Power Locks: Description and Operation

DOOR LOCK CONTROL

SYSTEM OUTLINE

Current always flows to TERMINAL 3 of the body ECU through the POWER fuse.

1. MANUAL LOCK OPERATION
To push the door lock control SW or door key lock and unlock SW to LOCK position, a lock signal is input to the body ECU and causes the ECU to function. Current flows from TERMINAL 3 of the ECU to TERMINAL 14 to TERMINALS 3 (Front LH), 2 (Front RH, rear) of the door lock motors to TERMINALS 7 (Front LH), 6 (Front RH), 1 (Rear) to TERMINAL 15 of the ECU to TERMINAL 8 to GROUND and the door lock motor causes the door to lock.

2. MANUAL UNLOCK OPERATION
To push the door lock control SW or door key lock and unlock SW to UNLOCK position, an unlock signal is input to the body ECU and causes the ECU to function. Current flows from TERMINAL 3 of the ECU to TERMINAL 15 to TERMINALS 7 (Front LH), 6 (Front RH), 1 (Rear) of the door lock motors to TERMINALS 3 (Front LH), 2 (Front RH, rear) to TERMINAL 14 of the ECU to TERMINAL 8 to GROUND and the door lock motor causes the door to unlock.

3. IGNITION KEY REMINDER OPERATION

- Operating door lock knob (in door lock motor operation)
With ignition key in cylinder (Unlock warning SW on), when any door is opened and locked using door lock knob (Door lock motor), all doors are locked once but each door is unlocked soon by the function of the body ECU. As a result, current flows from TERMINAL 3 of the ECU to TERMINAL 15 to TERMINALS 7 (Front LH), 6 (Front RH), 1 (Rear) of the door lock motors to TERMINALS 3 (LH), 2 (Front RH, rear) to TERMINAL 14 of the ECU to TERMINAL 8 to GROUND and causes all the doors to unlock.

- Operating door lock control SW or door key lock and unlock SW
With ignition key in cylinder (Unlock warning SW on), when any door is opened and locked using the door lock control SW or door key lock and unlock SW, all doors are locked once but each door is unlocked by the function of the SW contained in motor, which inputs the signal to the body ECU. According to this input signal, current flows from TERMINAL 3 of the ECU to TERMINAL 15 to TERMINALS 7 (Front LH), 6 (Front RH), 1 (Rear) of the door lock motors to TERMINALS 3 (Front LH), 2 (Front RH, rear) to TERMINAL 14 of the ECU to TERMINAL 8 to GROUND and causes all the doors to unlock.