Locks: Description and Operation

Current always flows to TERMINAL A 1 of the integration relay through the DOOR fuse.
When the ignition SW is turned ON, the current flowing through the GAUGE fuse flows to TERMINAL 7 of the integration relay to TERMINAL A 3 to the power relay (Coil side) to GROUND. As a result, the current flowing through the POWER fuse flows to the power relay (Point side) to TERMINAL 12 of the door lock control SW LH to TERMINAL 7 to GROUND, causing the indicator light to light up.

1. MANUAL LOCK OPERATION
When the door lock control SW or door key lock and unlock SW to LOCK position, a lock signal is input to TERMINAL A 16 or A 18 of the integration relay and causes the relay to function. Current flows from TERMINAL A 1 of the relay to TERMINAL A 12 to TERMINALS 2 of the door lock motors to TERMINALS 3 of the door lock motors to TERMINAL A 25 and TERMINAL A 11 of the relay to TERMINAL 10 to GROUND and the door lock motor causes the door to lock.

2. MANUAL UNLOCK OPERATION
When the door lock control SW or door key lock and unlock SW to UNLOCK position, an unlock signal is input to TERMINAL 7 or A 19 or A 20 of integration relay and causes the relay to function. Current flows from TERMINAL A 1 of the relay to TERMINAL A 25 and TERMINAL A 11 to TERMINALS 3 of the door lock motors to TERMINALS 2 to TERMINAL A 12 of the relay to TERMINAL 10 to GROUND and door lock motors causes door to unlock.

3. DOUBLE 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 A 19 of the integration relay, and if the signal is input again within 3 seconds by turning the SW to the unlock side again, current flows from TERMINAL A 25 of the integration relay to TERMINALS 3 of the door lock motors to TERMINALS 2 to TERMINAL A 12 of the relay to TERMINAL 10 to GROUND, causing the door lock motors to operate 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 relay. As a result, the current flows from TERMINAL A 1 of the integration relay to TERMINAL A 25 to TERMINALS 3 of the door lock motors to TERMINALS 2 to TERMINAL A 12 of the relay to TERMINAL 10 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 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, which the signal is input to TERMINAL A 5 (Front LH) or A 7 (Front RH) or A 9 (Rear LH, RH) of the relay. According to this input signal, the current in ECU flows from TERMINAL A 1 of the relay to TERMINAL A 25 to TERMINALS 3 of the door lock motors to TERMINALS 2 to TERMINAL A 12 of the relay to TERMINAL 10 to GROUND and causes all the 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. Closing the door after, door courtesy SW inputs the signal into TERMINAL 4 or 6 or A 6 of the integration relay. By this input signal, the ECU works and current flows from TERMINAL A 1 of the relay to TERMINAL A 25 to TERMINALS 3 of the door lock motors to TERMINALS 2 to TERMINAL A 12 of the relay to TERMINAL 10 to GROUND and causes all the doors to unlock.