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Remote Control Door Lock Transmitter Functions

LOCK
When the lock button on the remote control door lock transmitter is pressed, the body control module (BCM) grounds the coil of relay 5. A voltage pulse is applied from the BCM through circuit 295 to both side door lock actuators. Ground is applied from G200 through circuit 650, the BCM and circuit 694 and circuit 1663 to the actuators. the driver and passenger doors lock. The BCM turns off all of the courtesy lamps as a visual confirmation that a lock function was performed.

UNLOCK
When the unlock button on the remote control door lock transmitter is pressed once, the body control module (BCM) grounds the coil of relay 3. A voltage pulse is applied from the BCM through circuit 694 to the left side door lock actuator. Ground is applied from G200 through circuit 650, the BCM and circuit 295 to the actuator. The driver door unlocks. The BCM also grounds the dome/courtesy lamps through CKT 156 for approximately 40 seconds to provide illuminated entry. The BCM then initiates the theater dimming function until the BCM receives an ignition ON input.

When the unlock button on the transmitter is pressed a second time within 5 seconds, the BCM grounds the coil of relay 3. A voltage pulse is applied from the BCM through circuit 1663 to the right side door lock actuator. Ground is applied from G200 through circuit 650, the BCM and circuit 295 to the actuator. The passenger door unlocks.