Town & Country V6-3.8L (2009)
Steering Column Lock: Description and Operation
Shaft Lock Module - Description
DESCRIPTION
A shaft lock module (1) is part of the premium version of the Sentry Key Immobilizer System (SKIS) in the Vehicle Theft Security System (VTSS). The
premium version of the SKIS is only available in vehicles built for certain markets, where the additional features offered by this system are required. The
shaft lock module is located in a bracket integral to the lower end of the steering column housing casting below the instrument panel in the passenger
compartment. This unit is designed to work in conjunction with the Wireless Ignition Node (WIN), sometimes referred to as the Sentry Key REmote
Entry Module (SKREEM) to control a locking bolt (2) that engages a machined slot in the steering shaft to prevent shaft rotation whenever there is not a
valid key present in the ignition lock cylinder on the instrument panel.
Concealed within the module is the electronic circuitry of the module, and a bi-directional electric motor that actuates the locking bolt. The module is
connected to the vehicle electrical system through the instrument panel wire harness.
The mounting provisions for the shaft lock module are designed to resist unauthorized tampering. The module cannot be removed from the steering
column while the locking bolt is in the locked position, or while the steering column is installed in the vehicle. The shaft lock module unit cannot be
adjusted or repaired and, if ineffective or damaged, the entire steering column must be replaced.
