Nissan Pathfinder (2011 year). Instruction — part 552

VEHICLE SECURITY SYSTEM

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< SYSTEM DESCRIPTION >

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VEHICLE SECURITY SYSTEM

System Diagram

INFOID:0000000006246296

System Description

INFOID:0000000006246297

DESCRIPTION

The security system provides an audible and visual alarm when an unauthorized access to the vehicle is

detected while the system is in armed phase.

The security system consist of the BCM managing the audible alarm (horn) and the visual alarm (headlamps).

OPERATION FLOW

Disarmed Phase

When the vehicle is being driven or when doors are open, the theft warning system is set in the disarmed

phase on the assumption that the owner is inside or near the vehicle.

Pre-Armed Phase And Armed Phase

The vehicle security system turns into the pre-armed phase when ignition switch is in OFF position, all doors

including glass hatch are closed and locked (using keyfob, doorlock/unlock switch, driver key cylinder or auto

relock function). The system automatically shifts into the armed phase.

Condition of Activating The System

When the following condition is performed in armed phase, the system sounds the horns and flashes the

headlamps for about 50 seconds.

• Any door is opened.

ALKIA0706GB

PIIA1367E

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VEHICLE SECURITY SYSTEM

Condition of Deactivating The System

When one of the following operations is performed, the armed phase is canceled.

• Unlock the doors with keyfob.

• Use the mechanical key to unlock the driver door using the door key cylinder.

Component Parts Location

INFOID:0000000006246298

1.

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

2.

IPDM E/R E122, E123, E124
(view with cover removed)

3.

Horn relay H-1

4.

Main power window and door lock/
unlock switch D7, D8

5.

Front door switch LH B8
RH B108

6.

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

7.

Power window and door lock/unlock
switch RH D105

8.

Rear door switch LH B18
RH B116

9.

Glass hatch ajar switch D503

10. Back door latch (door ajar switch)

D502
Glass hatch ajar switch D503

11. Horn E3

(behind front combination lamp LH)

12. Combination meter M24

13. Security indicator lamp

ALKIA1718ZZ

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VEHICLE SECURITY SYSTEM

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Component Description

INFOID:0000000006246299

Item

Function

BCM

Verifies the received signal from ignition key, then informs ECM whether to allow engine start.

Door switch

Provides the BCM with the status of each monitored door.

Security indicator

Indicates the status of the security system.

IPDM E/R

Controls the horn and headlamps operation.

Horn

Sounds when the vehicle security system is triggered.

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DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)

INFOID:0000000006766976

APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions.

Direct Diagnostic Mode

Description

Ecu Identification

The BCM part number is displayed.

Self Diagnostic Result

The BCM self diagnostic results are displayed.

Data Monitor

The BCM input/output data is displayed in real time.

Active Test

The BCM activates outputs to test components.

Work support

The settings for BCM functions can be changed.

Configuration

• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.

CAN Diag Support Mntr

The result of transmit/receive diagnosis of CAN communication is displayed.

System

Sub System

Direct Diagnostic Mode

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Door lock

DOOR LOCK

×

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Remote keyless entry system

MULTI REMOTE ENT

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps FLASHER

×

×

Air conditioner

AIR CONDITIONER

×

Intelligent Key system

INTELLIGENT KEY

×

Combination switch

COMB SW

×

BCM

BCM

×

×

×

×

×

Immobilizer

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Back door open

TRUNK

×

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

×

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS

AIR PRESSURE MONITOR

×

×

×

×

Panic alarm system

PANIC ALARM

×

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DIAGNOSIS SYSTEM (BCM)

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IMMU
IMMU : CONSULT-III Function (BCM - IMMU)

INFOID:0000000006766977

DATA MONITOR

ACTIVE TEST

THEFT ALM
THEFT ALM : CONSULT-III Function (BCM - THEFT ALM)

INFOID:0000000006766978

DATA MONITOR

* : with Intelligent Key
** : without Intelligent Key

ACTIVE TEST

WORK SUPPORT

Monitor Item [Unit]

Description

IGN ON SW [On/Off]

Indicates condition of ignition switch ON position.

Test Item

Description

THEFT IND

This test is able to check security indicator operation [Off/On].

Monitor Item [Unit]

Description

IGN ON SW [On/Off]

Indicates condition of ignition switch ON position.

ACC ON SW [On/Off]

Indicates condition of ignition switch ACC position.

I-KEY LOCK* [On/Off]

Indicates condition of lock signal from Intelligent Key.

I-KEY UNLOCK* [On/Off]

Indicates condition of unlock signal from Intelligent Key.

KEYLESS LOCK** [On/Off]

Indicates condition of lock signal from keyfob.

KEYLESS UNLOCK** [On/Off]

Indicates condition of unlock signal from keyfob.

DOOR SW-DR [On/Off]

Indicates condition of front door switch LH.

DOOR SW-AS [On/Off]

Indicates condition of front door switch RH.

DOOR SW-RR [On/Off]

Indicates condition of rear door switch RH.

DOOR SW-RL [On/Off]

Indicates condition of rear door switch LH.

BACK DOOR SW [On/Off]

Indicates condition of back door switch.

KEY CYL LK-SW [On/Off]

Indicates condition of lock signal from door key cylinder switch.

KEY CYL UN-SW [On/Off]

Indicates condition of unlock signal from door key cylinder switch.

CDL LOCK SW [On/Off]

Indicates condition of lock signal from door lock and unlock switch.

CDL UNLOCK SW [On/Off]

Indicates condition of unlock signal from door lock and unlock switch.

Test Item

Description

THEFT IND

This test is able to check security indicator lamp operation [Off/On].

VEHICLE SECURITY HORN

This test is able to check vehicle security horn operation [On].

HEADLAMP(HI)

This test is able to check vehicle security lamp operation [On].

Support Item

Setting

Description

SECURITY ALARM SET

Off

Security alarm OFF.

On*

Security alarm ON.

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DIAGNOSIS SYSTEM (BCM)

*: Initial setting

THEFT ALM TRG

Off/On

The switch which triggered vehicle security alarm is recorded [On]. This mode is able
to confirm and erase the record of vehicle security alarm. The trigger data can be
erased by touching [CLEAR].

CLEAR

Support Item

Setting

Description

2011 Pathfinder

U1000 CAN COMM CIRCUIT

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DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000006246303

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent error detection ability. Modern

vehicle is equipped with many electronic control unit, and each control unit shares information and links with

other control units during operation (not independent). In CAN communication, control units are connected

with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less

wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart, refer to

LAN-53, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000006246304

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000006246305

1.

PERFORM SELF DIAGNOSTIC

1. Turn ignition switch ON and wait for 2 seconds or more.

2. Check “Self Diagnostic Result”.
Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to

LAN-5, "CAN Communication Control Circuit"

.

NO

>> Refer to

GI-37, "Intermittent Incident"

.

DTC

CONSULT-III display

description

DTC Detection Condition

Possible cause

U1000

CAN COMM CIRCUIT

When BCM cannot communicate CAN com-
munication signal continuously for 2 sec-
onds or more.

In CAN communication system, any item (or items)
of the following listed below is malfunctioning.
• Receiving (TCM)
• Receiving (IPDM E/R)
• Receiving (ECM)
• Receiving (METER/M&A)
• Receiving (MULTI AV)

2011 Pathfinder

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U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000006246306

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent error detection ability. Modern

vehicle is equipped with many electronic control unit, and each control unit shares information and links with

other control units during operation (not independent). In CAN communication, control units are connected

with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less

wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart, refer to

LAN-53, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000006246307

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000006246308

1.

REPLACE BCM

When DTC [U1010] is detected, replace BCM.

>> Replace BCM. Refer to

BCS-55, "Removal and Installation"

.

Special Repair Requirement

INFOID:0000000006246309

1.

REQUIRED WORK WHEN REPLACING BCM

Initialize BCM. Refer to CONSULT-III Operation Instruction.

>> Inspection End.

DTC

CONSULT-III display de-

scription

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

When detecting error during the initial diagnosis of CAN control-
ler of BCM.

BCM

2011 Pathfinder