Infiniti FX35 / FX45. Manual — part 765
HOW TO USE THIS SECTION
LAN-37
< SERVICE INFORMATION >
[CAN]
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HOW TO USE THIS SECTION
Caution
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• This section describes information peculiar to a vehicle, sheets for trouble diagnosis, and inspection proce-
dures.
• For trouble diagnosis procedure
LAN-14, "Trouble Diagnosis Procedure"
Abbreviation List
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Abbreviations in CAN communication signal chart, and the diagnosis sheet are as per the following list.
Abbreviation
Unit name
SELECT SYSTEM
(CONSULT-III)
CAN DIAG SUPPORT MNTR
(CONSULT-III)
4WD
AWD control unit
ALL MODE AWD/4WD
AWD/4WD
A-BAG
Air bag diagnosis sensor unit
AIR BAG
–
ABS
ABS actuator and electric unit (control unit)
ABS
VDC/TCS/ABS
ADP
Driver seat control unit
AUTO DRIVE POS.
–
BCM
BCM
BCM
BCM/SEC
DISP
Display control unit
–
DISPLAY
DLC
Data link connector
–
–
ECM
ECM
ENGINE
ECM
ICC
ICC unit
ICC
ICC
ICC/e4WD
I-KEY
Intelligent Key unit
INTELLIGENT KEY
I-KEY
IPDM-E
IPDM E/R
IPDM E/R
IPDM E/R
LANE
LDW camera unit
LDW
–
LASER
ICC sensor
–
ICC SENSOR
M&A
Unified meter and A/C amp.
METER/M&A
METER/M&A
STRG
Steering angle sensor
–
STRG
TCM
TCM
TRANSMISSION
TCM
LAN-38
< SERVICE INFORMATION >
[CAN]
PRECAUTIONS
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMENTAL RESTRAINT SYSTEM”.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Trouble Diagnosis
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CAUTION:
• Never apply 7.0 V or more to the measurement terminal.
• Use a tester with open terminal voltage of 7.0 V or less.
• Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when
checking the harness.
Precaution for Harness Repair
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• Solder the repaired area and wrap tape around the soldered area.
NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).
• Bypass connection is never allowed at the repaired area.
NOTE:
Bypass connection may cause CAN communication error. The
spliced wire becomes separated and the characteristics of twisted
line are lost.
• Replace the applicable harness as an assembly if error is detected on the shield lines of CAN communica-
tion line.
SKIB8766E
SKIB8767E
TROUBLE DIAGNOSIS
LAN-39
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TROUBLE DIAGNOSIS
CAN Diagnostic Support Monitor
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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.
AWD Control Unit
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
ICC Unit
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
ECM
TRANSMIT DIAG
Signal transmission status
OK
OK
or
1 – 39
*
UNKWN
0
VDC/TCS/ABS
Signal receiving status from the ABS actu-
ator and electric unit (control unit)
METER/M&A
Signal receiving status from the unified
meter and A/C amp.
BCM/SEC
Signal receiving status from the BCM
ICC
Signal receiving status from the ICC unit
HVAC
Not used even though indicated
TCM
Signal receiving status from the TCM
OK
OK
or
1 – 39
*
UNKWN
0
EPS
Not used even though indicated
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 AWD con-
trol unit
OK
OK
or
1 – 39
*
UNKWN
0
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
VDC/TCS/ABS
Signal receiving status from the ABS actuator and electric unit
(control unit)
ECM
Signal receiving status from the ECM
TCM
Not used even though indicated
METER/M&A
Signal receiving status from the unified meter and A/C amp.
OK
UNKWN
LAN-40
< SERVICE INFORMATION >
[CAN]
TROUBLE DIAGNOSIS
TCM
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
BCM
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
Intelligent Key Unit
ITEM
CAN DIAG SUP-
PORT MNTR
Description
Normal
Error
PRSNT
ICC
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
(control unit)
TCM
Signal receiving status from the TCM
METER/M&A
Not used even though indicated
LANE KEEP
ECM(l)
ICC SENSOR
Signal receiving status from the ICC sensor
OK
UNKWN
STRG
Not used even though indicated
METER/M&A(l)
ERROR(l)
LANE DETEC-
TOR
TCM(l)
BCM/SEC
Signal receiving status from the BCM
OK
UNKWN
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
(control unit)
METER/M&A
Signal receiving status from the unified meter and A/C amp.
ICC/e4WD
Signal receiving status from the ICC unit
AWD/4WD
Signal receiving status from the AWD control unit
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 unified meter and A/C amp.
I-KEY
Not used even though indicated
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