Power Locks - Operation

OPERATION

POWER LOCKS

The instrument cluster locks or unlocks the doors when an actuation input signal from a door lock switch or Remote Keyless Entry (RKE) transmitter is received. The instrument cluster turns on the output drivers and provides a voltage level to the door lock motor for a specified time. All passenger doors can be locked or unlocked using a mechanical button mounted on the door trim panel. The drivers door can be locked or unlocked by using the key cylinder.

DOOR LOCK MOTORS

The door lock motors are controlled by the instrument cluster. A positive and negative battery connection to the two motor terminals will cause the motor to move in one direction. Reversing the current will cause the motor to move in the opposite direction.

PASSIVE ENTRY

In the Passive Entry (PE) system the doors are unlocked passively; however, they must still be locked actively after exiting the vehicle using the tactile lock button on either front door handle. When the system senses a hand approaching the capacitive switch in the door handle grip, it sends out challenge messages through the low frequency antennas to authenticate the presence and location of a valid FOB with Integrated Key (FOBIK). The FOBIK responds by sending a Very High Frequency (VHF) message back to the receiver within the Passive Entry Module (PEM). If the PEM determines the FOBIK is valid and that it is located outside the vehicle in the same zone or vicinity as the door handle switch being activated, it sends an electronic unlock request message over the Controller Area Network (CAN) data bus to automatically unlock and allow entry to that door.

Likewise, if the remote deck lid release switch button in the Center High Mounted Stop Lamp (CHMSL) lens is depressed, the PEM will authenticate that a valid FOBIK is located in the zone near the outside of the trunk, then send an electronic unlock request message over the CAN data bus to automatically unlock and allow entry to the trunk.

REMOTE KEYLESS ENTRY

- LOCK: Pressing the LOCK button locks all doors, sounds horn (chirp) once if enabled, flashes the park lamps once if enabled, and arms the Vehicle Theft Security System (VTSS), if enabled. The chirp verifies that the instrument cluster has sent a message for door lock operation. If a door has not been closed before pressing the LOCK button, the vehicle may not be secured and the VTSS (if equipped) will not arm until the door is closed.
- UNLOCK: Pressing the UNLOCK button once will unlock the driver's door first if enabled, flashes the park lamps twice if enabled, activates the illuminated entry system, and disarms the Vehicle Theft Security System (VTSS), if equipped. Pressing the UNLOCK button twice within five seconds will unlock all doors, if driver's door first is enabled.
- PANIC: Pressing the PANIC button sounds the horns at half second intervals, flashes the exterior lamps, and turns ON the interior lamps. The panic alarm will remain on for three minutes or until either the PANIC button is actuated again or the vehicle speed exceeds 25.7 Km/h (15 mph) which will cancel the panic event.