NISSAN NOTE 2016 Service Repair Manual

LAN
TROUBLE DIAGNOSISLAN-13
< SYSTEM DESCRIPTION > [CAN FUNDAMENTAL]
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• Response to the system call
• Control unit diagnosis information
• Self-diagnosis
• CAN diagnostic support monitor
Self-DiagnosisINFOID:0000000012433336
If communication signals cannot be transmitted or rece
ived among control units communicating via CAN com-
munication line, CAN communication-related DTC is displayed on the CONSULT “Self Diagnostic Result”
screen.
NOTE:
The following table shows examples of CAN communicati on-related DTC. For other DTC, refer to the applica-
ble sections.
CAN Diagnostic Support MonitorINFOID:0000000012433337
MONITOR ITEM (CONSULT)
Example: CAN DIAG SUPPORT MNTR indication
Without PAST
DTC Self-diagnosis item
(CONSULT indication) DTC detection condition
Inspection/Action
U1000 CAN COMM CIRCUIT ECM
When ECM is not transmitting or receiving CAN
communication signal of OBD (emission-relat-
ed diagnosis) for 2 seconds or more.
Start the inspection. Re-
fer to the applicable sec-
tion of the indicated
control unit.
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 communi-
cation signal other than OBD (emission-related diagnosis)
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.
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”.
JSMIA0964GB
Item
PRESENT Description
Initial diagnosis OK Normal at present
NG Control unit e rror (Except for some control units)
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LAN-14
< SYSTEM DESCRIPTION >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
With PAST
Transmission diagnosisOK Normal at present
UNKWN Unable to transmit signals for 2 seconds or more.
Diagnosis not performed
Control unit name
(Reception diagnosis) OK Normal at present
UNKWN Unable to receive signals for 2 seconds or more.
Diagnosis not performed
No control unit for receiving signals. (No applicable optional parts)
Item
PRESENT Description
ItemPRESENT PAST Description
Transmission diagnosis OKOK Normal at present and in the past
1 – 39 Normal at present, but unable to transmit signals for 2 seconds or more
in the past. (The number indicates the number of ignition switch cycles
from OFF to ON.)
UNKWN 0 Unable to transmit signals for 2 seconds or more at present.
Control unit name
(Reception diagnosis) OK
OK Normal at present and in the past
1 – 39 Normal at present, but unable to receive signals for 2 seconds or more
in the past. (The number indicates the number of ignition switch cycles
from OFF to ON.)
UNKWN 0 Unable to receive signals for 2 seconds or more at present.
Not diagnosed – Diagnosis not performed.
No control unit for receiving signals. (No applicable optional parts)
Revision: August 2015
2016 Versa Note

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LAN
TROUBLE DIAGNOSISLAN-15
< SYSTEM DESCRIPTION > [CAN FUNDAMENTAL]
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How to Use CAN Communication Signal ChartINFOID:0000000012433338
The CAN communication signal chart lists the signals trans
mitted/received among control units. It is useful for
detecting the root cause by finding a signal related to the symptom, and by checking transmission and recep-
tion unit.
JSMIA0446GB
Revision: August 2015 2016 Versa Note

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LAN-16
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Trouble Diagnosis Flow ChartINFOID:0000000012433339
DESCRIPTION
DETAIL OF TROUBLE DIAGNOSIS FLOW CHART
1.INTERVIEW WITH CUSTOMER
Interview with the customer is important to detect the root cause of CAN communication system errors and to
understand vehicle condition and symptoms for proper trouble diagnosis.
Points in interview
• What: Parts name, system name
• When: Date, Frequency
• Where: Road condition, Place
• In what condition: Driving condition/environment
• Result: Symptom
Notes for checking error symptoms:
• Check normal units as well as error symptoms.
- Example: Circuit between ECM and the combination me ter is judged normal if the customer indicates
tachometer functions normally.
JSMIA0528GB
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LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-17
< BASIC INSPECTION > [CAN FUNDAMENTAL]
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• When a CAN communication system error is present, multiple control units may malfunction or go into fail-
safe mode.
• Indication of the combination meter is important to detect the root cause because it is the most obvious to
the customer, and it performs CAN communication with many units.
>> GO TO 2.
2.INSPECTION OF VEHICLE CONDITION
Check whether the symptom is reproduced or not.
NOTE:
Do not turn the ignition switch OFF or disconnect the 12V battery cable while reproducing the error. The error
may temporarily correct itself, making it difficult to determine the root cause.
>> GO TO 3.
3.CHECK OF CAN SYSTEM TYPE (H OW TO USE CAN SYSTEM TYPE SPECIFICATION CHART)
Determine CAN system type based on vehicle equipment.
NOTE:
• This chart is used if CONSULT does not automatically recognize CAN system type.
• There are two styles for CAN system type specification charts. Depending on the number of available sys- tem types, either style A or style B may be used.
• CAN System Type Specification Chart (Style A) NOTE:
SKIB8717E
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LAN-18
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
CAN system type is easily checked with the vehicle equi
pment identification information shown in the chart.
• CAN System Type Specification Chart (Style B) NOTE:
JSMIA0529GB
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LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-19
< BASIC INSPECTION > [CAN FUNDAMENTAL]
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CAN system type is easily checked with the vehicle equi
pment identification information shown in the chart.
>> GO TO 4.
4.CREATE INTERVIEW SHEET
Fill out the symptom described by the customer, vehicle condition, and CAN system type on the interview
sheet.
NOTE:
JSMIA0530GB
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LAN-20
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
Interview Sheet (Example)
>> GO TO 5.
5.DETECT THE ROOT CAUSE
CAN diagnosis function of CONSULT detects a root cause.
>> GO TO 6.
6.REPAIR OR REPLACE MALFUNCTIONING PART
Repair or replace malfunctioning parts ident ified by CAN diagnosis function of CONSULT.
Main line>>Refer to LAN-40, "
Main Line".
Branch line>>Refer to LAN-40, "
Branch Line".
Short circuit>>Refer to LAN-40, "
Short Circuit".
JSMIA0531GB
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LAN
HOW TO USE THIS SECTIONLAN-21
< HOW TO USE THIS MANUAL > [CAN]
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HOW TO USE THIS MANUAL
HOW TO USE THIS SECTION
InformationINFOID:0000000012433340
• “CAN” of LAN Section describes information
peculiar to a vehicle and inspection procedures.
• For trouble diagnosis procedure, refer to LAN-16, "
Trouble Diagnosis Flow Chart" of “CAN FUNDAMEN-
TA L ” .
Abbreviation ListINFOID:0000000012433341
Unit name abbreviations in CONSULT CAN diagnosis and in this section are as per the following list.
Abbreviation Unit name
A-BAG Air bag diagnosis sensor unit
ABS ABS actuator and electric unit (control unit)
AV AV control unit
AVM Around view monitor control unit
BCM BCM
DLC Data link connector
ECM ECM
EPS EPS control unit
IPDM-E IPDM E/R
M&A Combination meter
STRG Steering angle sensor
TCM TCM
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LAN-22
< PRECAUTION >[CAN]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000012433342
The Supplemental Restraint System such as “A IR 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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses 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 electri c 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 DiagnosisINFOID:0000000012433343
CAUTION:
Follow the instructions listed below. Fail ure to do this may cause damage to parts:
• 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 th e battery cable from the negative terminal when
checking the harness.
Precautions for Harness RepairINFOID:0000000012433344
• 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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