Door central locking - operation

DOOR CENTRAL LOCKING - OPERATION

1. Anti-theft alarm ECU
2. Latch assembly
3. Lock motor

Central door locking is operated by using any one of the following:

- Remote handset, - Key in the driver’s door lock, - Driver’s door sill button.

Both door locks are operated by separate integral lock motors which function simultaneously. They are controlled by the alarm ECU mounted behind the fascia centre console, below the heater control unit.

A signal from the remote handset is received by the alarm ECU. Depending on this signal the ECU will either lock or unlock the doors by controlling the direction of electrical current sent to the lock motors.

4. Internal door handle
5. External door handle and lock
6. Sill button

When the driver’s door key is turned or the sill button is depressed, the driver’s door is mechanically locked by the door latch which triggers the latch switch. The latch switch sends an earth signal to the alarm ECU, which in turn controls the electrical current sent to the passenger door motor to lock the door.

Operation of the passenger door sill button will lock or unlock the passenger door but will not operate the central door locking system.