Unlock

When the doors are unlocked by the right front exterior key or the interior door sill knob, the internal microswitches in the Left Front Door Lock Actuator (M114) move to the "Unlock" position. Voltage from Fuse F4 is applied to the lock actuators through the 0 wires. The lock actuators are grounded at E201 through the microswitch contacts and the K wires. Since the polarity of the voltage is now reversed, the doors and the tailgate unlock.