INFINITI FX35 2006 Service Manual

TROUBLE DIAGNOSES WORK FLOW LAN-11
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Revision: 2006 December 2006 FX35/FX45
4. For display control unit, put a check mark in the following procedure.
a. Copy to “CAN DIAG SUPPORT MONITOR Check Sheet” (B) from the display screen (A). Refer to Refer to Service Manual.
b. Read “CAN DIAG SUPPORT MONITOR Check Sheet” (B) with “Display control unit Translation Sheet” (C).
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 “CAN5” and “CAN7”. In
the column of the check sheet table indication in “Display control unit Translation Sheet” (C), “METER/
M&A” and “IPDM E/R” is listed for “CAN5” and “CAN7”. Therefore, put a check mark to “METER/M&A”
and “IPDM E/R”.
PKIC9653E

LAN-12
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Revision: 2006 December 2006 FX35/FX45
5. Confirm the unit name that “UNKWN” is displayed on the copy of “CAN DIAG SUPPORT MNTR” screen of “BCM” and “ABS” as well as “ENGINE”. And then, put a check mark to the check sheet table.
NOTE:

For “BCM”, “UNKWN” is displayed on “IPDM E/R”, “METER/M&A” and “I-KEY”. But, put a check mark
to “IPDM E/R” and “METER/M&A” because “UNKWN” is listed on the column of reception diagnosis of
the check sheet table.

For “ABS”, “UNKWN” is displayed on “ECM”, “TCM”, “METER/M&A”, “STRG” and “ICC”. But, put a
check mark to “ECM”, “TCM” and “STRG” because “UNKWN” is listed on the column of reception diag-
nosis of the check sheet table.
PKIC9654E

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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.
6. Perform system diagnosis for possible causes identified.
7. 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-32, "
CAN Communica-
tion Unit" .
PKIC9655E

LAN-14
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Revision: 2006 December 2006 FX35/FX45
Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced
1. See “SELF-DIAG RESULTS” of all units attached to the check sheet. If “CAN COMM CIRCUIT [U1000]” or “CAN COMM CIRCUIT [U1001]” is displayed, put a check mark to the applicable column of self-diag-
nostic results of the check sheet table.
NOTE:

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

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

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

For “AUTO DRIVE POS.”, “CAN COMM CIRCUIT [U1000]” are displayed. Put a check mark to it.

For “IPDM E/R”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it.
PKIC9656E

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Revision: 2006 December 2006 FX35/FX45
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.
2. For the selected possible causes, it is expected that malfunctions have been found in the past.
PKIC9657E

LAN-16
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TROUBLE DIAGNOSES WORK FLOW
Revision: 2006 December 2006 FX35/FX45
CAN Diagnostic Support MonitorNKS0034B
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 →1→ 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
PKIC3562E
“SELECT SYS- TEM” screen “CAN DIAG SUP-
PORT 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 actuator and
electric unit (control unit). OK/UNKWN/–
METER/M&A Make sure of normal reception from unified meter and A/
C amp. OK/UNKWN/–
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN/–
ICC Make sure of normal reception from ICC unit. OK/UNKWN/–
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 AWD control unit. OK/UNKWN/–

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Revision: 2006 December 2006 FX35/FX45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR TCM
Display Results (Present)

OK: Normal

NG: Malfunction

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
PKIA9892E
“SELECT SYSTEM”
screen “CAN DIAG SUPPORT
MNTR” screen Description Present
A/T INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
VDC/TCS/ABS Make sure of normal reception from ABS actuator and electric unit
(control unit). OK/UNKWN
METER/M&A Make sure of normal reception from unified meter and A/C amp. OK/UNKWN
ICC/e4WD Make sure of normal reception from ICC unit. OK/UNKWN
AWD/4WD Make sure of normal reception from AWD control unit. OK/UNKWN

LAN-18
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Revision: 2006 December 2006 FX35/FX45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR AWD CONTROL UNIT
Display Results (Present)

OK: Normal

NG: Malfunction

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
PKIB5966E
“SELECT SYSTEM”
screen “CAN DIAG SUPPORT
MNTR” screen Description Present
ALL MODE AWD/
4WD INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
VDC/TCS/ABS Make sure of normal reception from ABS actuator and electric
unit (control unit). OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
TCM Make sure of normal reception from TCM.
(Not available for CAN system diagnosis.) OK
METER/M&A Make sure of normal reception from unified meter and A/C amp. OK/UNKWN

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DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ICC UNIT
Display Results (Present)

OK: Normal

NG: Malfunction

UNKWN: The diagnosed unit does not transmit or receive the applicable data normally.
PKIB5985E
“SELECT SYSTEM” screen “CAN DIAG SUP-
PORT MNTR”
screen Description Present
ICC INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG
TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN
ECM Make sure of normal reception from ECM. OK/UNKWN
VDC/TCS/ABS Make sure of normal reception from ABS actuator and electric unit
(control unit). OK/UNKWN
TCM Make sure of normal reception from TCM. OK/UNKWN
METER/M&A METER/M&A is not diagnosed. UNKWN
LANE KEEP LANE KEEP is not diagnosed. UNKWN
ECM(l) Make sure of normal reception from ECM (as a laser radar sensor).
(Not available for CAN system diagnosis.) OK/UNKWN
ICC SENSOR Make sure of normal reception from ICC sensor. OK/UNKWN
STRG STRG is not diagnosed. UNKWN
METER/M&A(l) Make sure of normal reception from combination meter (as a laser
radar sensor).
(Not available for CAN system diagnosis.) OK/UNKWN
ERROR(l) Make sure that the initial diagnosis and transmit diagnosis of laser
radar sensor work normally.
(Not available for CAN system diagnosis.) OK/UNKWN
LANE DETECTOR LANE DETECTOR is not diagnosed. UNKWN
TCM(l) TCM(l) is not diagnosed. UNKWN
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN

LAN-20
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Revision: 2006 December 2006 FX35/FX45
DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN
FOR INTELLIGENT KEY UNIT
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 →1→ 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
SKIB2359E
“SELECT SYSTEM” screen “CAN DIAG SUP-
PORT MNTR” screen Description Present Past
INTELLIGENT KEY TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN/–
OK/0/1 – 39/—
ECM Make sure of normal reception from ECM. OK/UNKWN/–
METER/M&A Make sure of normal reception from unified meter and
A/C amp. OK/UNKWN/–
BCM/SEC Make sure of normal reception from BCM. OK/UNKWN/–