Module, Wireless Control (WCM): Description
The Wireless Control Module (WCM) is the primary component of the Sentry Key Immobilizer System (SKIS). It is also the receiver for the Remote Keyless Entry (RKE) system and the Tire Pressure Monitor (TPM) system. The WCM is located on the right side of the steering column near the ignition lock cylinder housing and is concealed beneath the column shrouds. The molded black plastic housing for the WCM has an integral molded plastic halo-like antenna ring (1) that extends from one side. When the WCM is properly installed, the antenna ring is oriented around the circumference of the ignition lock cylinder housing.
A single integral connector receptacle (4) is located adjacent to the antenna ring on the WCM housing. An integral molded plastic mounting tab (2) on the WCM housing has a hole in the center through which a screw passes to secure the unit to the steering column lock housing. The WCM is connected to the vehicle electrical system through a single take out and connector of the instrument panel wire harness.
The WCM cannot be adjusted or repaired. If ineffective or damaged, the entire WCM unit must be replaced.