Nissan Pathfinder (2009 year). Manual - part 575

SEC-22

< FUNCTION DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DIAGNOSIS SYSTEM (BCM)

1: With Intelligent Key

2: With remote keyless entry system

ACTIVE TEST

KEY CYL UN-SW [ON/OFF]

Indicates unlock switch status from door key cylinder switch

CDL LOCK SW [ON/OFF]

Indicates lock switch status from door lock and unlock switch

CDL UNLOCK SW [ON/OFF]

Indicates unlock switch status from door lock and unlock switch

HOOD SW [ON/OFF]

NOTE:
This is displayed even when it is not equipped

Monitor Item

[Unit]

Description

Test Item

Description

THEFT IND

This test is able to check security indicator lamp operation. The lamp will be turned on when “ON” 
on CONSULT-III screen is touched.

VEHICLE SECURITY HORN

This test is able to check vehicle security horn operation. The horns will be activated for 0.5 sec-
onds after “ON” on CONSULT-III screen is touched.

HEADLAMP(HI)

This test is able to check vehicle security lamp operation. The headlamps will be activated for 0.5 
seconds after “ON” on CONSULT-III screen is touched.

2009 Pathfinder

DIAGNOSIS SYSTEM (INTELLIGENT KEY UNIT)

SEC-23

< FUNCTION DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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DIAGNOSIS SYSTEM (INTELLIGENT KEY UNIT)

CONSULT-III Function (INTELLIGENT KEY)

INFOID:0000000004432074

APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with Intelligent Key unit.

SELF-DIAG RESULT

Refer to 

DLK-145, "DTC Index"

.

DATA MONITOR

Diagnosis mode

Function Description

WORK SUPPORT

Changes the setting for each system function.

SELF-DIAG RESULTS

Displays the diagnosis results judged by Intelligent Key unit.

CAN DIAG SUPPORT MNTR

Monitors the reception status of CAN communication viewed from Intelligent Key unit.

DATA MONITOR

The Intelligent Key unit input/output signals are displayed.

ACTIVE TEST

The signals used to activate each device are forcibly supplied from Intelligent Key unit.

ECU IDENTIFICATION

The Intelligent Key unit part number is displayed.

Monitor Item

Condition

PUSH SW

Indicates [ON (pushed)/OFF (released)] condition of ignition knob switch.

KEY SW

Indicates [ON (inserted)/OFF (removed)] condition of key switch.

DR REQ SW

Indicates [ON (pressed)/OFF (released)] condition of door request switch (driver side).

AS REQ SW

Indicates [ON (pressed)/OFF (released)] condition of door request switch (passenger 
side).

BD/TR REQ SW

This item is shown but not monitored.

IGN SW

Indicates [ON (ON or START position)/OFF (other than ON and START position)] con-
dition of ignition switch ON position.

ACC SW

Indicates [ON/OFF] condition of ignition switch ACC position.

STOP LAMP SW

Indicates [ON/OFF] condition of stop lamp switch.

P RANGE SW

Indicates [ON/OFF] position of shift lever park position switch.

BD OPEN SW

This item is shown but not monitored.

TR CANCEL SW

This item is shown but not monitored.

DOOR LOCK SIG

Indicates [ON/OFF] condition of LOCK signal from Intelligent Key.

DOOR UNLOCK SIG

Indicates [ON/OFF] condition of UNLOCK signal from Intelligent Key.

KEYLESS TRUNK SW

This item is shown but not monitored.

KEYLESS PANIC SW

Indicates [ON (pressed)/OFF (released)] condition of Intelligent Key panic button.

KEYLS PSD LH

This item is shown but not monitored.

KEYLS PSD RH

This item is shown but not monitored.

KEYLS PBD SIG

Indicates [ON (pressed)/OFF (released)] condition of Intelligent Key back door button.

DOOR SW DR

Indicates [OPEN/CLOSE] condition of front door switch (driver side) from BCM via CAN 
communication.

DOOR SW AS

Indicates [OPEN/CLOSE] condition of front door switch (passenger side) from BCM via 
CAN communication.

DOOR SW RR

Indicates [OPEN/CLOSE] condition of rear door switch (RH) from BCM via CAN com-
munication.

DOOR SW RL

Indicates [OPEN/CLOSE] condition of rear door switch (LH) from BCM via CAN com-
munication.

DOOR BK SW

Indicates [OPEN/CLOSE] condition of back door switch from BCM via CAN communi-
cation.

2009 Pathfinder

SEC-24

< FUNCTION DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DIAGNOSIS SYSTEM (INTELLIGENT KEY UNIT)

ACTIVE TEST

TRUNK SW

This item is shown but not monitored.

VEHICLE SPEED

Displays the vehicle speed signal received from combination meter by numerical value 
[km/h].

Monitor Item

Condition

Test item

Description

DOOR LOCK/UNLOCK

This test is able to check door lock/unlock operation. 
• ALL UNLK: All door lock actuators are unlocked.
• DR UNLK: Door lock actuator (driver side) is unlocked.
• AS UNLK: Door lock actuator (passenger side) is unlocked.
• BK UNLK: This item is indicated, but inactive.
• LOCK: All door lock actuator is locked.

ANTENNA

This test is able to check Intelligent Key antenna operation. 
When the following condition are met, hazard warning lamps flash.
• ROOM ANT1: Inside key antenna (front of center console) detects Intelligent Key, 

when “ROOM ANT1” is selected.

• ROOM ANT2: Inside key antenna (rear luggage area) detects Intelligent Key, when 

“ROOM ANT2”is selected.

• ROOM ANT3: Inside key antenna (rear of center console) detects Intelligent Key, 

when “ROOM ANT3” is selected.

• ROOM ANT4: Inside key antenna (roof console) detects Intelligent Key, when 

“ROOM ANT4”is selected.

• DRIVER ANT: Outside key antenna (driver side) detects Intelligent Key, when “DRIV-

ER ANT” is selected.

• ASSIST ANT: Outside key antenna (passenger side) detects Intelligent Key, when 

“ASSIST ANT” is selected.

• BK DOOR ANT: Outside key antenna (rear bumper) detects Intelligent Key, when “BK 

DOOR ANT” is selected.

OUTSIDE BUZZER

This test is able to check Intelligent Key warning buzzer operation.
• ON
• OFF 

INSIDE BUZZER

This test is able to check warning chime in combination meter operation.
• TAKE OUT: Take away warning chime sounds.
• KNOB: Ignition knob switch warning chime sounds.
• KEY: Key warning chime sounds.
• OFF

2009 Pathfinder

U1000 CAN COMM CIRCUIT

SEC-25

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000003938433

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-58, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000003938434

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000003938435

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-49, "Intermittent Incident"

.

DTC

CONSULT-III display 

description

DTC Detection Condition

Possible cause

U1000

CAN COMM CIRCUIT

When Intelligent Key unit cannot communi-
cate CAN communication signal continuous-
ly for 2 seconds or more.

In CAN communication system, any item (or items) 
of the following listed below is malfunctioning.
• Transmission
• Receiving (BCM)
• Receiving (ECM)
• Receiving (METER/M&A)

2009 Pathfinder

SEC-26

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000003938436

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-58, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000003938437

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000003938438

1.

REPLACE INTELLIGENT KEY UNIT

When DTC [U1010] is detected, replace Intelligent Key unit.

>> Replace Intelligent Key unit. Refer to 

SEC-119, "Removal and Installation"

.

Special Repair Requirement

INFOID:0000000003938439

1.

REQUIRED WORK WHEN REPLACING INTELLIGENT KEY UNIT

Initialize control unit. Refer to CONSULT-III Operation Manual.

>> Work 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 Intelligent Key unit.

Intelligent Key unit

2009 Pathfinder

B2013 ID DISCORD I-KEY-STRG

SEC-27

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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Description

INFOID:0000000003938440

Intelligent Key unit performs the ID verification with the steering lock unit and releases the steering lock if both
Intelligent Key unit and steering lock unit ID are same. Intelligent Key unit starts the communication with the
steering lock unit when Intelligent Key is carried into the vehicle and the ignition knob switch is pressed.

DTC Logic

INFOID:0000000003938441

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the ignition knob switch

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Refer to 

SEC-27, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000003938442

1.

PERFORM INITIALIZATION

Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Manual”.

Can the system be initialized and can steering lock be released with re-registered mechanical key?

YES

>> Steering lock solenoid was unregistered.

NO

>> GO TO 2

2.

CHECK STEERING LOCK SOLENOID POWER SUPPLY-1

1.

Turn ignition switch OFF.

2.

Disconnect steering lock solenoid connector.

3.

Check voltage between steering lock solenoid harness connec-
tor and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

CHECK STEERING LOCK SOLENOID GROUND CIRCUIT

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2013

STRG COMM 1

The ID verification results between Intelligent Key 
unit and steering control unit are NG. The registra-
tion is necessary.

Steering lock unit

Terminals

Voltage (V)

(Approx.)

(+)

(–)

Steering lock solenoid con-

nector

Terminal 

M65

1

Ground

Battery voltage

PIIB6632E

2009 Pathfinder

SEC-28

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2013 ID DISCORD I-KEY-STRG

Check continuity between steering lock solenoid harness connector
and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUITS

1.

Disconnect Intelligent Key unit connector.

2.

Check continuity between steering lock solenoid connector (A)
M65 terminals 2, 3 and Intelligent Key unit connector (B) M164
terminals 1, 32. 

3.

Check continuity between steering lock solenoid connector (A)
M65 terminals 2, 3 and ground. 

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace harness.

5.

CHECK INTELLIGENT KEY UNIT POWER SUPPLY-2

1.

Connect Intelligent Key unit connector.

2.

Check voltage between Intelligent Key unit harness connector
and ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Replace Intelligent Key unit. Refer to 

SEC-119,

"Removal and Installation"

.

6.

CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUIT

1.

Connect steering lock solenoid connector.

Terminals

Continuity

(+)

(–)

Steering lock solenoid con-

nector

Terminal 

M65

4

Ground

Yes

PIIB6633E

Terminals

Continuity

Steering lock sole-

noid connector

Terminal 

Intelligent Key unit 

connector

Terminal 

M65

2

M164

1

Yes

3

32

Terminals

Continuity

Steering lock solenoid connector

Terminals 

M65

2

Ground

No

3

ALKIA1272ZZ

Terminals

Voltage (V)

(Approx.)

(+)

(–)

Intelligent Key unit connector

Terminal 

M164

1

Ground

5

WIIA1204E

2009 Pathfinder

B2013 ID DISCORD I-KEY-STRG

SEC-29

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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2.

Using an oscilloscope, check voltage between Intelligent Key
unit connector and ground.

Is the inspection result normal?

YES

>> Replace Steering lock solenoid.

NO

>> Replace Intelligent Key unit. Refer to 

SEC-119, "Removal and Installation"

.

WIIA1205E

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

Intelligent Key 
unit connector

Terminal 

M164

32

Ground

Steering 
lock

Ignition knob is pushed

LOCK status

5

LOCK 

⇔

 UNLOCK

For 15 seconds after 
UNLOCK

5

15 seconds later UN-
LOCK

0

SIIA1911J

JMKIA0433ZZ

2009 Pathfinder