Theft Alarm (VTA) a set lamp is located in the cluster. This lamp is protected by a 20 amp fuse located in the junction block.

The Body Control Module (BCM) controls the ground path for the lamp. When the system is ARMING and SET the BCM grounds the circuit and the lamp illuminates.