System Description

System Description

INPUT SIGNAL AND OUTPUT SIGNAL

Signal name	Input	Output	Description
Door lock/unlock switch signal	Door lock/unlock switch	BCM	The BCM receives door lock/unlock switch signals inputs and activates the actuators accordingly.
Door unlock sensor signal	Door unlock sensor	BCM	The BCM receives door unlock sensor signal inputs and activates the actuators accordingly.
Door switch signal	Any door switch	BCM	The BCM receives door switch signals inputs and activates the actuators accordingly.
Nissan Sentra Vehicle speed signal	Combination meter	BCM (CAN)	The BCM receives Nissan Sentra vehicle speed signal inputs and activates the actuators accordingly.

DOOR LOCK FUNCTION

Door Lock and Unlock Switch

• Interlocked with the locking operation of door lock and unlock switch, door lock actuator of all doors are locked.

• Interlocked with the unlocking operation of door lock and unlock switch, door lock actuator of all doors are unlocked.

INTERIOR ROOM LAMP CONTROL FUNCTION

Interior room lamp is controlled according to door lock /unlock state. Refer to System Description.

AIR BAG INTERLOCK UNLOCK FUNCTION

When ignition switch is ON and BCM receives shock status signal, it operates automatically to unlock all doors. Air bag diagnosis sensor unit sends the shock status signal to BCM.

AUTOMATIC DOOR LOCK/UNLOCK FUNCTION (LOCK OPERATION)

The interlock door lock function is the function that locks all doors linked with the Nissan Sentra vehicle speed or shift position. It has 2 types as per the following items:

Vehicle Speed Sensing Auto Door Lock

All doors are locked when the Nissan Sentra vehicle speed reaches 6 MPH (10 km/h) or more.

BCM outputs the lock signal to all door lock actuators when it detects all doors are closed and the Nissan Sentra vehicle speed received from the ABS actuator and electric unit (control unit) via CAN communication becomes 6 MPH (10 km/h) or more.

P Range Interlock Door Lock

All doors are locked when shifting the selector lever from the P position to any position other than P.

BCM outputs the lock signal to all door lock actuators when it detects the shift position signal received from the TCM via CAN communication is shifted from the P position to any position other than P.

Setting Change of Automatic Door Lock/Unlock Function

The lock operation setting of the automatic door lock/unlock function can be changed by combination meter setting.

AUTOMATIC DOOR LOCK/UNLOCK FUNCTION (UNLOCK OPERATION)

The automatic door lock/unlock function is the function that unlocks all doors linked with the key position or shift position. It has 2 types as per the following items:

IGN OFF Interlock Door Unlock

All doors are unlocked when the ignition position is changed from ON to OFF.

BCM outputs the unlock signal to all door lock actuators when it detects that the ignition position is changed from ignition switch ON to OFF.

P Range Interlock Door Unlock

All doors are unlocked when shifting the selector lever from any position other than the P to P position.

BCM outputs the unlock signal to all door lock actuators when it detects the shift position signal received from TCM via CAN communication is shifted from any position other than the P to P position.

Setting Change of Automatic Door Lock/Unlock Function

The unlock operation setting of the automatic door lock/unlock function can be changed by combination meter setting.