Nissan Frontier. Manual — part 971
LAN-34
< BASIC INSPECTION >
[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
7. Perform the inspection procedure for the possible cause. Refer to “MALFUNCTION AREA CHART”.
Past Error — Short Circuit —
When the symptoms listed below exist, a short circuit of the CAN communication line is a possible cause.
PKID1224E
Item (CONSULT)
Indication
Inspection procedure
SELF-DIAG RESULTS
DTC of CAN communication is indicated in the past for most
units.
Refer to “MALFUNCTION AREA
CHART”.
CAN DIAG SUPPORT MNTR
Only on CAN DIAG SUPPORT MNTR (with PAST), “1 - 39” is in-
dicated on “PAST” of “TRANSMIT DIAG” and the reception item.
LAN
DIAGNOSIS AND REPAIR WORKFLOW
LAN-35
< BASIC INSPECTION >
[CAN FUNDAMENTAL]
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JSMIA0822GB
LAN-36
< HOW TO USE THIS MANUAL >
[CAN]
HOW TO USE THIS SECTION
HOW TO USE THIS MANUAL
HOW TO USE THIS SECTION
Caution
INFOID:0000000009479096
• This section describes information peculiar to a vehicle, sheets for trouble diagnosis, and inspection proce-
dures.
• For trouble diagnosis procedure, refer to
LAN-14, "Trouble Diagnosis Procedure"
.
Abbreviation List
INFOID:0000000009479097
Abbreviation in CAN communication signal chart, and the diagnosis sheet are as per the following list.
Abbreviation
Unit name
SELECT SYSTEM
(CONSULT)
CAN DIAG SUPPORT MNTR
(CONSULT)
4WD
Transfer control unit
ALL MODE AWD/4WD
AWD/4WD
A-BAG
Air bag diagnosis sensor unit
AIR BAG
—
AV
AV control unit
MULTI AV
MULTI AV
ABS
ABS actuator and electric unit (control unit)
ABS
VDC/TCS/ABS
BCM
BCM
BCM
BCM/SEC
DIFF
Differential lock control unit
DIFF LOCK
DIFF LOCK
DLC
Data link connector
—
—
ECM
ECM
ENGINE
ECM
HVAC
Front air control
HVAC
HVAC
IPDM-E
IPDM E/R
IPDM E/R
IPDM E/R
M&A
Combination meter
METER/M&A
METER/M&A
STRG
Steering angle sensor
—
STRG
TCM
TCM
TRANSMISSION
TCM
LAN
PRECAUTIONS
LAN-37
< PRECAUTION >
[CAN]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000010242233
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 SR and SB section of this Service Man-
ual.
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 SR section.
• 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.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
Precautions for Trouble Diagnosis
INFOID:0000000009479099
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.
Precautions for Harness Repair
INFOID:0000000009479100
• 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).
SKIB8766E
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