Nissan Maxima. Manual - part 323

DIAGNOSIS AND REPAIR WORKFLOW

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< BASIC INSPECTION >

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The Diagnostic Procedure described is based on open circuit inspection. A short circuit inspection is also

required for the circuit check in the Diagnostic Procedure.
Is malfunctioning part detected?

YES

>> GO TO 8.

NO

>> Check voltage of related BCM terminals using CONSULT.

8.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1. Repair or replace the malfunctioning part.

2. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace-

ment.

3. Check DTC. If DTC is displayed, erase it.

>> GO TO 9.

9.

FINAL CHECK

When DTC was detected in step 2, perform DTC Confirmation Procedure or Component Function Check

again, and then check that the malfunction has been repaired securely.

When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and check that

the symptom is not detected.
Is the inspection result normal?

NO (DTC is detected)>>GO TO 7.

NO (Symptom remains)>>GO TO 6.

YES

>> Inspection End.

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< BASIC INSPECTION >

INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

INFOID:0000000009471584

Perform the system initialization when replacing BCM, replacing Intelligent Key or registering an additional

Intelligent Key.

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

INFOID:0000000009471585

Refer to the CONSULT Immobilizer mode and follow the on-screen instructions.

AUTOMATIC DOOR LOCKS

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< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

AUTOMATIC DOOR LOCKS

System Diagram

INFOID:0000000009471586

System Description

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DOOR LOCK FUNCTION

• The door lock and unlock switch (driver side) is build 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 and

fuel lid are locked.

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

fuel lid 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 and fuel lid.

• 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 and fuel lid; turning it to “UNLOCK” again within 60 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-53, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"

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AUTOMATIC DOOR LOCKS (LOCK OPERATION)

The automatic door locks function is the function that locks all doors and fuel lid linked with the vehicle speed

or shift position. It has 2 types as follows. 

Vehicle Speed Sensing Auto Door Lock*1

All doors and fuel lid are locked when the vehicle speed reaches 24 km/h (15 MPH) or more. 

ALKIA1603GB

Input

Single

Function

Actuator

Door lock/unlock switch

Door lock/unlock signal

Door lock function

• Each door lock actuator
• Fuel lid door lock actuator

Door key cylinder switch

Each door switch

Door open/close signal

Key reminder function

Key slot

Key insert/remove signal

Combination meter

Warning buzzer signal

Vehicle speed signal

Automatic door lock/unlock 
function

TCM

Shift position signal

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< SYSTEM DESCRIPTION >

AUTOMATIC DOOR LOCKS

BCM outputs the lock signal to all door lock and fuel lid 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 commu-

nication becomes 24 km/h (15 MPH) or more.

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

→ ON), even after initial auto door

lock operation has taken place, the BCM will relock all doors when the vehicle speed reaches 24 km/h (15

MPH) or more again.

P Range Interlock Door Lock

All doors and fuel lid 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 and fuel lid actuators when it detects that the ignition switch is in

the ON position and the shift signal received from the TCM via CAN communication is shifted from the P posi-

tion to any position other than P. 

Setting change of Automatic Door Locks (LOCK) Function

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

With CONSULT

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. Refer to 

DLK-53,

"DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"

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Without CONSULT

The automatic door locks (LOCK) function can be switched ON/OFF by performing the following operation. 
1. Close all doors (door switch OFF)
2. Push the ignition switch to the ON position 
3. Press and hold the door lock and unlock switch for 5 seconds or more in the lock direction within 20 sec-

onds after turning the ignition switch ON. 

4. The switching is completed when the hazard lamp blinks. 

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 and fuel lid linked with the

key position or shift position. It has 2 types as follows. 

IGN OFF Interlock Door Unlock*1

All doors and fuel lid are unlocked when the power supply position is changed from ON to OFF. 

BCM outputs the unlock signal to all door lock and fuel lid actuators when it detects that the power supply posi-

tion is changed from ignition switch ON to OFF. 

P Range Interlock Door Unlock

All doors and fuel lid are unlocked when shifting the selector lever from any position other than the P to P posi-

tion. 

BCM outputs the unlock signal to all door lock and fuel lid actuators when it detects that the ignition switch is in

the ON position and the shift signal received from TCM via CAN communication is shifted from any position

other than the P to P position. 

Setting change of Automatic Door Locks (UNLOCK) Function

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

With CONSULT

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. Refer to 

DLK-

53, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"

. 

Without CONSULT

The automatic door locks (UNLOCK) function can be switched ON/OFF by performing the following operation. 
1. Close all doors (door switch OFF)
2. Push the ignition switch to the ON position 
3. Press and hold the door lock and unlock switch for 5 seconds or more in the unlock direction within 20

seconds after turning the power supply position ON. 

OFF 

→ ON

: 2 blinks

ON 

→ OFF

: 1 blink