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Nissan Pathfinder (2006 year). Manual - part 281

TROUBLE DIAGNOSES WORK FLOW

LAN-9

[CAN]

LAN

2006 Pathfinder

HOW TO USE CHECK SHEET TABLE

Unit names displayed on CONSULT-II.

“No indication”: Put a check mark to it if the unit name described in step 1 is not displayed on “SELECT
SYSTEM” screen of CONSULT-II. (Unit communicating with CONSULT-II via CAN communication line)
“–”: Column not used (Unit communicating with CONSULT-II excluding CAN communication line)

“NG”: Display “NG” when malfunction is detected in the initial diagnosis of the diagnosed unit. Replace the
unit if “NG” is displayed.
“–”: Column not used (Initial diagnosis is not performed.)

“UNKWN”: Display “UNKWN” when the diagnosed unit does not transmit the data normally. Put a check
mark to it if “UNKWN” is displayed on CONSULT-II.
“–”: Column not used (Transmit diagnosis is not performed.)

“UNKWN”: Display “UNKWN” when the diagnosed unit does not receive the data normally. Put a check
mark to it if “UNKWN” is displayed on CONSULT-II.
“–”: Column not used (It is not necessary for CAN communication trouble diagnosis.)

NOTE:
CAN communication diagnosis checks if CAN communication works normally. (Contents of data are not diag-
nosed.)

●

When the initial conditions are reproduced, refer to

LAN-10, "Example of Filling in Check Sheet When Ini-

tial Conditions Are Reproduced"

●

When the initial conditions are not reproduced, refer to

LAN-14, "Example of Filling in Check Sheet When

Initial Conditions Are Not Reproduced"

PKIC5980E

LAN-10

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TROUBLE DIAGNOSES WORK FLOW

2006 Pathfinder

Example of Filling in Check Sheet When Initial Conditions Are Reproduced

Put a check mark to “No indication” if some of unit names listed on the column of diagnosis system selec-
tion screen of a check sheet table are not displayed on “SELECT SYSTEM” screen attached to the check
sheet.

NOTE:
Do not put a check mark on items in the column of “No indication” on the check sheet when displaying all
items on “SELECT SYSTEM” screen.

Confirm the unit name that “UNKWN” is displayed from the copy of “CAN DIAG SUPPORT MNTR” screen
of “ENGINE” attached to the check sheet, and then put a check mark to the check sheet table.

NOTE:
In “CAN DIAG SUPPORT MNTR” screen, “UNKWN” is displayed on “VDC/TCS/ABS”, “METER/M&A”,
“BCM/SEC”, “IPDM E/R” and “AWD/4WD”. Put a check mark to it.

Confirm the unit name that “UNKWN” is displayed on the copy of “CAN DIAG SUPPORT MNTR” screen
of “A/T” as well as “ENGINE”. And then, put a check mark to the check sheet table.

NOTE:

●

For “A/T”, “UNKWN” is displayed on “VDC/TCS/ABS”, “METER/M&A”, “ICC/e4WD” and “AWD/4WD”.
But put a check mark to “VDC/TCS/ABS”, “METER/M&A” and “AWD/4WD” because “UNKWN” is listed
on the column of reception diagnosis of the check sheet table.

PKIC5981E

TROUBLE DIAGNOSES WORK FLOW

LAN-11

[CAN]

LAN

2006 Pathfinder

For display control unit, put a check mark in the following procedure.

Copy to “CAN DIAG SUPPORT MONITOR Check Sheet” (B) from the display screen (A). Refer to

AV-

132, "CAN Communication Line Check"

Read “CAN DIAG SUPPORT MONITOR Check Sheet” (B) with “Display control unit Translation Sheet”
(C).

Check “UNKWN” with a check mark. Put a check mark to the check sheet table.

NOTE:
In “CAN DIAG SUPPORT MONITOR Check Sheet” (B), check marks are put to “CAN CIRC 3”, “CAN
CIRC 6”, “CAN CIRC 8” and “CAN CIRC 9”. But, in the column of the check sheet table indication in “Dis-
play control unit Translation Sheet” (C), “ECM” is listed only for “CAN CIRC 3”. Therefore, put a check
mark to “ECM” because “UNKWN” is listed on the column of reception diagnosis of the check sheet table.

PKIC5982E

LAN-12

[CAN]

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2006 Pathfinder

Confirm the unit name that “UNKWN” is displayed on the copy of “CAN DIAG SUPPORT MNTR” screen
of “BCM”, “METER”, “ALL MODE AWD/4WD”, “AUTO DRIVE POS.”, “ABS” and “IPDM E/R” as well as
“ENGINE”. And then, put a check mark to the check sheet table.

NOTE:

●

For “BCM”, “UNKWN” is displayed on “ECM”. Put a check mark to it.

●

For “METER”, “UNKWN” is displayed on “ECM” and “TCM”. Put a check mark to it.

●

For “ALL MODE AWD/4WD”, “UNKWN” is displayed on “ECM” and “TCM”. Put a check mark to it.

●

For “AUTO DRIVE POS.”, “UNKWN” is displayed on “TCM”. Put a check mark to it.

●

For “ABS”, “UNKWN” is displayed on “ECM”, “TCM”, “METER/M&A” and “ICC”. But put a check mark to
“ECM” and “TCM” because “UNKWN” is listed on the column of reception diagnosis of the check sheet
table.

●

For “IPDM E/R”, “UNKWN” is displayed on “ECM”. Put a check mark to it.

CAUTION:

“ALL MODE AWD/4WD” puts a check mark on the check
sheet when “Present” is “UNKWN” and “Past” is “0”.

PKIC5983E

SKIB3244E

TROUBLE DIAGNOSES WORK FLOW

LAN-13

[CAN]

LAN

2006 Pathfinder

NOTE:
There is a case that some of “CAN DIAG SUPPORT MNTR” and “SELF-DIAG RESULTS” are not needed for
diagnosis. In the case, “UNKWN” and “CAN COMM CIRCUIT [U1000]” in “Check sheet results (example)”
change to “–”. Then, ignore check marks on the check sheet table.

Perform system diagnosis for possible causes identified.

Perform diagnosis again after inspection and repair. Make sure that repair is completely performed, and
then end the procedure.

Start CAN system trouble diagnosis if this procedure can be confirmed. Refer to

LAN-30, "CAN Communica-

tion Unit"

PKIC5984E

LAN-14

[CAN]

TROUBLE DIAGNOSES WORK FLOW

2006 Pathfinder

Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced

See “SELF-DIAG RESULTS” of all units attached to the check sheet. If “CAN COMM CIRCUIT”, “CAN
COMM CIRCUIT [U1000]” or “CAN COMM CIRCUIT [U1001]” is displayed, put a check mark to the appli-
cable column of self-diagnostic results of the check sheet table.

NOTE:

●

For “ENGINE”, “CAN COMM CIRCUIT [U1001]” is displayed. Put a check mark to it.

●

For “A/T”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it.

●

For “BCM”, “NO DTC IS DETECTED” is displayed. Do not put a check mark to it.

●

For “METER”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it.

●

For “ALL MODE AWD/4WD”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it.

●

For “ABS”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it.

●

For “IPDM E/R”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it.

PKIC5985E

TROUBLE DIAGNOSES WORK FLOW

LAN-15

[CAN]

LAN

2006 Pathfinder

For the selected possible causes, it is expected that malfunctions have been found in the past.

PKIC5986E

LAN-16

[CAN]

TROUBLE DIAGNOSES WORK FLOW

2006 Pathfinder

CAN Diagnostic Support Monitor

UKS003GJ

DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ECM

Display Results (Present)

●

OK: Normal

●

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.

●

–: There is no received unit or the unit is not in the condition that reception diagnosis is performed.

Display Results (Past)

●

OK: Normal

●

0: There is malfunction now.

●

1 – 39: Displays when it is normal at present and finds malfunction in the past. It increases like 0

→

2...38

→

39 after returning to the

normal condition whenever IGN OFF

→

ON. If it is over 39, it is fixed to 39 until the self-diagnostic results are erased. It returns to 0

when malfunction is detected again in the process.

●

–: Undiagnosed

PKIC5987E

“SELECT SYSTEM”

screen

“CAN DIAG SUPPORT

MNTR” screen

Description

Present

Past

ENGINE

TRANSMIT DIAG

Make sure of normal transmission.

OK/UNKWN/–

OK/0/1 – 39/–

VDC/TCS/ABS

Make sure of normal reception from ABS actua-
tor and electric unit (control unit).

OK/UNKWN/–

METER/M&A

Make sure of normal reception from combination
meter.

OK/UNKWN/–

BCM/SEC

Make sure of normal reception from BCM.

OK/UNKWN/–

ICC

ICC is not diagnosed.

–

HVAC

HVAC is not diagnosed.

–

TCM

Make sure of normal reception from TCM.

OK/UNKWN/–

EPS

EPS is not diagnosed.

–

IPDM E/R

Make sure of normal reception from IPDM E/R.

OK/UNKWN/–

e4WD

e4WD is not diagnosed.

–

AWD/4WD

Make sure of normal reception from transfer con-
trol unit.

OK/UNKWN/–

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