Door Latches

DOOR LATCHES

Door Latch and Handles





The door latches are installed in the rear edge of each door and each engage with a striker on the B or C pillar as appropriate.

Each door latch is a sealed unit that incorporates:
^ A lock motor.
^ A superlock motor.
^ A door ajar switch.

The front left door latch incorporates a key lock switch to operate the CLS and the alarm system when the key turns in the door lock. The driver door latch also incorporates a door locked switch to operate the CLS with the locking button.

An electrical connector on each door latch provides the interface between the door latch and the CJB.

Both front door latches incorporate a mechanical anti slam lock feature.

Separate release cables are connected between the door latch and the interior door handle, and between the door latch and the exterior door handle. In the left front door, a third cable is connected between the door latch and the door lock in the exterior door handle.

The lock and superlock motors control the engagement of the latches with the release cables to lock and unlock the vehicle. When the vehicle is locked, the lock motors disengage the latches from the exterior release cables. When the vehicle is superlocked, the superlock motors also disengage the latches from the interior release cables. When the vehicle is unlocked, the CJB reverses the lock and superlock motors, to re-engage the release cables, by changing the polarity of their power and ground connections. To enable the Single Point Entry (SPE) function, the lock motor in the driver door latch is operated by two dedicated connections with the CJB; the lock motors in the other three doors are all operated by two (other) common connections with the CJB. The superlock motors in all four door latches are all operated by two common connections with the CJB.

All of the interior door handles incorporate a locking button. Pressing the front of the locking button pushes the interior release cable, which causes the door latch to disengage from the exterior release cable. On the rear doors, the button also disengages the interior handle from the interior release cable. On the driver door latch, the movement of the interior release cable also operates the door locked switch, to centrally lock all the doors.

Pulling the front of the locking button out again re-engages the interior door handle with the interior release cable, and also pulls on the interior release cable. This causes the door latch to re-engage with the exterior release cable. On the driver door latch, the movement of the interior release cable also operates the door locked switch, to centrally unlock all the doors.

Child Locks

Child Lock and Label





Each rear door incorporates a child lock. The child lock controls the engagement of the interior release lever with the latch mechanism. When a child lock is set to the locked position, the interior release lever is disengaged from the latch mechanism, which prevents the door being opened with the interior door handle.

Each child lock is operated by installing the ignition key in an aperture in the inner skin of the rear door, where the ignition key engages with the child lock barrel on the door latch. Turning the ignition key sets the child lock to the locked or unlocked position, as detailed on the instruction label installed immediately above the child lock aperture.