System Outline

Current always flows to TERMINAL 8 of the Door Lock Control Relay through the FL POWER fuse.

1. MANUAL LOCK OPERATION
To change the door lock control SW or key lock and unlock SW to LOCK position, a lock signal is input to TERMINALS 10 or 12 of the door lock control relay, causing the relay to function. The current flows from TERMINAL 8 of the Door Lock Control Relay to TERMINAL 4 --> TERMINAL 4 of the Door Lock Motors --> TERMINAL 2 --> TERMINAL 3 of the Door Lock Control Relay --> TERMINAL 16 --> GROUND, causing the doors to Lock.

2. MANUAL UNLOCK OPERATION
To change the door lock control SW or door key lock and unlock SW to UNLOCK position, an unlock signal is input to TERMINALS 9 or 11 of the door lock control relay, causing the relay to function. The current flows from TERMINAL 8 of the Door Lock Control Relay to TERMINAL 3 --> TERMINAL 2 of the Door Lock Motors --> TERMINAL 4--> TERMINAL 4 of the Door Lock Control Relay --> TERMINAL 16 --> GROUND, causing the doors to Unlock.

3. DOUBLE OPERATION UNLOCK OPERATION
When the door key lock and unlock SW LH is turned to the unlock side, only the driver's door is mechanically unlocked. Turning the door key lock and unlock SW LH to the unlock side causes a signal to be input to TERMINAL 9 of the door lock control relay, and if the signal is input again within 3 seconds by turning the switch to the unlock side again, the current flows from TERMINAL 3 of the door lock control relay to TERMINAL 2 of the door lock motors --> TERMINAL 4 --> TERMINAL 4 of the door lock control relay --> TERMINAL 16 --> GROUND, causing the door lock motor to operate to unlock the doors.

4. IGNITION KEY REMINDER OPERATION
^ Operating door lock knob (operation of door lock motors)
With the ignition key in cylinder (unlock warning SW ON), when either front door is opened and locked using door lock knob (door lock motor), the door is locked once but each door is unlocked soon by the function of the door lock control relay. As a result, the current flows from TERMINAL 8 of the door lock control relay --> TERMINAL 3 --> TERMINAL 2 of the door lock motors --> TERMINAL 4 --> TERMINAL 4 of the door lock control relay --> TERMINAL 16 --> GROUND, causing all the doors to unlock.

^ Operating door lock control SW or door key lock SW
With the ignition key in cylinder (unlock warning SW ON), when either front door is opened and locked using door lock control SW or key SW, the door is locked once but each door is unlock soon by the function of SW contained in motors, which the signal is input to TERMINAL 6 (driver's) or 5 (passenger's) of the door lock control relay. According to this input signal, the current flows from TERMINAL 8 of the door lock control relay to TERMINAL 3 --> TERMINAL 2 of the door lock motors --> TERMINAL 4 --> TERMINAL 4 of the door lock control relay --> TERMINAL 16 --> GROUND, causing all the doors to unlock.

^ In case of key less lock
With the ignition key in cylinder (unlock warning SW ON), when the unlock function is disturbed more than 0.2 seconds, for example pushing the door lock knob etc., the door holds on lock condition. After closing the door, the door courtesy SW inputs a signal into TERMINAL 2 or 14 of the door lock control relay. By this input signal, the ECU works and the current flows from TERMINAL 8 of the door lock control relay --> TERMINAL 3 --> TERMINAL 2 of the door lock motors --> TERMINAL 4 --> TERMINAL 4 of the door lock control relay --> TERMINAL 16 --> GROUND, causing all the doors to unlock.