Nissan Pathfinder (2008 year). Manual - part 162

DIAGNOSIS AND REPAIR WORKFLOW

DLK-197

< BASIC INSPECTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

DLK

DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE

Inspect according to Diagnostic Procedure of the system.
NOTE:
The Diagnostic Procedure described 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 9.

>> Check voltage of related BCM terminals using CONSULT-III.

REPAIR OR REPLACE THE MALFUNCTIONING PART

Repair or replace the malfunctioning part.

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

Check DTC. If DTC is displayed, erase it.

>> GO TO 10.

10.

FINAL CHECK

When DTC was detected in step 2, perform DTC Confirmation Procedure or Component Function Check
again, and then check that the malfunction have 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.
OK or NG

NG (DTC is detected)>>GO TO 8.
NG (Symptom remains)>>GO TO 6.
OK

>> INSPECTION END

DLK-198

< BASIC INSPECTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

INFOID:0000000001563656

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:0000000001563657

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

DOOR LOCK FUNCTION

DLK-199

< FUNCTION DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DLK

FUNCTION DIAGNOSIS

DOOR LOCK FUNCTION

DOOR LOCK AND UNLOCK SWITCH

DOOR LOCK AND UNLOCK SWITCH : System Diagram

INFOID:0000000001563658

DOOR LOCK AND UNLOCK SWITCH : System Description

INFOID:0000000001563659

DOOR LOCK FUNCTION

Functions Available by Operating the Door Lock and Unlock Switches on Driver Door and Passenger Door

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

actuators are locked.

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

actuators are unlocked.

Functions Available by Operating the Key Cylinder Switch on Driver Door

• Interlocked with the locking operation of door key cylinder, door lock actuators of all door lock actuators are

locked.

Selective Unlock Operation

• When door key cylinder is unlocked, door lock actuator driver side is unlocked.
• When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door lock

actuators on all doors are unlocked.

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

DLK-207, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

Key Reminder System

Refer to

DLK-241, "Diagnosis Procedure"

ALKIA0178GB

Switch

Input/output signal to BCM

BCM function

Actuator

Main power window and door
lock/unlock switch

Door lock/unlock signal

Door lock/unlock control

Door lock actuator

Power window and door lock/
unlock switch

Door key cylinder switch

DLK-200

< FUNCTION DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION

DOOR LOCK AND UNLOCK SWITCH : Component Parts Location

INFOID:0000000001563660

DOOR LOCK AND UNLOCK SWITCH : Component Description

INFOID:0000000001563661

REMOTE KEYLESS ENTRY

ALKIA1170ZZ

Key switch M27

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

Front door lock assembly LH (key cyl-
inder switch) D14
Front door lock actuator RH D114

Main power window and door lock/un-
lock D7, D8

Front door switch
LH B8
RH B108

Rear door switch
LH B18
RH B116

Power window and door lock/unlock
switch RH D105

Back door cinching latch unit (door
ajar switch) D502
Back door lock actuator D508

Rear door lock actuator
LH D205
RH D305

Item

Function

BCM

Controls the door lock function and room lamp function.

Door lock and unlock switch

Transmits lock or unlock signal to BCM.

Door lock actuator

Receives lock/unlock signal from BCM and locks/unlocks each door.

Door switch

Transmits door open/close condition to BCM.

DOOR LOCK FUNCTION

DLK-201

< FUNCTION DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DLK

REMOTE KEYLESS ENTRY : System Diagram

INFOID:0000000001563662

REMOTE KEYLESS ENTRY : System Description

INFOID:0000000001563663

OPERATED PROCEDURE

• When the keyfob is operated, the signal from the keyfob is sent and the remote keyless entry receiver

receives the signal and sends it to the BCM. The BCM only locks/unlocks the doors if the ID number
matches. (Remote control entry functions)

• Using the keyfob, the transmitter sends radio waves to the remote keyless entry receiver, which then sends

the received waves to the BCM. Only if the ID number matches does the BCM lock/unlock the doors.
(Remote control door function)

• Unless the key is inserted into the ignition key cylinder or one of the doors is opened within 1 minute after the

UNLOCK switch on the keyfob is pressed, all the doors are automatically locked. (Auto lock function)

• When a door is locked or unlocked, the vehicle turn signal lamps flash and the horn sounds to verify opera-

tion. (Active check function)

• When the key is in the ignition key cylinder (when the key switch is ON) and one of the doors is open, the

door lock function does not work even when the door lock is operated with the keyfob.

• Keyfob ID set up is available.
• If a keyfob is lost, a new keyfob can be set up. A maximum of 5 IDs can be set up simultaneously.

REMOTE CONTROL ENTRY FUNCTIONS

• When a button on the keyfob is operated, the signal is sent from the keyfob and received by the remote key-

less entry receiver.

• The received signal is sent to the BCM and compared with the registered ID number.
• If the ID number matches, the BCM sends the lock/unlock signal to each door lock actuator.
• When the door lock actuators receive this signal, each operates to lock/unlock its door.
• BCM locks all doors with input of LOCK signal from keyfob.
• When an UNLOCK signal is sent from keyfob once, driver's door will be unlocked.
• Then, if an UNLOCK signal is sent from keyfob again within 5 seconds, all other doors will be unlocked.

REMOTE CONTROL ENTRY OPERATION CONDITIONS

AUTO LOCK FUNCTION

Operation Description

• Unless the key is inserted into the ignition key cylinder, one of the doors is opened, or the keyfob is operated

within 1 minute after a door lock is unlocked by keyfob operation, all the doors are automatically locked.
The 1 minute timer count is executed by the BCM and after 1 minute, the BCM sends the lock signal to all
doors.

ALKIA1171GB

Keyfob operation

Operation condition

Door lock operation (locking)

• With key removed (key switch: OFF)
• Closing all doors (door switch: OFF)

Door lock operation (unlocking)

With key removed (key switch: OFF)

DLK-202

< FUNCTION DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DOOR LOCK FUNCTION

Lock operations are the same as for the remote control entry function.

ACTIVE CHECK FUNCTION

Operation Description

When a door is locked or unlocked by keyfob operation, the vehicle turn signals flash and the horn sounds to
verify operation.
• When a button on the keyfob is operated, the signal is sent from the remote controller and received by the

keyless remote entry receiver.

• The received signal is sent to the BCM and compared with the registered ID number.
• If the ID number matches, the BCM uses communication to send the turn signal flashing and horn signal to

the IPDM E/R.

• The IPDM E/R flashes the turn signal lamps and sounds the horn for each keyfob operation.

Operating function of hazard and horn reminder

HAZARD AND HORN REMINDER

BCM output to IPDM E/R for horn reminder signal as DATA LINE (CAN-H line and CAN-L line).
The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).
How to change hazard and horn reminder mode

With CONSULT-III

Hazard and horn reminder can be changed using “WORK SUPPORT” mode in “MULTI ANSWER BACK SET".

Without CONSULT-III

Refer to Owner's Manual for instructions.

INTERIOR LAMP OPERATION

When the following input signals are both supplied:
• all door switches are in the OFF position. (when all the doors are closed);
• interior lamp switch is in DOOR position.
Remote keyless entry system turns on interior lamp and ignition keyhole illumination (for 30 seconds) with
input of UNLOCK signal from keyfob.

PANIC ALARM OPERATION

When key switch is OFF (when ignition key is not inserted in key cylinder), remote keyless entry system turns
on and off horn and headlamp intermittently with input of PANIC ALARM signal from keyfob.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.

KEYLESS POWER WINDOW DOWN (OPEN) OPERATION

When keyfob unlock switch is turned ON with ignition switch OFF, and the switch is detected to be ON contin-
uously for more than 1 second, the driver's door and passenger's door power windows are simultaneously
opened.
Power window is operated to open and the operation continues as long as the keyfob unlock switch is
pressed.

C mode

S mode

Keyfob operation

Lock

Unlock

Lock

Unlock

Hazard warning lamp
flash

Twice

Once

Twice

—

Horn sound

Once

—

DOOR LOCK FUNCTION

DLK-203

< FUNCTION DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DLK

REMOTE KEYLESS ENTRY : Component Parts Location

INFOID:0000000001563664

REMOTE KEYLESS ENTRY : Component Description

INFOID:0000000001563665

1. IPDM E/R E122, E124

2. Horn relay H-1

(view with cover removed)

3. Horn E3 (behind front combination

lamp LH)

4. Back door cinching latch unit (door ajar

switch) D502

5. Front door switch LH B8

RH B108

6. Rear door switch LH B18

RH B116

7. Remote keyless entry receiver M120

(view with instrument panel RH re-
moved)

8. BCM M18, M19, M20

(view with instrument panel LH removed)

9. Key switch M27

ALKIA1172ZZ

Item

Function

BCM

Controls the door lock function and room lamp function.

Door lock and unlock switch

Transmits lock or unlock signal to BCM.

Door switch

Transmits door open/close condition to BCM.

Remote keyless entry receiver

Receives lock/unlock signal from the keyfob, and then transmits to BCM.

DLK-204

< FUNCTION DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

BACK DOOR OPENER FUNCTION

BACK DOOR OPENER FUNCTION

System Diagram

INFOID:0000000001563666

System Description

INFOID:0000000001563667

BACK DOOR OPENER OPERATION

The back door system consists of back door release switch, back door control unit, and back door cinching
latch unit which contains a motor to pull the back door completely shut during closing. Back door lock opening
is allowed when the right front door is open only.

Component Parts Location

INFOID:0000000001563668

Component Description

INFOID:0000000001563669

ALKIA1173GB

ALKIA1174ZZ

Back door control unit D509
(view with back door panel removed)

Back door cinching latch unit D502

Back door release switch D510

Door lock sensor D103

Item

Function

Back door release switch

Transmits back door open operation signal to back door control unit.

Back door control unit

Transmits back door open operation to back door motor.

Back door close switch

Transmits back door close switch signal to back door control unit.

Back door neutral switch

Transmits back door neutral switch signal to back door control unit.

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