Nissan Frontier D40. Manual - part 211

INSPECTION AND ADJUSTMENT

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< BASIC INSPECTION >

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INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

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Perform the system initialization when replacing BCM, replacing a key fob or registering an additional key fob.

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

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Refer to the CONSULT-III Operation Manual for the initialization procedure.

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< FUNCTION DIAGNOSIS >

AUTOMATIC DOOR LOCKS

FUNCTION DIAGNOSIS

AUTOMATIC DOOR LOCKS

System Diagram

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System Description

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DOOR LOCK FUNCTION

• The door lock and unlock switch (driver side) is built into power window main switch.
• The door lock and unlock switch (passenger side) is on door trim.
• Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors are

locked.

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

unlocked.

Door Key Cylinder

• With the door key inserted in the door key cylinder on driver side, turning it to “LOCK”, will lock door lock

actuator of all doors.

• With the door key inserted in the door key cylinder on driver side, turning it to “UNLOCK” once unlocks the

driver side door lock actuator; turning it to “UNLOCK” again within 5 seconds after the first unlock operation
unlocks all of the other doors. - (SELECTIVE UNLOCK OPERATION)

Selective unlock operation mode can be changed using “DOOR LOCK-UNLOCK SET” mode in “WORK SUP-
PORT”. Refer to 

DLK-20, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

AUTOMATIC DOOR LOCKS (LOCK OPERATION)

The interlock door lock function is the function that locks all doors linked with the vehicle speed. 

Vehicle Speed Sensing Auto Door Lock*1

All doors are locked when the vehicle speed reaches 24 km/h (15 MPH) or more. 
BCM outputs the lock signal to all door lock actuators when it detects that the ignition switch is turned ON, all
doors are closed and the vehicle speed received from the combination meter via CAN communication
becomes 15 MPH (24 km/h) or more. 

ALKIA1722GB

Input

Single

Function

Actuator

Door lock/unlock switch

Door lock/unlock signal

Door lock function

Each door lock actuator

Door key cylinder switch

Each door switch

Door open/close signal

Key reminder function

Combination meter

Warning buzzer signal

Vehicle speed signal

Automatic door lock/unlock 
function

TCM

Shift position signal

AUTOMATIC DOOR LOCKS

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< FUNCTION DIAGNOSIS >

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If a door is opened and closed at any time during one ignition cycle (OFF 

→

 ON), even after initial auto door

lock has taken place, the BCM will relock all doors when the vehicle speed reaches 15 MPH (24 km/h) or more
again.

Setting change of Automatic Door Locks (LOCK) Function

The lock operation setting of the automatic door locks function can be changed. 

With CONSULT-III

The ON/OFF switching of the automatic door locks (LOCK) function and the type selection of the automatic
door locks (LOCK) function can be performed at the WORK SUPPORT setting of CONSULT-III. Refer to 

DLK-

20, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

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Without CONSULT- III

The automatic door locks (LOCK) function can be switched ON/OFF by performing the following operation. 

1.

Close all doors (door switch OFF).

2.

Turn ignition switch ON.

3.

Within 20 seconds of turning the ignition switch ON, press and hold the door lock and unlock switch to the
LOCK position for more than 5 seconds. 

4.

The switching is completed when the hazard lamps blink. 

5.

The ignition switch must be turned OFF and ON again between each setting change.

AUTOMATIC DOOR LOCKS (UNLOCK OPERATION)

The automatic door locks (UNLOCK) function is the function that unlocks all doors linked with the key position. 

IGN OFF Interlock Door Unlock*1

All doors are unlocked when the power supply position is changed from ON to OFF. 
BCM outputs the unlock signal to all door lock actuators when it detects that the power supply position is
changed from ignition switch ON to OFF. 

Setting change of Automatic Door Locks (UNLOCK) Function

The lock operation setting of the automatic door locks function can be changed. 

With CONSULT-III

The ON/OFF switching of the automatic door locks (UNLOCK) function and the type selection of the automatic
door locks (UNLOCK) function can be performed at the WORK SUPPORT setting of CONSULT-III. Refer to

DLK-20, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

. 

Without CONSULT- III

The automatic door locks (UNLOCK) function can be switched ON/OFF by performing the following operation. 

1.

Close all doors (door switch OFF).

2.

Turn ignition switch ON.

3.

Within 20 seconds of turning the ignition switch ON, press and hold the door lock and unlock switch to the
UNLOCK position for more than 5 seconds. 

4.

The switching is completed when the hazard lamps blink. 

5.

The ignition switch must be turned OFF and ON again between each setting change.

*1: This function is set to ON before delivery. 

OFF 

→

 ON

: 2 blinks

ON 

→

 OFF

: 1 blink

OFF 

→

 ON

: 2 blinks

ON 

→

 OFF

: 1 blink

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< FUNCTION DIAGNOSIS >

AUTOMATIC DOOR LOCKS

Component Parts Location - King Cab

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ALKIA1723ZZ

1.

BCM M18, M19, M20
(view with lower instrument panel LH re-
moved)

2.

Key switch M27

3.

Main power window and door lock/
unlock switch D7

4.

Power window and door lock/unlock 
switch RH D105

5.

Front door lock assembly LH (key cylin-
der switch) D14
Front door lock actuator RH D114

6.

Rear door switch upper
LH D211
RH D312

7.

Front door switch
LH D213
RH D314

8.

Rear door switch lower
LH D212
RH D313

9.

Combination meter M24

10. A/T assembly (TCM) F9