Nissan Pathfinder (2011 year). Manual - part 480

LAN

CAN COMMUNICATION SYSTEM

LAN-53

< SYSTEM DESCRIPTION >

[CAN]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Check CAN system type from the vehicle shape and equipment.

CAN Communication Signal Chart

INFOID:0000000006247785

Refer to 

LAN-13, "How to Use CAN Communication Signal Chart"

 for how to use CAN communication signal

chart.

NOTE:

Refer to 

LAN-36, "Abbreviation List"

 for the abbreviations of the connecting units. 

T: Transmit R: Receive

ALMIA0184GB

Signal name/Connecting unit

ECM

TCM

AV

I-KEY

4W

D

*1

4W

D

*2

ADP

BCM

HV

AC

*3

M&A

STRG

ABS

IPDM

-E

A/C compressor request signal

T

R

Accelerator pedal position signal 

T

R

R

R

ASCD CRUISE lamp signal

T

R

ASCD OD cancel request signal

T

R

ASCD operation signal

T

R

ASCD SET lamp signal

T

R

2011 Pathfinder

LAN-54

< SYSTEM DESCRIPTION >

[CAN]

CAN COMMUNICATION SYSTEM

Battery voltage signal

T

R

Closed throttle position signal

T

R

Cooling fan speed request signal

T

R

Engine coolant temperature signal

T

R

R

Engine  speed  signal

T

R

R

R

R

R

R

R

R

Engine status signal

T

R

Fuel consumption monitor signal

T

R

R

T

Malfunction indicator lamp signal

T

R

Power generation command value signal

T

R

Wide open throttle position signal

T

R

A/T fluid temperature sensor signal

T

R

A/T position indicator lamp signal

T

R

R

R

R

R

A/T self-diagnosis signal

R

T

Input speed signal

R

T

O/D OFF indicator signal

T

R

Output shaft revolution signal

R

T

R

R

P range signal

T

R

R

R

System setting signal

T

R

R

R

R

T

T

T

A/C switch/indicator signal

T

R

R

T

Buzzer output signal

T

R

T

R

Door lock/unlock request signal

T

R

Hazard request signal

T

R

Hazard warning lamp request signal

T

R

Ignition knob switch signal

T

R

Key fob ID signal

T

R

R

R

T

KEY warning signal

T

R

LOCK warning signal

T

R

Panic alarm request signal

T

R

Power window open request signal

T

R

A/C switch signal

R

T

R

Blower fan motor switch signal

R

T

Day time running light request signal

T

R

R

Door lock/unlock status signal

R

T

Door switch signal

R

R

R

T

R

R

Front fog light request signal

T

R

R

Front wiper request signal

T

R

High beam request signal

T

R

R

Horn chirp signal

T

R

Signal name/Connecting unit

ECM

TCM

AV

I-KEY

4W

D

*1

4W

D

*2

ADP

BCM

HV

A

C

*3

M&A

STRG

ABS

IPDM

-E

2011 Pathfinder

LAN

CAN COMMUNICATION SYSTEM

LAN-55

< SYSTEM DESCRIPTION >

[CAN]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

• *1: Part time 4WD models
• *2: All-mode 4WD models
• *3: Models with automatic air conditioner
• *4: Models without manual mode
• *5: Models with manual mode
• *6: Models with hill descent control

NOTE:

CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted. 

Ignition switch signal

R

R

T

R

Key fob door unlock signal

R

T

Key switch signal

R

T

Low beam request signal

T

R

Position light request signal

T

R

R

Rear window defogger switch signal

T

R

Sleep wake up signal

R

T

R

R

Theft warning horn request signal

T

R

Tire pressure data signal

R

T

Tire pressure signal

R

T

R

Turn indicator signal

T

R

1st position switch signal

*4

R

T

Distance to empty signal

R

T

Fuel level low warning signal

R

T

Fuel level sensor signal

R

T

Manual mode shift down signal

*5

R

T

Manual mode shift up signal

*5

R

T

Manual mode signal

*5

R

T

Non-manual mode signal

*5

R

T

Overdrive control switch signal

*4

R

T

Seat belt buckle switch signal

R

T

Stop lamp switch signal

R

R

R

T

R

T

Vehicle speed signal

R

R

R

R

R

R

R

T

R

R

R

R

R

T

Steering angle sensor signal

T

R

ABS warning lamp signal

R

T

Brake warning lamp signal

R

T

Hill descent control indicator lamp signal

*6

R

T

SLIP indicator lamp signal

R

T

VDC OFF indicator lamp signal

R

T

Front wiper stop position signal

R

T

High beam status signal

R

T

Low beam status signal

R

T

Rear window defogger control signal

R

R

T

Signal name/Connecting unit

ECM

TCM

AV

I-KEY

4W

D

*1

4W

D

*2

ADP

BCM

HV

A

C

*3

M&A

STRG

ABS

IPDM

-E

2011 Pathfinder

LAN-56

< SYSTEM DESCRIPTION >

[CAN]

TROUBLE DIAGNOSIS

TROUBLE DIAGNOSIS

CAN Diagnostic Support Monitor

INFOID:0000000006247786

Use “CAN DIAG SUPPORT MNTR” for detecting the root cause.

MONITOR ITEM LIST (CONSULT-III)

ECM

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→

ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

TCM

NOTE:

Replace the unit when “NG” is indicated on the “INITIAL DIAG”.

AV Control Unit

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

ECM

TRANSMIT DIAG

Signal transmission status

OK

OK

or

1 – 39

*

UNKWN

0

VDC/TCS/ABS

Signal receiving status from the ABS actua-
tor and electric unit (control unit)

METER/M&A

Signal receiving status from the combina-
tion meter

BCM/SEC

Signal receiving status from the BCM

ICC/ADAS

Not used even though indicated

HVAC

TCM

Signal receiving status from the TCM

OK

OK

or

1 – 39

*

UNKWN

0

MULTI AV

Not used even though indicated

EPS

IPDM E/R

Signal receiving status from the IPDM E/R

OK

OK

or

1 – 39

*

UNKWN

0

e4WD

Not used even though indicated

AWD/4WD

Signal receiving status from the transfer 
control unit

OK

OK

or

1 – 39

*

UNKWN

0

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

TCM

INITIAL DIAG

Status of CAN controller

OK

NG

TRANSMIT DIAG

Signal transmission status

UNKWN

ECM

Signal receiving status from the ECM

VDC/TCS/ABS

Signal receiving status from the ABS actuator and electric unit (con-
trol unit)

METER/M&A

Signal receiving status from the combination meter

ICC/e4WD

Not used even though indicated

AWD/4WD

Signal receiving status from the transfer control unit

OK

UNKWN

2011 Pathfinder

LAN

TROUBLE DIAGNOSIS

LAN-57

< SYSTEM DESCRIPTION >

[CAN]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→

ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

Intelligent Key Unit

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→

ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

Transfer Control Unit (All-mode 4WD)

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→

ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

Transfer Control Unit (Part Time 4WD)

NOTE:

Replace the unit when “NG” is indicated on the “INITIAL DIAG”.

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

AV

TRANSMIT DIAG

Signal transmission status

OK

OK

or

1 – 39

*

UNKWN

0

ECM

Signal receiving status from the ECM

METER/M&A

Signal receiving status from the combina-
tion meter

BCM/SEC

Signal receiving status from the BCM

HVAC

Signal receiving status from the A/C auto 
amp.

STRG

Not used even though indicated

IPDM E/R

Signal receiving status from the IPDM E/R

OK

OK

or

1 – 39

*

UNKWN

0

TIRE-P

Not used even though indicated

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

I-KEY

TRANSMIT DIAG

Signal transmission status

OK

OK

or

1 – 39

*

UNKWN

0

ECM

Signal receiving status from the ECM

METER/M&A

Signal receiving status from the combina-
tion meter

BCM/SEC

Signal receiving status from the BCM

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

4WD

TRANSMIT DIAG

Signal transmission status

OK

OK

or

1 – 39

*

UNKWN

0

ECM

Signal receiving status from the ECM

VDC/TCS/ABS

Signal receiving status from the ABS actua-
tor and electric unit (control unit)

TCM

Signal receiving status from the TCM

STRG

Signal receiving status from the steering an-
gle sensor

2011 Pathfinder

LAN-58

< SYSTEM DESCRIPTION >

[CAN]

TROUBLE DIAGNOSIS

Driver Seat Control Unit

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→

ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

BCM

NOTE:

Replace the unit when “NG” is indicated on the “INITIAL DIAG”.

A/C Auto Amp.

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

4WD

INITIAL DIAG

Status of CAN controller

OK

NG

TRANSMIT DIAG

Signal transmission status

UNKWN

ECM

Signal receiving status from the ECM

VDC/TCS/ABS

Signal receiving status from the ABS actuator and electric unit (con-
trol unit)

TCM

Signal receiving status from the TCM

METER/M&A

Signal receiving status from the combination meter

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

ADP

TRANSMIT DIAG

Not used even though indicated

METER/M&A

Signal receiving status from the combina-
tion meter

OK

OK

or

1 – 39

*

UNKWN

0

BCM/SEC

Signal receiving status from the BCM

TCM

Signal receiving status from the TCM

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

BCM

INITIAL DIAG

Status of CAN controller

OK

NG

TRANSMIT DIAG

Signal transmission status

UNKWN

ECM

Signal receiving status from the ECM

IPDM E/R

Signal receiving status from the IPDM E/R

METER/M&A

Signal receiving status from the combination meter

I-KEY

Not used even though indicated

2011 Pathfinder

LAN

TROUBLE DIAGNOSIS

LAN-59

< SYSTEM DESCRIPTION >

[CAN]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→

ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

Combination Meter

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→

ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

ABS Actuator and Electric Unit (Control Unit)

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

HVAC

TRANSMIT DIAG

Signal transmission status

OK

OK

or

1 – 39

*

UNKWN

0

ECM

Signal receiving status from the ECM

TCM

Not used even though indicated

BCM/SEC

Signal receiving status from the BCM

OK

OK

or

1 – 39

*

UNKWN

0

VDC/TCS/ABS

Signal receiving status from the ABS actua-
tor and electric unit (control unit)

IPDM E/R

Not used even though indicated

DISPLAY

Signal receiving status from the AV control 
unit

OK

OK

or

1 – 39

*

UNKWN

0

I-KEY

Not used even though indicated

EPS

AWD/4WD

e4WD

ICC/ADAS

LANE CAMERA

TIRE-P

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

M&A

TRANSMIT DIAG

Signal transmission status

OK

OK

or

1 – 39

*

UNKWN

0

ECM

Signal receiving status from the ECM

TCM

Signal receiving status from the TCM

BCM/SEC

Signal receiving status from the BCM

VDC/TCS/ABS

Signal receiving status from the ABS actua-
tor and electric unit (control unit)

IPDM E/R

Signal receiving status from the IPDM E/R

DISPLAY

Not used even though indicated

I-KEY

Signal receiving status from the Intelligent 
Key unit

OK

OK

or

1 – 39

*

UNKWN

0

EPS

Not used even though indicated

AWD/4WD

e4WD

ICC/ADAS

LANE CAMERA

TIRE-P

2011 Pathfinder

LAN-60

< SYSTEM DESCRIPTION >

[CAN]

TROUBLE DIAGNOSIS

CAUTION:

Never replace the unit even when “NG” is indicated on the “INITIAL DIAG” at this stage. Follow the trouble diagnosis proce-
dures. 

IPDM E/R

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→

ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

DTC Index

INFOID:0000000006247787

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

ABS

INITIAL DIAG

Status of CAN controller

OK

NG

Caution

TRANSMIT DIAG

Signal transmission status

UNKWN

ECM

Signal receiving status from the ECM

TCM

Signal receiving status from the TCM

METER/M&A

Not used even though indicated

STRG

Signal receiving status from the steering angle sensor

OK

UNKWN

ICC/ADAS

Not used even though indicated

AWD/4WD

Signal receiving status from the transfer control unit

OK

UNKWN

ITEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

IPDM-E

TRANSMIT DIAG

Signal transmission status

OK

OK

or

1 – 39

*

UNKWN

0

ECM

Signal receiving status from the ECM

BCM/SEC

Signal receiving status from the BCM

DTC

Self-diagnosis item

 (CONSULT-III indication)

DTC detection condition

Inspection/Action

U0101

LOST COMM (TCM)

When ECM is not transmitting or receiving CAN commu-
nication signal of OBD (emission-related diagnosis) from 
TCM for 2 seconds or more.

Refer to 

LAN-36

.

U0140

LOST COMM (BCM)

When ECM is not transmitting or receiving CAN commu-
nication signal of OBD (emission-related diagnosis) from 
BCM for 2 seconds or more.

U0164

LOST COMM (HVAC)

When ECM is not transmitting or receiving CAN commu-
nication signal of OBD (emission-related diagnosis) from 
A/C auto amp. or unified meter and A/C amp. for 2 sec-
onds or more.

U1000

CAN COMM CIRCUIT

ECM

When ECM is not transmitting or receiving 
CAN communication signal of OBD (emission-
related diagnosis) for 2 seconds or more.

Except 
for ECM

When a control unit (except for ECM) is not 
transmitting or receiving CAN communication 
signal for 2 seconds or more.

U1001

CAN COMM CIRCUIT

When ECM is not transmitting or receiving CAN commu-
nication signal other than OBD (emission-related diagno-
sis) for 2 seconds or more.

U1002

SYSTEM COMM

When a control unit is not transmitting or receiving CAN 
communication signal for 2 seconds or less.

Start the inspection. Refer 
to the applicable section 
of the indicated control 
unit.

U1010

CONTROL UNIT(CAN)

When an error is detected during the initial diagnosis for 
CAN controller of each control unit.

Replace the control unit 
indicating “U1010” or 
“P0607”.

P0607

ECM

2011 Pathfinder