Electrical (Key Disarm): Description and operation

Key Disarm

The driver’s door only will be mechanically unlocked.

The alarm LED will continue to slow flash, perimetric and volumetric sensing will be disabled, but engine immobilisation and starter relay disable will remain activated.

To deactivate the engine immobilisation and starter relay disable, the EKA code must be correctly entered (Refer to EKA description in this section).

Alarm - Remote Handset Operation

In certain markets, the alarm system is programmed not to arm under any circumstances. In these cases the remote handset will only operate the door locking facility as described in remote handset lock/unlock.

Remote Handset Arm

The vehicle alarm can be fully armed by pressing the lock button on the remote handset once with all panels closed. The Vehicle will be superlocked, the hazard warning lights will flash three times. The alarm LED will fast flash for ten seconds and then change to slow flash. Perimetric and volumetric sensing, engine immobilisation and starter relay disable will be activated.

Remote Handset Disarm

The vehicle can be fully disarmed by pressing the unlock button once on the remote handset. The hazard warning lights will flash once and the alarm LED will go off. The perimetric and volumetric sensing will be disabled and engine immobilisation and starter relay disable will be deactivated.

Partial Arming

If one or more of the panels is left open, the CCU will attempt to partially arm as much of the vehicle as possible. If a failure of a panel open switch or wiring occurs, the CCU will partially arm the alarm in the same manner as if a panel is left open.

When the alarm is armed with one or more panels open, the CCU will sound a miss-lock warning from the horn or BBUS to tell the driver that a panel is open.

The miss-lock warning sound is market selectable and therefore may not be operative in specific markets. When the CCU enters a partially armed state, there is no hazard warning flasher operation, the alarm LED will be extinguished for 10 seconds and will then slow flash.

The CCU will partially alarm the vehicle according the priority of the panel left open. The panel priority is driver’s door, passenger door(s), tail door and bonnet with the driver’s door being the highest priority and the bonnet being the lowest.

Drivers Door

If the driver’s door is open and a lock request is made, the CCU will CDL lock the closed doors, suspend superlocking and volumetric sensing and monitor the panel left open.

Vehicle state changes:

• If the driver’s door is open and a lower priority panel closes, the CCU will give a miss-lock sound and remain in the driver’s door partial arm condition.
• If the driver’s door closes, the CCU will sound a miss-lock warning and remain in the driver’s door partial arm condition. If the driver’s door is opened, the alarm will be triggered.
• If the driver’s door closes and one or more lower priority panels are open and a lock request is made, the CCU will CDL lock the closed door(s) and enter the partial arm state of the panel open with the next highest priority.
• If the driver’s door closes and all other panels are closed and a lock request is made, the CCU will lock the doors and arm the alarm.