Door Locks (Switch Operation)

All lock and unlock commands from the Driver's and Front Passenger's Door Lock Switches are communicated across multiplex communication lines to the Driver's MICU and Passenger's MICU. The following lock or unlock signals are also communicated to the Driver's MICU and Passenger's MICU:

• Door Lock Knob Switches
• Driver's Key Cylinder Switch
• Full Latch Switch inside the Power Tailgate Closer Unit

According to the switch request, the Driver's MICU and Passenger's MICU control a series of relays that provide power and ground to the reversible electric door lock motors for lock and unlock modes.

Inserting the key into the Driver's Door Key Cylinder Switch and turning the key one time will command the Driver's MICU to unlock the driver's door. Turning the key a second time will command the Driver's MICU and Passenger's MICU to unlock the remaining doors.