Nissan Murano Z51 (2012 year). Manual — part 39
LAN
TROUBLE DIAGNOSIS
LAN-13
< SYSTEM DESCRIPTION >
[CAN FUNDAMENTAL]
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Example: CAN DIAG SUPPORT MNTR indication
Without PAST
With PAST
MONITOR ITEM (ON-BOARD DIAGNOSIS)
NOTE:
For some models, CAN communication diagnosis result is received from the vehicle monitor.
JSMIA0015GB
Item
PRSNT
Description
Initial diagnosis
OK
Normal at present
NG
Control unit error (Except for some control units)
Transmission diagnosis
OK
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
PRSNT
PAST
Description
Transmission diagnosis
OK
OK
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.
–
–
Diagnosis not performed.
No control unit for receiving signals. (No applicable optional parts)
Revision: 2013 February
2012 MURANO
LAN-14
< SYSTEM DESCRIPTION >
[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Example: Vehicle Display
How to Use CAN Communication Signal Chart
INFOID:0000000007544237
The CAN communication signal chart lists the signals needed for trouble diagnosis. It is useful for detecting
the root cause by finding a signal related to the symptom, and by checking transmission and reception unit.
Item
Result indi-
cated
Error counter
Description
CAN_COMM
(Initial diagnosis)
OK
0
Normal at present
NG
1 – 50
Control unit error
(The number indicates how many times diagnosis has been
run.)
CAN_CIRC_1
(Transmission diagnosis)
OK
0
Normal at present
UNKWN
1 – 50
Unable to transmit for 2 seconds or more at present.
(The number indicates how many times diagnosis has been
run.)
CAN_CIRC_2 – 9
(Reception diagnosis of each unit)
OK
0
Normal at present
UNKWN
1 – 50
Unable to transmit for 2 seconds or more at present.
(The number indicates how many times diagnosis has been
run.)
Diagnosis not performed.
No control unit for receiving signals. (No applicable optional
parts)
SKIB8715E
Revision: 2013 February
2012 MURANO
LAN
DIAGNOSIS AND REPAIR WORKFLOW
LAN-15
< BASIC INSPECTION >
[CAN FUNDAMENTAL]
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Trouble Diagnosis Flow Chart
INFOID:0000000007544238
Trouble Diagnosis Procedure
INFOID:0000000007544239
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
NOTE:
• Check normal units as well as error symptoms.
- Example: Circuit between ECM and the combination meter is judged normal if the customer indicates
tachometer functions normally.
• When a CAN communication system error is present, multiple control units may malfunction or go into fail-
safe mode.
JSMIA0528GB
Revision: 2013 February
2012 MURANO
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, and it performs CAN communication with many units.
INSPECTION OF VEHICLE CONDITION
Check whether the symptom is reproduced or not.
NOTE:
Do not turn the ignition switch OFF or disconnect the battery cable while reproducing the error. The error may
temporarily correct itself, making it difficult to determine the root cause.
CHECK OF CAN SYSTEM TYPE (HOW 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
Revision: 2013 February
2012 MURANO
LAN
DIAGNOSIS AND REPAIR WORKFLOW
LAN-17
< BASIC INSPECTION >
[CAN FUNDAMENTAL]
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CAN system type is easily checked with the vehicle equipment identification information shown in the chart.
CAN System Type Specification Chart (Style B)
NOTE:
JSMIA0017GB
Revision: 2013 February
2012 MURANO
LAN-18
< BASIC INSPECTION >
[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
CAN system type is easily checked with the vehicle equipment identification information shown in the chart.
CREATE INTERVIEW SHEET
Fill out the symptom described by the customer, vehicle condition, and CAN system type on the interview
sheet.
JSMIA0018GB
Revision: 2013 February
2012 MURANO
LAN
DIAGNOSIS AND REPAIR WORKFLOW
LAN-19
< BASIC INSPECTION >
[CAN FUNDAMENTAL]
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Interview Sheet (Example)
DETECT THE ROOT CAUSE
CAN diagnosis function of CONSULT detects the root cause.
JSMIA0019GB
Revision: 2013 February
2012 MURANO
LAN-20
< HOW TO USE THIS MANUAL >
[CAN]
HOW TO USE THIS SECTION
HOW TO USE THIS MANUAL
HOW TO USE THIS SECTION
Caution
INFOID:0000000007544240
• This section describes information peculiar to a vehicle and inspection procedures.
• For trouble diagnosis procedure, refer to
LAN-15, "Trouble Diagnosis Procedure"
.
Abbreviation List
INFOID:0000000007544241
Unit name abbreviations in CONSULT CAN diagnosis and in this section are as per the following list.
Abbreviation
Unit name
4WD
AWD control unit
A-BAG
Air bag diagnosis sensor unit
ABS
ABS actuator and electric unit (control unit)
ADP
Driver seat control unit
AV
AV control unit
BCM
BCM
DLC
Data link connector
ECM
ECM
HVAC
A/C auto amp.
IPDM-E
IPDM E/R
M&A
Combination meter
PWBD
Automatic back door control unit
STRG
Steering angle sensor
TCM
TCM
Revision: 2013 February
2012 MURANO
LAN
PRECAUTIONS
LAN-21
< PRECAUTION >
[CAN]
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PRECAUTION
PRECAUTIONS
FOR USA AND CANADA
FOR USA AND CANADA : Precaution for Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER"
INFOID:0000000007544242
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 “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision that 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 “SRS AIR BAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, never 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 3 minutes before performing any service.
FOR USA AND CANADA : Precautions for Trouble Diagnosis
INFOID:0000000007544243
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.
FOR USA AND CANADA : Precautions for Harness Repair
INFOID:0000000007544244
• 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
Revision: 2013 February
2012 MURANO
LAN-22
< PRECAUTION >
[CAN]
PRECAUTIONS
• 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.
FOR MEXICO
FOR MEXICO : Precaution for Supplemental Restraint System (SRS) "AIR BAG" and
"SEAT BELT PRE-TENSIONER"
INFOID:0000000007544245
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. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.
WARNING:
Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision that 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 “SRS AIR BAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, never 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 3 minutes before performing any service.
FOR MEXICO : Precautions for Trouble Diagnosis
INFOID:0000000007544246
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.
SKIB8767E
Revision: 2013 February
2012 MURANO
LAN
PRECAUTIONS
LAN-23
< PRECAUTION >
[CAN]
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FOR MEXICO : Precautions for Harness Repair
INFOID:0000000007544247
• 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
Revision: 2013 February
2012 MURANO
LAN-24
< BASIC INSPECTION >
[CAN]
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Interview Sheet
INFOID:0000000007544248
SKIB8898E
Revision: 2013 February
2012 MURANO
LAN
CAN COMMUNICATION SYSTEM
LAN-25
< SYSTEM DESCRIPTION >
[CAN]
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SYSTEM DESCRIPTION
CAN COMMUNICATION SYSTEM
CAN System Specification Chart
INFOID:0000000007544249
Determine CAN system type from the following specification chart.
NOTE:
Refer to
LAN-15, "Trouble Diagnosis Procedure"
for how to use CAN system specification chart.
×
: Applicable
VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Check CAN system type from the vehicle shape and equipment.
CAN Communication Signal Chart
INFOID:0000000007544250
LAN-14, "How to Use CAN Communication Signal Chart"
for how to use CAN communication signal
chart.
NOTE:
Refer to
for the abbreviations of the connecting units.
Body type
Wagon
Axle
2WD
AWD
Engine
VQ35DE
Transmission
CVT
Brake control
VDC
Automatic drive positioner
×
×
Automatic back door system
×
×
Color display
×
×
×
×
CAN system type
1
2
3
4
5
6
JPMIA1349GB
Revision: 2013 February
2012 MURANO
LAN-26
< SYSTEM DESCRIPTION >
[CAN]
CAN COMMUNICATION SYSTEM
T: Transmit
R: Receive
Signal name/Connecting unit
ECM
ADP
PW
BD
4WD
AV
HV
AC
M&A
BCM
STRG
ABS
TCM
IPDM
-E
A/C compressor request signal
T
R
Accelerator pedal position signal
T
R
R
R
ASCD CRUISE indicator signal
T
R
ASCD operation signal
T
R
ASCD SET indicator signal
T
R
Closed throttle position signal
T
R
Cooling fan speed request signal
T
R
Engine and CVT integrated control signal
T
R
R
T
Engine coolant temperature signal
T
R
R
R
Engine speed signal
T
R
R
R
R
Engine status signal
T
R
R
Fuel consumption monitor signal
T
R
R
Fuel filler cap warning display signal
T
R
Malfunctioning indicator lamp signal
T
R
Power generation command value signal
T
R
Hazard request signal
T
R
Sleep-ready signal
T
R
T
R
R
T
Wake up signal
T
R
T
R
AWD LOCK indicator lamp signal
T
R
AWD signal
T
R
AWD malfunction signal
T
R
AWD warning lamp signal
T
R
A/C switch/indicator signal
T
R
R
T
A/C switch operation signal
T
R
Rear window defogger switch signal
*
T
R
System setting signal
T
R
R
T
Voice recognition signal
T
R
A/C switch signal
R
T
T
Blower fan motor switch signal
R
T
T
Brake fluid level switch signal
T
R
Distance to empty signal
R
T
Fuel filler cap warning reset signal
R
T
Fuel level low warning signal
R
T
Fuel level sensor signal
R
T
Odometer signal
T
R
Overdrive control switch signal
T
R
Revision: 2013 February
2012 MURANO
LAN
CAN COMMUNICATION SYSTEM
LAN-27
< SYSTEM DESCRIPTION >
[CAN]
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Parking brake switch signal
R
T
Seat belt buckle switch signal
T
R
Vehicle speed signal
R
R
R
R
T
R
R
R
R
R
R
T
R
Automatic back door request signal
R
T
Back door switch signal
R
R
T
Buzzer output signal
R
T
Door switch signal
R
R
R
T
R
Door unlock signal
R
T
Front fog light request signal
T
R
Front wiper request signal
T
R
High beam request signal
R
T
R
Horn reminder signal
T
R
Ignition switch ON signal
R
T
R
R
T
Ignition switch signal
R
T
Interlock/PNP switch signal
T
R
R
T
Key ID signal
R
T
Key switch signal
R
T
Key warning lamp signal
R
T
Low beam request signal
T
R
Low tire pressure warning lamp signal
R
T
Meter display signal
R
T
Oil pressure switch signal
R
T
R
T
Position light request signal
R
T
R
Rear window defogger control signal
T
R
R
R
*
T
Sleep wake up signal
R
R
R
T
R
Starter control relay signal
T
R
Starter relay status signal
T
R
R
T
Starting mode signal
R
T
Stop lamp switch signal
T
R
R
T
Theft warning horn request signal
T
R
TPMS malfunction warning lamp signal
R
T
Steering angle sensor signal
R
R
T
R
ABS operation signal
T
R
ABS warning lamp signal
R
T
Brake warning lamp signal
R
T
Decel G sensor signal
R
T
Signal name/Connecting unit
ECM
ADP
PW
BD
4WD
AV
HV
AC
M&A
BCM
STRG
ABS
TCM
IPDM
-E
Revision: 2013 February
2012 MURANO
LAN-28
< SYSTEM DESCRIPTION >
[CAN]
CAN COMMUNICATION SYSTEM
*: Models with BOSE system
NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
Side G sensor signal
R
T
SLIP indicator lamp signal
R
T
TCS operation signal
T
R
VDC OFF indicator lamp signal
R
T
VDC operation signal
T
R
Yaw rate sensor signal
R
T
Current gear position signal
R
T
CVT position indicator signal
R
R
R
R
T
CVT self-diagnosis signal
R
T
Input shaft revolution signal
R
T
N range signal
R
R
T
OD OFF indicator signal
R
T
Output shaft revolution signal
R
T
P range signal
R
R
R
T
R range signal
R
T
Shift position signal
R
R
T
A/C compressor feedback signal
R
R
T
Detention switch signal
R
T
Front wiper stop position signal
R
T
High beam status signal
R
T
Low beam status signal
R
T
Push-button ignition switch status signal
R
T
Signal name/Connecting unit
ECM
ADP
PW
BD
4WD
AV
HV
AC
M&A
BCM
STRG
ABS
TCM
IPDM
-E
Revision: 2013 February
2012 MURANO
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