Driver and Passenger Doors

When a Power Door Lock Switch is operated, all of the doors will LOCK or UNLOCK. Power supplied to the switches comes from the CIG LTR fuse #13 through CKT 640 (ORN). Manual operation of each lock is also possible. The Door Lock Inversion Module receives the lock voltage through CKT 195 (LT BLU) and the unlock voltage through CKT 194 (WHT). The Door Lock Inversion Module changes the voltage signals to ground signals so the Body Control Module (BCM) can read what function is being accomplished. CKT 244 (LT BLU) sends door lock ground signals from the Door Lock Inversion Module to the BCM, and for the unlock signal CKT 245 (DK BLU) completes the connection. Ground for the Door Lock Inversion Module runs through CKT 150 (BLK) to ground G202. Depending on the signal sent from the Door Lock Inversion Module the BCM will determine which door(s) will be locked or unlocked. Unlock voltage is sent to the LF Door Lock Motor through CKT 694 (IAN), Voltage from the BCM for the Passenger Door Unlock function is sent through CKT 781 (ORN/BLK) to the unlock coil of the Door Lock Relay. The relay is ground through CKT 150 (BLK) to ground G202. With the coil energized, power is sent Out through CKT 294 (TAN) to the door lock motors, unlocking all but the Driver's Door. For the lock function, the BCM sends voltage through CKT 780 (RED/BLK) to the lock coil of the Door Lock Relay. When the relay is energized power is sent out through CKT 295 (GRY) to all door lock motors, locking the doors.