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Nissan Pathfinder (2012 year). Manual - part 166

DIAGNOSIS SYSTEM (BCM)

DLK-223

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

DLK

MULTI REMOTE ENT
MULTI REMOTE ENT : CONSULT Function (BCM - MULTI REMOTE ENT)

INFOID:0000000007818269

DATA MONITOR

ACTIVE TEST

WORK SUPPORT

Monitor Item [Unit]

Description

IGN ON SW [On/Off]

Indicates condition of ignition switch ON position.

KEY ON SW [On/Off]

Indicates condition of key switch.

ACC ON SW [On/Off]

Indicates condition of ignition switch ACC position.

KEYLESS LOCK [On/Off]

Indicates condition of lock signal from keyfob.

KEYLESS UNLOCK [On/Off]

Indicates condition of unlock signal from keyfob.

KEYLESS PANIC [On/Off]

Indicates condition of panic 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.

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.

KEY CYL LK SW [On/Off]

Indicates condition of lock signal from door key cylinder switch.

Test Item

Description

DOOR LOCK

This test is able to check door lock operation [OTR ULK/DR UNLK/ALL ULK/ALL LCK].

PW REMOTO DOWN SET

This test is able to check keyfob power window down operation [Off/On].

FLASHER

This test is able to check hazard reminder operation [Off/LH/RH].

HORN

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

Support Item

Setting

Description

HORN CHIRP SET

Off

Horn chirp function can be changed in this mode.

On*

HAZARD LAMP SET

MODE4* Lock and Unlock

Hazard warning lamp function can be changed in this mode.

MODE3

Lock Only

MODE2

Unlock Only

MODE1

OFF

MULTI ANSWER BACK SET

MODE2

Lock

Hazard warning lamps flash twice and horn does not sound.

Unlock

Hazard warning lamps do not flash and horn does not sound.

MODE1*

Lock

Hazard warning lamps flash twice and horn sounds once.

Unlock

Hazard warning lamps flash once and horn does not sound.

AUTO LOCK SET

MODE3

1 min

Auto locking function can be changed in this mode.

MODE2

OFF

MODE1* 5 min

PANIC ALRM SET

MODE3

1.5 sec

Panic alarm operation can be changed in this mode.

MODE2

OFF

MODE1* 0.5 sec

August 2012

2012 Pathfinder

DLK-224

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

DIAGNOSIS SYSTEM (BCM)

*: Initial setting

TRUNK
TRUNK : CONSULT Function (BCM - TRUNK)

INFOID:0000000007818268

DATA MONITOR

ACTIVE TEST

PW DOWN SET

MODE3

5 sec

Keyfob power window down can be changed in this mode.

MODE2

OFF

MODE1*

3 sec

REMO CONT ID REGIST

—

Keyfob ID code can be registered.

REMO CONT ID ERASUR

—

Keyfob ID code can be erased.

REMO CONT ID CONFIR

—

Keyfob ID code registration is displayed.

Support Item

Setting

Description

Monitor Item [Unit]

Description

IGN ON SW [On/Off]

Indicates condition of ignition switch ON position.

TRNK OPNR SW [On/Off]

Indicates condition of back door opener switch.

VEHICLE SPEED [km/h/mph]

Indicates vehicle speed signal received from combination meter on CAN communication
line.

Test item

Description

TRUNK/BACK DOOR

This test is able to check back door latch operation [Open].

August 2012

2012 Pathfinder

U1000 CAN COMM CIRCUIT

DLK-225

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DLK

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000007355570

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:0000000007355571

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000007355572

PERFORM SELF DIAGNOSTIC

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

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

YES

>> Refer to

LAN-14, "Trouble Diagnosis Flow Chart"

>> Refer to

GI-37, "Intermittent Incident"

DTC

CONSULT display de-

scription

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.
• Transmission
• Receiving (ECM)
• Receiving (VDC/TCS/ABS)
• Receiving (METER/M&A)
• Receiving (TCM)

August 2012

2012 Pathfinder

DLK-226

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000007355573

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000007355574

REPLACE BCM

When DTC [U1010] is detected, replace BCM. Refer to

BCS-53,"Removal and Installation’

>> Replace BCM.

Special Repair Requirement

INFOID:0000000007355575

REQUIRED WORK WHEN REPLACING BCM

The BCM must be initialized when replaced. Refer to

BCS-53,"Removal and Installation’

for BCM configura-

tion.

Initialize NVIS by CONSULT. For the details of initialization refer to CONSULT Immobilizer mode and follow

the on-screen instructions.

>> Work End.

DTC

CONSULT display de-

scription

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

BCM detected internal CAN communication circuit malfunction.

BCM

2012 Pathfinder

POWER SUPPLY AND GROUND CIRCUIT

DLK-227

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DLK

POWER SUPPLY AND GROUND CIRCUIT

BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure

INFOID:0000000007818271

Regarding Wiring Diagram information, refer to

BCS-46, "Wiring Diagram"

CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

>> GO TO 2

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3

>> Repair or replace harness.

CHECK GROUND CIRCUIT

Terminal No.

Signal name

Fuses and fusible link No.

Battery power supply

21 (10A)

G (50A)

Ignition ACC or ON

4 (10A)

Ignition ON or START

1 (10A)

Connector

Terminals

Power

source

Condition

Voltage (V) (Ap-

prox.)

(+)

(-)

M18

Ground

ACC

power

supply

Ignition

switch

ACC or

Battery voltage

Ground

Ignition

power

supply

Ignition

switch ON

or START

Battery voltage

M20

Ground

Battery

power

supply

Ignition

switch

OFF

Battery voltage

Ground

Battery

power

supply

Ignition

switch

OFF

Battery voltage

LIIA2415E

August 2012

2012 Pathfinder

DLK-228

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

POWER SUPPLY AND GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Inspection End.

>> Repair or replace harness.

BCM

Ground

Continuity

Connector

Terminal

M20

Yes

LIIA0915E

August 2012

2012 Pathfinder

DOOR SWITCH

DLK-229

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DLK

DOOR SWITCH

Description

INFOID:0000000007355577

Detects door open/close condition.

Component Function Check

INFOID:0000000007355578

CHECK FUNCTION

With CONSULT

Check door switches in data monitor mode with CONSULT.

Is the inspection result normal?

YES

>> Door switch is OK.

>> Refer to

DLK-229, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000007355579

Regarding Wiring Diagram information, refer to

DLK-280, "Wiring Diagram - Without Intelligent Key System"

CHECK DOOR SWITCHES INPUT SIGNAL

With CONSULT

Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR", "BACK DOOR

SW") in DATA MONITOR mode with CONSULT.

• When doors are open:

• When doors are closed:

Without CONSULT

Check voltage between BCM connector M18 or M19 terminals 12, 13, 43, 47, 48 and ground.

Monitor item

Condition

DOOR SW-DR

→

OPEN: OFF

→

DOOR SW-AS

DOOR SW-RL

DOOR SW-RR

BACK DOOR SW

DOOR SW-DR

:ON

DOOR SW-AS

:ON

DOOR SW-RL

:ON

DOOR SW-RR

:ON

BACK DOOR SW

:ON

DOOR SW-DR

:OFF

DOOR SW-AS

:OFF

DOOR SW-RL

:OFF

DOOR SW-RR

:OFF

BACK DOOR SW

:OFF

August 2012

2012 Pathfinder

DLK-230

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DOOR SWITCH

Is the inspection result normal?

YES

>> Door switch circuit is OK.

>> GO TO 2

CHECK DOOR SWITCH CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect door switch and BCM.

3. Check continuity between BCM connector (A) M18, M19 terminals 12, 13, 43, 47, 48 and door switch con-

nector (B) B8 (Front LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 or back door latch

connector (C) D502 terminal 3.

4. Check continuity between door switch connector (B) B8 (Front

LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal

2 or back door latch connector (C) D502 terminal 3 and ground.

Is the inspection result normal?

YES

>> (Front and rear doors) GO TO 3.

YES

>> (Back door) GO TO 4.

>> Repair or replace harness.

CHECK DOOR SWITCH

• Check continuity between door switch terminals.

Connec-

tor

Item

Terminals

Condition

Voltage (V)

(Approx.)

( + )

( – )

M19

Back door

switch/latch

Ground

Open

↓

Closed

↓

Battery voltage

Front door

switch LH

Rear door

switch LH

M18

Front door

switch RH

Rear door
switch RH

LIIA1041E

2 - 47

:Continuity should exist

2 - 12

:Continuity should exist

2 - 48

:Continuity should exist

2 - 13

:Continuity should exist

3 - 43

:Continuity should exist

2 - Ground

:Continuity should not exist

3 - Ground

:Continuity should not exist

ALKIA1701ZZ

August 2012

2012 Pathfinder

Content .. 164 165 166 167 ..