Principles Of Operation

Handles, Locks, Latches and Entry Systems

Principles of Operation

NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).

Power Door Locks

Regardless of the key position, the SJB (Smart Junction Box) is supplied voltage at all times. When the SJB (Smart Junction Box) receives a signal from the Remote Keyless Entry (RKE) transmitter, or the door lock control switches, the SJB (Smart Junction Box) supplies a ground signal to the appropriate lock or unlock relay. The ground signal closes the relay which supplies voltage to the door lock actuators. The door lock actuators then actuate to a lock or unlock position.

Luggage Compartment Lid Release

NOTE: When using the Integrated Keyhead Transmitter (IKT) , 2 presses of the luggage compartment lid release button (within 3 seconds) are required to release the luggage compartment lid.

The luggage compartment lid release system is inhibited when the vehicle speed exceeds 8 km/h (5 mph). The luggage compartment lid latch releases the luggage compartment lid when the customer requests it be opened using either the IKT (Integrated Keyhead Transmitter) or the luggage compartment lid release switch. When the SJB (Smart Junction Box) receives a signal to release the luggage compartment lid, the SJB (Smart Junction Box) supplies voltage to the luggage compartment lid latch. The luggage compartment lid latch then actuates to release the luggage compartment lid.

Remote Keyless Entry (RKE)

The SJB (Smart Junction Box) interprets radio frequency signals from the RKE (Remote Keyless Entry) transmitters. The SJB (Smart Junction Box) requests the illuminated entry feature to turn the interior lamps on when an unlock command is received. If a lock command is received, the illuminated entry feature turns off.

The RKE (Remote Keyless Entry) transmitter supplies a signal to the SJB (Smart Junction Box) when any button is pressed. The SJB (Smart Junction Box) then supplies voltage to the appropriate door lock actuator(s) to lock or unlock the doors. The RKE (Remote Keyless Entry) transmitter can also be used to release the luggage compartment lid or activate the panic alarm.