Principles of Operations

Locks, Latches and Entry Systems







Principles of Operations

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

Power Door Locks

The SJB monitors the door lock control switches. When the SJB receives an unlock/lock command from either door lock control switch, the SJB energizes a relay (internal to the SJB) to supply the correct power and grounds for the door lock actuators. The power door locks function independently of ignition status or vehicle speed.

Luggage Compartment Lid Release

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 by pressing the luggage compartment lid release switch on the driver side lower cowl trim panel (late build) or on the Remote Keyless Entry (RKE) transmitter. When the SJB receives a signal to release the luggage compartment lid, the SJB 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 receives input from programmed RKE transmitters. Based on input from the RKE transmitter, the SJB:

- Unlocks the driver door
- Unlocks all doors
- Locks all doors
- Releases the luggage compartment lid latch
- Arms/disarms the perimeter alarm (if equipped)
- Activates/deactivates the panic alarm
- Commands the interior lamps on (when unlocking) and off (when locking)
- Sounds the horn once and flashes the turn signals when LOCK is pressed twice within 3 seconds, and the doors are closed
- Sounds the horn twice when LOCK is pressed twice within 3 seconds, and any door is ajar