2008 NISSAN LATIO Service Repair Manual

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Page 2001 of 2771

NISSAN LATIO 2008 Service Repair Manual LAN-10
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Example: Data link connector branch line open circuit
NOTE:
• When data link connector branch line is open, transmission and receptio

Page 2002 of 2771

NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS
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P Example: Main Line Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Open

Page 2003 of 2771

NISSAN LATIO 2008 Service Repair Manual LAN-12
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
CAN Diagnosis with CONSULT-III
INFOID:0000000001711207
CAN diagnosis on CONSULT-III extracts the root cause by receiving the following

LAN-12
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
CAN Diagnosis with CONSULT-III
INFOID:0000000001711207
CAN diagnosis on CONSULT-III extracts the root cause by receiving the following information.
• Response to the system call
• Control unit diagnosis information
• Self-diagnosis
• CAN diagnostic support monitor
Self-DiagnosisINFOID:0000000001711208
CAN Diagnostic Support MonitorINFOID:0000000001711209
MONITOR ITEM (CONSULT-III)
Unit name Symptom
ECM• Engine torque limiting is affected, and shift harshness increases.
• Engine speed drops.
BCM• Reverse warning chime does not sound.
• The front wiper moves under continuous operation mode even though the front
wiper switch being in the intermittent position.
• The room lamp does not turn ON.
• The engine does not start (if an error or malfunction occurs while turning the igni-
tion switch OFF.)
• The steering lock does not release (if an error or malfunction occurs while turning
the ignition switch OFF.)
EPS control unit The steering effort increases.
Combination meter• The tachometer and the speedometer do not move.
• Warning lamps turn ON.
• Indicator lamps do not turn ON.
ABS actuator and electric unit (control unit) Normal operation.
TCM No impact on operation.
IPDM E/RWhen the ignition switch is ON,
• The headlamps (Lo) turn ON.
• The cooling fan continues to rotate.
DTCSelf-diagnosis item
(CONSULT-III indication)DTC detection condition Inspection/Action
U1000 CAN COMM CIRCUITWhen ECM is not transmitting or receiving CAN
communication signal of OBD (emission-related
diagnosis) for 2 seconds or more.
Start the inspection. Re-
fer to the applicable sec-
tion of the indicated
control unit. When a control unit (except for ECM) is not
transmitting or receiving CAN communication
signal for 2 seconds or more.
U1001 CAN COMM CIRCUITWhen ECM is not transmitting or receiving CAN
communication signal other than OBD (emis-
sion-related diagnosis) for 2 seconds or more.
U1002 SYSTEM COMMWhen a control unit is not transmitting or receiv-
ing CAN communication signal for 2 seconds or
less.
U1010 CONTROL UNIT [CAN]When an error is detected during the initial diag-
nosis for CAN controller of each control unit.Replace the control unit
indicating “U1010”.

Page 2004 of 2771

NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS
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Example: CAN DIAG SUPPORT MNTR indication
Without PAST
With PAST
MONITOR ITEM (ON-BOARD DIAGNOSIS)
NOT

Page 2005 of 2771

NISSAN LATIO 2008 Service Repair Manual LAN-14
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Example: Vehicle Display
How to Use CAN Communication Signal ChartINFOID:0000000001711210
The CAN communication signal chart lists the

Page 2006 of 2771

NISSAN LATIO 2008 Service Repair Manual DIAGNOSIS AND REPAIR WORKFLOW
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< BASIC INSPECTION >[CAN FUNDAMENTAL]
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Trouble Diagnosis Flow ChartINFOID:0000000001

Page 2007 of 2771

NISSAN LATIO 2008 Service Repair Manual LAN-16
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
• Indication of the combination meter is important to detect the root cause because it is the most obvious to
the customer,

Page 2008 of 2771

NISSAN LATIO 2008 Service Repair Manual DIAGNOSIS AND REPAIR WORKFLOW
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CAN system type is easily checked with the vehicle equipment identification information show

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