System Outline

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

1. MANUAL LOCK OPERATION
When the door lock control SW or key SW are pushed to LOCK position, a lock signal is input into TERMINAL 10 or 12 of the Door Lock Control Relay, causing the relay to function. Current flows through TERMINAL 8 of the relay --> TERMINAL 4 --> TERMINAL 4 (except C/P front door) or 7 (C/P front door) of the Door Lock Motors, TERMINAL 2 of the back Door Lock Motor --> TERMINAL 2 (except C/P front door) or 5 (C/P front door) of the Door Lock Motors, TERMINAL 1 of the back Door Lock Motor --> TERMINAL 3 of the relay --> TERMINAL 16 --> GROUND, causing the doors to lock.

2. MANUAL UNLOCK OPERATION
When the door lock control SW or key SW to UNLOCK position, an unlock signal is input into TERMINAL 11 or 13 of the Door Lock Control Relay, causing the relay to function. Current flows through TERMINAL 8 of the relay to TERMINAL 3 --> TERMINAL 2 (except C/P front door) or 5 (C/P front door) of the Door Lock Motors, TERMINAL 1 of the back Door Lock Motor TERMINAL 4 (except C/P front door) or 7 (C/P front door) of the Door Lock Motors. TERMINAL 2 of the back Door Lock Motor --> TERMINAL 4 of the relay --> TERMINAL 16 --> GROUND, causing the doors to unlock.

3. DOUBLE OPERATION UNLOCK OPERATION
When the door key lock SW (driver's) is turned to the unlock side, only the driver's door is mechanically unlocked, turning the door key lock SW (driver's) to the unlock side causes a signal to input into TERMINAL 9 of the Door Lock Control Relay, and if the signal is input again within 3 seconds by turning the SW to the unlock side again, current flows to TERMINAL 3 of the relay --> TERMINAL 2 (except C/P front door) or 5 (C/P front door) of the Door Lock Motors, TERMINAL 1 of the back Door Lock Motor --> TERMINAL 4 (except C/P front door) or 7 (C/P front door) of the Door Lock Motors, TERMINAL 2 of the back Door Lock Motor --> TERMINAL 4 of the relay --> TERMINAL 16 --> GROUND, causing the Door Lock Motors to rotate and unlock the doors.

4. IGNITION KEY REMINDER OPERATION
* Operating Door Lock Knob (Operation Of Door Lock Motors)
With ignition key in cylinder (Unlock Warning SW ON), when the 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, current flows through TERMINAL 8 of the relay to TERMINAL 3 --> TERMINAL 2 (except C/P front door) or 5 (C/P front door) of the Door Lock Motors, TERMINAL 2 of the back Door Lock Motor --> TERMINAL 4 (except C/P front door) or 7 (C/P front door) of the Door Lock Motors, TERMINAL 1 of the back Door Lock Motor TERMINAL 4 of the relay --> TERMINAL 16 --> GROUND, causing all doors to unlock.

* Operating Door Lock Control SW or Door Key Lock SW
With ignition key in cylinder (Unlock Warning SW ON), when the door is opened and locked using door lock control SW or key SW, the door is locked once but each door is unlock by the function of SW contained in motors. Then a signal is input into TERMINAL 6 (driver's) or 5 (passenger's) of the Door Lock Control Relay. According to this input signal, current in ECU flows from TERMINAL 8 of the relay --> TERMINAL 3 --> TERMINAL 2 (except C/P front door) or 5 (C/P front door) of the Door Lock Motors, TERMINAL 1 of the Back Door Lock Motor --> TERMINAL 4 (except C/P front door) or 7 (C/P front door) of the Door Lock Motors, TERMINAL 2 of the back Door Lock Motor --> TERMINAL 4 of the relay --> TERMINAL 16 --> GROUND, causing all doors to unlock.

* In Case Of Key Less Lock
With 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 the signal into TERMINAL 2 or 14 of the Door Lock Control Relay. By this signal, the ECU works and current flows from TERMINAL 8 of the relay --> TERMINAL 3 --> TERMINAL 2 (except C/P front door) or 5 (C/P front door) of the Door Lock Motors, TERMINAL 1 of the back Door Lock Motor --> TERMINAL 4 (except C/P front door) or 7 (C/P front door) of the Door Lock Motors, TERMINAL 2 of the back Door Lock Motor --> TERMINAL 4 of the relay --> TERMINAL 16 --> GROUND, causing all doors to unlock.