Principles of Operation

Locks, Latches and Entry Systems







Principles of Operation

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

Power Locks

The power lock/unlock feature commands both of the vehicle doors to lock or unlock upon a command from the door lock control switch or Remote Keyless Entry (RKE) transmitter. Power locking and unlocking of the doors functions independently of the key position, vehicle speed, or transmission position. The SJB activates the power door lock relays to supply the correct power and grounds for the door lock actuators.

Remote Keyless Entry (RKE)

The SJB receives input from a programmed RKE transmitter, through the Tire Pressure Monitoring System (TPMS)/Remote Keyless Entry (RKE) antenna. The antenna is located externally on the SJB and is not serviceable. Based on the input from the RKE transmitter, the SJB:

- Unlocks the driver door
- Unlocks both doors
- Locks both doors
- Releases the luggage compartment lid
- Locks both doors and flashes the turn signal lamps if all doors (hood and luggage compartment lid if equipped with alarm) are closed
- 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 (hood and luggage compartment lid if equipped with alarm) are closed
- Sounds the horn twice when LOCK is pressed within 3 seconds if any door (hood and luggage compartment lid if equipped with alarm) is ajar
- Arms/disarms the alarm system (if equipped)