Power Locks: Description and Operation

Current always flows to TERMINAL 2 of the Door Lock ECU through the POWER fuse.

1. MANUAL LOCK OPERATION
To push Door Lock Control SW or Key SW to LOCK position, a lock signal is input to TERMINAL 4 of the Door Lock control ECU and causes the ECU to function. Current flows from POWER Fuse to TERMINAL 2 of the ECU --> TERMINAL 6 --> TERMINAL 7 (LH), 6 (RH) of the Door Lock Motors, --> TERMINAL 3 (LH), 2 (RH) --> TERMINAL 1 of the ECU --> TERMINAL 11 --> GROUND, and Door Lock Motor causes the doors to lock.

2. MANUAL UNLOCK OPERATION
To push door lock control SW or key SW to UNLOCK position, an unlock signal is input to TERMINAL 3 of the Door Lock ECU, and causes the ECU to function. Current flows from TERMINAL 2 of the ECU --> TERMINAL 1 --> TERMINAL 3 (LH), 2 (RH) of the Door Lock Motors, --> TERMINAL 7 (LH), 6 (RH) --> TERMINAL 6 of the ECU --> TERMINAL 11 --> GROUND, and Door Lock Motor causes the doors 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 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 ECU. As a result, current flows from TERMINAL 2 of the ECU --> TERMINAL 1 --> TERMINAL 3 (LH), 2 (RH) of the Door Lock Motors, --> TERMINAL 7 (LH), 6 (RH) --> TERMINAL 6 of the ECU --> TERMINAL 11 --> GROUND, and causes 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 door key lock SW, the door is locked once but each door is unlocked by the function of SW contained in motor, which the signal is input to TERMINAL 9 or 12 of the ECU. According to this input signal, current in Relay flows from TERMINAL 2 of the ECU --> TERMINAL 1 --> TERMINAL 3 (LH), 2 (RH) of the Door Lock Motors, TERMINAL 7 (LH), 6 (RH) --> TERMINAL 6 of the ECU --> TERMINAL 11 --> GROUND, and causes all doors to unlock.