Murano Cross Cabriolet Z51 (2013 year). Manual — part 46
HAC-16
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
SYSTEM
*: Inlet status is displayed by indicator during activating automatic control
AIR DISTRIBUTION
Fail-safe
INFOID:0000000008460636
FAIL-SAFE FUNCTION
Switch/Dial position
Door position
Mode door
In
ta
ke
do
or
Up
pe
r ve
nt
ila
to
r do
or
Air mix door
V
e
n
tila
to
r do
or
M
ax
. co
ol do
or
De
fros
te
r do
or
Fo
ot
do
or
(Driver side)
(Pa
sse
ng
er s
id
e
)
AUTO switch
AUTO
—
—
—
—
MODE switch
A
A
A
A
B
B
A
B
C
B
B
C
C
B
B
B
DEF switch
C
C
C
A
Intake switch
*
—
—
—
—
A
B
UPPER VENT switch
—
A – B
C
Temperature control
dial (Driver side)
DUAL
switch:
OFF
60
°
F
—
A
A
61
°
F – 89
°
F
AUTO
AUTO
90
°
F
B
B
DUAL
switch:
ON
60
°
F
A
—
61
°
F – 89
°
F
AUTO
90
°
F
B
Temperature control dial (Passen-
ger side)
60
°
F
—
A
61
°
F – 89
°
F
AUTO
90
°
F
B
ON·OFF switch
OFF
C
B
B
C
—
Discharge air flow
MODE/DEF
set position
Condition
Air outlet/distribution
Ventilator
Foot
Defroster
Front
Upper
Rear
Front
Rear
Center
Side
• DUAL
switch:
OFF
• UPPER
VENT
switch:
ON
40%
41%
8%
11%
—
—
—
18%
24%
10%
17%
23%
8%
—
—
12%
12%
15.5%
27.5%
12%
21%
—
11%
11%
14%
24%
11%
29%
—
11%
10.5%
12.5%
—
—
66%
Revision: 2012 October
2013 Murano CrossCabriolet
SYSTEM
HAC-17
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
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When a communication error between A/C auto amp. and AV control unit and preset switch continued for
approximately 30 seconds or more, air conditioning is controlled under the following conditions.
Set temperature
: Setting before communication error occurs
Air outlet
: Automatic control
Air flow
: Automatic control
Air inlet
: Fresh air intake (FRE)
A/C switch
: ON
Revision: 2012 October
2013 Murano CrossCabriolet
HAC-18
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
OPERATION
OPERATION
Switch Name and Function
INFOID:0000000008460637
OPERATION AND DISPLAY OF AUTOMATIC AIR CONDITIONING SYSTEM
Display: Display unit
BOSE audio with navigation
BOSE audio without navigation
• Air conditioning operation status is indicated on display in display unit.
• When “STATUS” on multifunction switch is pressed while air conditioning is in the ON position the display
changes to state indication display of air conditioning system. When air conditioning is operated while navi-
gation system or audio system is displayed, air conditioning state is indicated in the lower portion of display
for several seconds.
• When MODE switch is pressed while air conditioning is in the OFF position, state indication display is indi-
cated for several seconds.
Operation: Preset switch
JMIIA1887GB
JMIIA1888GB
1.
Temperature control dial (driver side) 2.
AUTO switch
3.
DEF switch
4.
ON·OFF switch
5.
DUAL switch
6.
Temperature control dial (passenger
side)
JMIIA1889ZZ
Revision: 2012 October
2013 Murano CrossCabriolet
OPERATION
HAC-19
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
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7.
MODE switch
8.
UPPER VENT switch
9.
Fan control dial
10. Intake switch
11.
A/C switch
Switch name
Function
Temperature control
dial (driver side)
Setting temperature can be set according to dial operation within a range between 60
°
F – 90
°
F at a rate
of 1
°
F per adjustment.
• Clock wise rotation: Setting temperature increases
• Counterclockwise rotation: Setting temperature decreases
NOTE:
When air conditioning is OFF, setting temperature can be set only while air conditioning status screen
(only when MODE switch is pressed) is indicated.
AUTO switch
• AUTO switch indicator turns ON and air conditioning becomes the following status, when this switch is
pressed while air conditioning is ON.
- Air outlet: Automatic control
- Air flow: Automatic control
- Air inlet: Automatic control
- A/C switch: ON
• Air conditioning turns ON and operates according to the following status, when this switch is pressed
while air conditioning is OFF. (AUTO switch indicator turns ON)
- Air outlet: Automatic control
- Air flow: Automatic control
- Air inlet: Automatic control
- A/C switch: ON
NOTE:
When air outlet or air flow is manually operated while AUTO switch indicator is ON, AUTO switch indica-
tor turns OFF. However, automatic control continues for other functions than air outlet or air flow.
DEF switch
DEF mode (switch indicator) changes between ON
⇔
OFF each time switch is pressed.
• When this switch is pressed while air conditioning is ON
- Air conditioning becomes the following status when DEF mode is turned ON.
• Air outlet: DEF
• Air flow: Settings set before DEF mode is turned ON
• Air inlet: Fresh air intake
• A/C switch: ON
- Air conditioning becomes the following status when DEF mode is turned OFF.
• Air outlet: Settings set before DEF mode is turned ON
• Air flow: Settings set before DEF mode is turned OFF
• Air inlet: Settings set before DEF mode is turned OFF
• A/C switch: Settings set before DEF mode is turned OFF
• When this switch is pressed while air conditioning is OFF
- Air conditioning turns ON and operates in the following status, when DEF mode is turned ON.
• Air outlet: DEF
• Air flow: Automatic control
• Air inlet: Fresh air intake
• A/C switch: ON
- Air conditioning becomes the following status when DEF mode is turned OFF.
• Air outlet: Automatic control
• Air flow: Settings set before DEF mode is turned OFF
• Air inlet: Settings set before DEF mode is turned OFF
• A/C switch: Settings set before DEF mode is turned OFF
NOTE:
When DEF mode is turned ON while AUTO switch indicator is turned ON, AUTO switch indicator turns
OFF. However, automatic air flow control continues.
ON·OFF switch
Air conditioning turns ON
⇔
OFF each time this switch is pressed.
• When this switch is pressed while air conditioning is ON
- Air conditioning turns OFF and becomes the following status, when this switch is pressed.
• Air outlet: FOOT
• Air flow: OFF
• Air inlet: Fresh air intake
• A/C switch: OFF
• When this switch is pressed while air conditioning is OFF
- Air conditioning turns ON and operates according to the settings set before air conditioning is turned
OFF, when this switch is pressed.
Revision: 2012 October
2013 Murano CrossCabriolet
HAC-20
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
OPERATION
DUAL switch
Left and right ventilation temperature separately control (switch indicator) changes between ON
⇔
OFF
each time this switch is pressed while blower motor is operated.
NOTE:
• Setting temperature for passenger side is the same as that for driver side when left and right ventilation
temperature separately control is OFF.
• DUAL switch operation is not accepted when DEF mode is ON.
Temperature control
dial (passenger side)
• Left and right ventilation temperature separately control (DUAL switch indicator) turns ON according
to dial operation. Air flow temperature of passenger side can be changed without changing air flow
temperature of driver side.
• Setting temperature can be set according to dial operation within a range between 60
°
F – 90
°
F at a
rate of 1
°
F per adjustment.
- Clock wise rotation: Setting temperature increases
- Counterclockwise rotation: Setting temperature decreases
NOTE:
• When air conditioning is OFF, setting temperature can be set only while air conditioning status screen
(only when MODE switch is pressed) is indicated.
• Temperature control dial (passenger side) operation is not accepted when DEF mode is ON.
MODE switch
Air outlet changes from VENT
⇒
B/L
⇒
FOOT
⇒
D/F
⇒
VENT each time this switch is pressed.
NOTE:
• Air outlet can be changed when air conditioning is in OFF status.
• Automatic air outlet control is cancelled (AUTO switch indicator turns OFF), when MODE switch is
pressed while AUTO switch indicator is ON.
UPPER VENT switch
Upper ventilator control (switch indicator) changes between ON
⇔
OFF each time this switch is pressed
while blower motor is operated.
NOTE:
• When air conditioning is OFF, upper ventilator control can be changed only while air conditioning status
screen (only when MODE switch is pressed) is indicated.
• UPPER VENT switch operation is not accepted when DEF mode is ON.
Fan control dial
• Air flow can be set within a range between 1st – 7th speed according to dial operation.
- Clock wise rotation: Air flow increases
- Counterclockwise rotation: Air flow decreases
• Air conditioning turns ON and operates according to the following status, when this switch is pressed
while air conditioning is OFF.
- Air outlet: Automatic control
- Air flow: Automatic control
- Air inlet: Settings set before fan control dial is operated
- A/C switch: Settings set before air conditioning is turned OFF
NOTE:
Automatic air flow control is cancelled (AUTO switch indicator turns OFF), when fan control dial is oper-
ated while AUTO switch indicator is ON.
Intake switch
• Air inlet changes between recirculation (REC)
⇔
fresh air intake (FRE) each time this switch is
pressed.
- Switch indicator ON: Recirculation
- Switch indicator OFF: Fresh air intake
• Switch indicator blinks 2 times and air inlet is set to automatic control when switch is pressed and held
for 2 seconds or more. (Switch indicator indicates air inlet status during automatic control)
NOTE:
• Air inlet can be changed when air conditioning is in OFF status.
• REC switch operation is not accepted when air outlet is D/F or DEF.
• A/C switch turns ON when REC switch is turned ON while A/C switch is OFF.
A/C switch
Compressor control (switch indicator) changes between ON
⇔
OFF each time this switch is pressed
while blower motor is operated.
NOTE:
• A/C switch cannot be turned ON when blower motor is OFF.
• A/C switch cannot be turned OFF when air outlet is D/F or DEF.
• Air inlet changes to fresh air intake when A/C switch is turned OFF while air inlet is set to recirculation.
Switch name
Function
Revision: 2012 October
2013 Murano CrossCabriolet
DIAGNOSIS SYSTEM (A/C AUTO AMP.)
HAC-21
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
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DIAGNOSIS SYSTEM (A/C AUTO AMP.)
Description
INFOID:0000000008460638
Air conditioning system performs self-diagnosis, operation check, function diagnosis, and various settings
using diagnosis function of each control unit.
CONSULT Function
INFOID:0000000008460639
CONSULT performs the following functions via CAN communication with A/C auto amp.
NOTE:
Diagnosis should be performed with engine running. Door motor operation speeds become slower and NO
results may be returned even for normal operation if battery voltage drops below 12 V during self-diagnosis.
ECU IDENTIFICATION
Part number of A/C auto amp. can be checked.
SELF-DIAGNOSIS RESULTS
Diagnosis result that is judged by A/C auto amp. can be checked. Refer to
.
DATA MONITOR
Input/output signal of A/C auto amp. can be checked.
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Display item list
ECU
Diagnostic item
(CONSULT)
A/C auto amp.
HVAC
Self Diagnostic Result
Data Monitor
Active Test
Work support
AV control unit
MULTI AV
Self Diagnostic Result
Multi AV system on board diagnosis function
ECM
ENGINE
Self Diagnostic Result
Data Monitor
IPDM E/R
IPDM E/R
Self Diagnostic Result
Data Monitor
Auto active test
Diagnostic mode
Description
Ecu Identification
Displays the part number of A/C auto amp.
Self Diagnostic Result
Displays the diagnosis results judged by A/C auto amp.
Data Monitor
Displays the input/output signal of A/C auto amp.
Active Test
The signals used to activate each device are forcibly supplied from A/C auto amp.
Work support
Changes the setting for each setting function.
Monitor item [Unit]
Description
AMB TEMP SEN
[
°
C (
°
F)]
Ambient temperature value converted from ambient sensor signal received from ambi-
ent sensor
IN-VEH TEMP
[
°
C (
°
F)]
In-vehicle temperature value converted from in-vehicle sensor signal received from in-
vehicle sensor
INT TEMP SEN
[
°
C (
°
F)]
Evaporator fin temperature value converted from intake sensor signal received from in-
take sensor
Revision: 2012 October
2013 Murano CrossCabriolet
HAC-22
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
DIAGNOSIS SYSTEM (A/C AUTO AMP.)
ACTIVE TEST
The signals used to activate each device forcibly supplied from A/C auto amp. operation check of air condi-
tioning system can be performed.
Check each output device
*: Position of mode door motor is set to the status of automatic control that is selected by foot position setting
trimmer. Refer to
HAC-36, "Foot Position Setting Trimmer"
.
NOTE:
Perform the inspection of each output device after starting the engine because the compressor is operated.
WORK SUPPORT
Setting change of each setting functions and automatic adjustment of components can be performed.
SUNLOAD SEN
[w/m
2
]
Sunload value converted from sunload sensor signal received from sunload sensor
AMB SEN CAL
[
°
C (
°
F)]
Ambient temperature value calculated by A/C auto amp.
IN-VEH CAL
[
°
C (
°
F)]
In-vehicle temperature value calculated by A/C auto amp.
INT TEMP CAL
[
°
C (
°
F)]
Evaporator fin temperature value calculated by A/C auto amp.
SUNL SEN CAL
[w/m
2
]
Sunload value calculated by A/C auto amp.
COMP REQ SIG
[On/Off]
Displays A/C ON signal ON/OFF status transmitted to ECM.
FAN REQ SIG
[On/Off]
Displays blower fan ON signal ON/OFF status transmitted to ECM.
FAN DUTY
Duty ratio of blower motor judged by A/C auto amp.
XM
Target discharge air temperature judged by A/C auto amp. depending on the tempera-
ture setting and the value from each sensor
ENG COOL TEMP
[
°
C (
°
F)]
Engine coolant temperature signal value received from ECM via CAN communication
VEHICLE SPEED
[km/h
(mph)]
Vehicle speed signal value received from combination meter via CAN communication
Monitor item [Unit]
Description
Test item
Description
HVAC TEST
The operation check of air conditioning system can be performed by selecting the mode.
Refer to the following table for the conditions of each mode.
Test item
MODE 1
MODE 2
MODE 3
MODE 4
MODE 5
MODE 6
MODE 7
Mode door motor position
VENT
VENT
B/L
B/L
FOOT
*
D/F
DEF
Intake door motor position
REC
REC
20% FRE
20% FRE
FRE
FRE
FRE
Air mix door motor (driver side/
passenger side) position
FULL COLD
FULL HOT
FULL COLD
FULL HOT
FULL HOT
FULL HOT
FULL HOT
Blower motor (duty ratio)
35%
35%
61%
61%
91%
91%
35%
Magnet clutch
ON
ON
ON
ON
OFF
OFF
ON
Upper ventilator door motor
position
OPEN
CLOSE
OPEN
CLOSE
CLOSE
CLOSE
CLOSE
Work item
Description
Refer to
TEMP SET CORRECT
Setting change of temperature setting trimmer can be performed.
HAC-35, "Temperature
Setting Trimmer"
REC MEMORY SET
Setting change of inlet port memory function (REC) can be per-
formed.
HAC-35, "Inlet Port Mem-
ory Function (REC)"
FRE MEMORY SET
Setting change of inlet port memory function (FRE) can be per-
formed.
HAC-36, "Inlet Port Mem-
ory Function (FRE)"
BLOWER SET
Setting change of foot position setting trimmer can be performed.
HAC-36, "Foot Position
Setting Trimmer"
Revision: 2012 October
2013 Murano CrossCabriolet
DIAGNOSIS SYSTEM (A/C AUTO AMP.)
HAC-23
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
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NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of WORK SUPPORT may be cancelled.
Revision: 2012 October
2013 Murano CrossCabriolet
HAC-24
< ECU DIAGNOSIS INFORMATION >
[AUTOMATIC AIR CONDITIONING]
A/C AUTO AMP.
ECU DIAGNOSIS INFORMATION
A/C AUTO AMP.
Reference Value
INFOID:0000000008460640
CONSULT DATA MONITOR REFERENCE VALUES
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor item
Condition
Value/Status
AMB TEMP SEN
Ignition switch ON
Equivalent to ambient tem-
perature
IN-VEH TEMP
Ignition switch ON
Equivalent to in-vehicle tem-
perature
INT TEMP SEN
Ignition switch ON
Equivalent to evaporator fin
temperature
SUNLOAD SEN
Ignition switch ON
Equivalent to sunload
amount
AMB SEN CAL
Ignition switch ON
Equivalent to ambient tem-
perature
IN-VEH CAL
Ignition switch ON
Equivalent to in-vehicle tem-
perature
INT TEMP CAL
Ignition switch ON
Equivalent to evaporator fin
temperature
SUNL SEN CAL
Ignition switch ON
Equivalent to sunload
amount
COMP REQ SIG
Engine: Run at idle after
warming up
A/C switch: ON
(Compressor operation sta-
tus)
On
A/C switch: OFF
Off
FAN REQ SIG
Engine: Run at idle after
warming up
Blower motor: ON
On
Blower motor: OFF
Off
FAN DUTY
Engine: Run at idle after
warming up
Blower motor: ON
25 – 81
Blower motor: OFF
0
XM
Ignition switch ON
Value according to target air
flow temperature
ENG COOL TEMP
Ignition switch ON
Equivalent to engine coolant
temperature
VEHICLE SPEED
Driving
Equivalent to speedometer
reading
JMIIA0690ZZ
Revision: 2012 October
2013 Murano CrossCabriolet
A/C AUTO AMP.
HAC-25
< ECU DIAGNOSIS INFORMATION >
[AUTOMATIC AIR CONDITIONING]
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Fail-safe
INFOID:0000000008460641
FAIL-SAFE FUNCTION
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
1
(L)
—
CAN-H
Input/
Output
—
—
2
(P)
—
CAN-L
Input/
Output
—
—
10
(L)
Ground
LAN signal
Input/
Output
Ignition switch ON
11
(R)
Ground
Door motor power supply
Output
Ignition switch ON
12 V
15
(O)
Ground
Sunload sensor signal
Input
Ignition switch ON
0 – 4.8 V
Output voltage varies with sun-
load amount
16
(G)
Ground
Intake sensor signal
Input
Ignition switch ON
0 – 4.8 V
Output voltage varies with evapo-
rator fin temperature
17
(R)
Ground
ACC power supply
—
Ignition switch ON
Battery voltage
19
(B)
Ground
Ground
—
Ignition switch ON
0 V
20
(G)
Ground
Ignition power supply
—
Ignition switch ON
Battery voltage
32
(L)
Ground
Blower motor control signal
Output
• Ignition switch ON
• Fan speed: 1st speed
(manual)
34
(P)
Ground
A/C auto amp. connection rec-
ognition signal
Output
Ignition switch ON
5 V
35
(L)
Ground
Ambient sensor signal
Input
Ignition switch ON
0 – 4.8 V
Output voltage varies with ambi-
ent temperature
36
(LG)
Ground
In-vehicle sensor signal
Input
Ignition switch ON
0 – 4.8 V
Output voltage varies with in-ve-
hicle temperature
37
(Y)
Ground
Sensor ground
—
Ignition switch ON
0 V
39
(B)
Ground
Ground
—
Ignition switch ON
0 V
40
(Y)
Ground
Battery power supply
—
Ignition switch OFF
Battery voltage
SJIA1453J
JSIIA0096ZZ
Revision: 2012 October
2013 Murano CrossCabriolet
HAC-26
< ECU DIAGNOSIS INFORMATION >
[AUTOMATIC AIR CONDITIONING]
A/C AUTO AMP.
When a communication error between A/C auto amp. and AV control unit and preset switch continued for
approximately 30 seconds or more, air conditioning is controlled under the following conditions.
DTC Index
INFOID:0000000008460642
*: Perform self-diagnosis under sunshine. When performing indoors, aim a light (more than 60 W) at sunload
sensor, otherwise self-diagnosis indicates even though the sunload sensor is functioning normally.
NOTE:
If all of door motor DTCs (B2632, B2633, B2634, B2635, B2636, B2637, B2638, B2639, B263D, B263E,
B263F, B2654, B2655, B2661, B2662, and B2663) are detected, check “DOOR MOTOR” circuit. Refer to
Set temperature
: Setting before communication error occurs
Air outlet
: Automatic control
Air flow
: Automatic control
Air inlet
: Fresh air intake (FRE)
A/C switch
: ON
DTC
Items
(CONSULT screen terms)
Reference
U1000
CAN COMM CIRCUIT
U1010
CONTROL UNIT (CAN)
B2578
IN-VEHICLE SENSOR
B2579
IN-VEHICLE SENSOR
B257B
AMBIENT SENOR
B257C
AMBIENT SENOR
B2581
INTAKE SENSOR
B2582
INTAKE SENSOR
B2630
*
SUNLOAD SENSOR
B2631
*
SUNLOAD SENSOR
B2632
DR AIR MIX DOOR MOT
B2633
DR AIR MIX DOOR MOT
B2634
PASS AIR MIX DOOR MOT
B2635
PASS AIR MIX DOOR MOT
B2636
DR VENT DOOR FAIL
B2637
DR B/L DOOR FAIL
B2638
DR D/F1 DOOR FAIL
B2639
DR DEF DOOR FAIL
B263D
FRE DOOR FAIL
B263E
20P FRE DOOR FAIL
B263F
REC DOOR FAIL
B2654
D/F2 DOOR FAIL
B2655
B/L2 DOOR FAIL
B2661
UPPER VENT DOOR MOT
B2662
UPPER VENT DOOR MOT
B2663
UPPER VENT DOOR MOT
Revision: 2012 October
2013 Murano CrossCabriolet
ECM, IPDM E/R
HAC-27
< ECU DIAGNOSIS INFORMATION >
[AUTOMATIC AIR CONDITIONING]
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ECM, IPDM E/R
List of ECU Reference
INFOID:0000000008460643
ECU
Reference
ECM
EC-90, "DTC Inspection Priority Chart"
IPDM E/R
Revision: 2012 October
2013 Murano CrossCabriolet
HAC-28
< WIRING DIAGRAM >
[AUTOMATIC AIR CONDITIONING]
AUTOMATIC AIR CONDITIONING SYSTEM
WIRING DIAGRAM
AUTOMATIC AIR CONDITIONING SYSTEM
Wiring Diagram
INFOID:0000000008460644
For connector terminal arrangements, harness layouts, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to
GI-12, "Connector Information"
JRIWC0507GB
Revision: 2012 October
2013 Murano CrossCabriolet
AUTOMATIC AIR CONDITIONING SYSTEM
HAC-29
< WIRING DIAGRAM >
[AUTOMATIC AIR CONDITIONING]
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B
HAC
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JRIWC0508GB
Revision: 2012 October
2013 Murano CrossCabriolet
HAC-30
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONING]
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
INFOID:0000000008460645
OVERALL SEQUENCE
DETAILED FLOW
JMKIA8652GB
Revision: 2012 October
2013 Murano CrossCabriolet
DIAGNOSIS AND REPAIR WORK FLOW
HAC-31
< BASIC INSPECTION >
[AUTOMATIC AIR CONDITIONING]
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1.
GET INFORMATION FOR SYMPTOM
1.
Get detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurs).
2.
Check operation condition of the function that is malfunctioning.
>> GO TO 2.
2.
CHECK DTC
1.
Check DTC.
2.
Perform the following procedure if DTC is detected.
-
Record DTC and freeze frame data (Print them out using CONSULT.)
-
Erase DTC.
-
Study the relationship between the cause detected by DTC and the symptom described by the customer.
3.
Check related service bulletins for information.
Are any symptoms described and any DTC detected?
Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5.
3.
CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 5.
4.
CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 6.
5.
PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC CONFIRMATION PROCEDURE for the detected DTC, and then check that DTC is detected
again. At this time, always connect CONSULT to the vehicle, and check self diagnostic results in real time.
If two or more DTCs are detected, refer to DTC INSPECTION PRIORITY CHART, and determine trouble diag-
nosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
• Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service
Manual. This simplified check procedure is an effective alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.
Is DTC detected?
YES
>> GO TO 7.
NO
>> Check according to
GI-40, "Intermittent Incident"
.
6.
DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS
Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step
4, and determine the trouble diagnosis order based on possible causes and symptom.
Is the symptom described?
YES
>> GO TO 7.
NO
>> Monitor input data from related sensors or check voltage of related module terminals using CON-
SULT.
7.
DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE
Revision: 2012 October
2013 Murano CrossCabriolet
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