All Door Unlock

The BCM unlocks all doors when pressing unlock once on either door lock switch.

Pressing unlock on either door lock switch grounds a 12 V signal through a 1.5-Ohms resistor to the BCM through circuit 682. This action causes the BCM to activate the unlock relay which then supplies voltage from CKT 1240 to CKT 294 for 315-385 ms, energizing all passenger door actuators and unlocking all passenger doors. Door actuators ground through the door lock relay. This action energizes the driver's door lock actuator and unlocks the driver's door lock.