Power Door Locks/Remote Keyless Entry

The Instrument Cluster in response to the door lock switches or the RKE module directly controls the power door lock motors. The Instrument Cluster monitors the activation of the door lock motors and will set diagnostic trouble codes when there is an open or short condition. When there is a lock or unlock input from a switch or RKE command, the Instrument Cluster will activate the appropriate driver for 300 milliseconds. If a lock or unlock switch remains active, the request will be ignored until the switch transitions back to off. The lock switches are resistive multiplexed input devices hardwired to the Instrument Cluster.

AUTOMATIC DOOR LOCKS
The Instrument Cluster will automatically lock all the doors when the vehicle speed exceeds 15 MPH (24 KM/H), throttle position exceeds 10 percent and all the doors are closed. If a door is opened the Automatic Door Lock feature shall reset and the Instrument Cluster will lock the doors when the above conditions are met. This feature is programmable by the customer or the DRBIII(R).

CENTRAL LOCKING/UNLOCKING
The Instrument Cluster will lock all doors when the cylinder lock switch is activated in the "lock" position. When the Instrument Cluster receives an unlock command from the driver cylinder lock switch, it will unlock only that door. If the Instrument Cluster receives a second command within a 5-second period it will unlock all the remaining doors. The illuminated entry will activate during door unlock.

DOOR LOCK INHIBIT
When the key is in the ignition, in any position, and either front door is open, the door lock switches LOCK functions are disabled. The UNLOCK functions are still functional. This protects against locking the vehicle with the keys still in the ignition. The RKE transmitter will still lock the doors as usual.

ENHANCED ACCIDENT RESPONSE
Upon detection of an airbag deployment by way of the PCI bus, the Instrument Cluster shall:
- Immediately disable the power door lock output
- Unlock all doors by activating the door unlock output for approximately 300 milliseconds.
- After actuating the door unlock output, allow the door lock motors to be activated if the door lock input has been inactive (not erratic) for 2 seconds since the reception of the airbag deployment message.