Operation

OPERATION

Coupe

The Coupe uses an Ultrasonic System with 2 Intrusion Sensors mounted on each side of the rearview mirror. These sensors are connected to an interface module that is located above the courtesy lamp assembly in the headliner. A defeat switch in the courtesy lamp assembly can disable the intrusion sensing function in the event that the vehicle is parked for a short time with a pet/child/or object which could cause false alarms if left in the vehicle. The interface module is connected to the standard alarm module. The Ultrasonic System provides full coverage of both the passenger compartment, and the cargo area.

Roadster

The Roadster, because the soft top can move with gusts of wind or external vibrations, the ultrasonic solution is not practical. This vehicle uses a microwave sensor located in the console below the cupholder. This sensor will provide full coverage of the passenger compartment. Similar to the Coupe, a means is provided to disable the intrusion sensing portion of the alarm in the event that the vehicle remains occupied or is locked with the top down.

The following procedure is used to arm and disarm the Thatcham Alarm:

Arming

Before arming, all doors, liftgate, and the hood must be completely closed. The system can only be armed by locking the doors with the RKE Transmitter.

Disarming

To disarm the alarm system, use the RKE Transmitter or turn the Ignition Switch ON. This will disable the alarm once it has been activated.