Nissan Murano Z51 (2012 year). Manual — part 22
DEF-2
SYMPTOM DIAGNOSIS . . . . . . . .
REAR WINDOW DEFOGGER DOES NOT
OPERATE . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
REAR WINDOW DEFOGGER AND DOOR
MIRROR DEFOGGERS DO NOT OPERATE ...
Diagnosis Procedure . . . . . . . . . . . ..
REAR WINDOW DEFOGGER DOES NOT
OPERATE BUT BOTH DOOR MIRROR DE-
FOGGERS OPERATE . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
DOOR MIRROR DEFOGGER DOES NOT OP-
ERATE . . . . . . . . . . . . . . . ...
BOTH SIDES . . . . . . . . . . . . . . . .
BOTH SIDES : Diagnosis Procedure . . . . . .
DRIVER SIDE . . . . . . . . . . . . . . ....
DRIVER SIDE : Diagnosis Procedure . . . . ....
PASSENGER SIDE . . . . . . . . . . . . ...
PASSENGER SIDE : Diagnosis Procedure . . ...
Diagnosis Procedure . . . . . . . . . . . ...
REAR WINDOW DEFOGGER INDICATOR
DOES NOT ILLUMINATE . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ...
PRECAUTION . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . . .
FOR USA AND CANADA . . . . . . . . . . .
FOR MEXICO . . . . . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . ..
FILAMENT . . . . . . . . . . . . . . .
Inspection and Repair . . . . . . . . . . . .
Revision: 2013 February
2012 MURANO
DIAGNOSIS AND REPAIR WORK FLOW
DEF-3
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
INFOID:0000000007542370
DETAILED FLOW
1.
OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.
>> GO TO 2.
2.
CHECK DTC
Perform self diagnosis with CONSULT.
Is any DTC detected?
YES
>> Refer to
NO
>> GO TO 3.
3.
REPRODUCE THE MALFUNCTION INFORMATION
Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.
>> GO TO 4.
4.
IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”
Use “Symptom diagnosis” from the symptom inspection result in step 3. Then identify where to start perform-
ing the diagnosis based on possible causes and symptoms.
>> GO TO 5.
5.
IDENTIFY MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”
Perform the diagnosis with “Component diagnosis” of the applicable system.
>> GO TO 6.
6.
REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the specified malfunctioning parts.
>> GO TO 7.
7.
FINAL CHECK
Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 3.
Are all malfunctions corrected?
YES
>> INSPECTION END
NO
>> GO TO 4.
Revision: 2013 February
2012 MURANO
DEF-4
< SYSTEM DESCRIPTION >
REAR WINDOW DEFOGGER SYSTEM
SYSTEM DESCRIPTION
REAR WINDOW DEFOGGER SYSTEM
WITH BOSE SYSTEM
WITH BOSE SYSTEM : System Diagram
INFOID:0000000007542371
WITH BOSE SYSTEM : System Description
INFOID:0000000007542372
Operation Description
• Turn rear window defogger switch ON when the ignition switch is turned ON. Then multifunction switch (rear
window defogger switch) transmits rear window defogger switch signal to AV control unit via AV communica-
tion. AV control unit transmits rear window defogger switch signal to BCM via CAN communication.
• BCM turns rear window defogger relay ON and transmits rear window defogger control signal to IPDM E/R
via CAN communication when rear window defogger switch signal is received.
• Rear window defogger and door mirror defogger (with door mirror defogger) are supplied with power and
operate when rear window defogger relay turns ON.
• IPDM E/R transmits rear window defogger control signal to AV control unit via CAN communication.
• AV control unit transmit rear defogger indicator signal to multifunction switch (rear window defogger switch)
via AV communication. then rear window defogger indicator is illuminated.
Timer function
• BCM turns rear window defogger relay ON for approximately 15 minutes when rear window defogger switch
is turned ON. It makes rear window defogger and door mirror defogger (with door mirror defogger) operate.
• Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns
rear window defogger relay OFF. The same reaction also occurs during timer operation, if the ignition switch
is turned OFF.
INPUT/OUTPUT SIGNAL CHART
*: With door mirror defogger
JMLIA0005GB
Switch
Input signal to BCM
BCM function
Actuator
Rear window defogger switch
Defogger switch signal
Rear window defogger & Door mir-
ror defogger
*
control
Rear window defogger
Door mirror defogger
*
Push button ignition switch
Ignition signal
Revision: 2013 February
2012 MURANO
REAR WINDOW DEFOGGER SYSTEM
DEF-5
< SYSTEM DESCRIPTION >
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WITH BOSE SYSTEM : Component Parts Location
INFOID:0000000007542373
WITH BOSE SYSTEM : Component Description
INFOID:0000000007542374
1.
BCM M118, M119, M122, M123
2.
IPDM E/R E6, E11
3.
Rear window defogger switch
(built-in multifunction switch M125)
4.
Rear window defogger connector
D184
5.
AV control unit
With NAVI M145, M146
Without NAVI M129, M131
A.
Dash side lower (passenger side)
B.
Engine room dash panel (LH)
C.
Behind rear pillar finisher (LH)
D.
Behind cluster lid C
JMLIA0119ZZ
BCM
• Operates the rear window defogger with the operation of rear window defogger switch.
• Performs the timer control of rear window defogger.
Rear window defogger relay
• Operates the rear window defogger and the door mirror defogger with the control signal from
BCM.
IPDM E/R
• Transmit rear window defogger control signal to AV control unit via CAN communication.
Multifunction switch
(Rear window defogger
switch)
• The rear window defogger switch is installed.
• Turns the indicator lamp ON when detecting the operation of rear window defogger.
AV control unit
• Displays the rear window defogger ON to the display when detecting the operation of rear win-
dow defogger.
Rear window defogger
• Heats the heating wire with the power supply from the rear window defogger relay to prevent
the rear window from fogging up.
Door mirror defogger
*
• Heats the heating wire with the power supply from the rear window defogger relay to prevent
the door mirror from fogging up.
Revision: 2013 February
2012 MURANO
DEF-6
< SYSTEM DESCRIPTION >
REAR WINDOW DEFOGGER SYSTEM
*:
With mirror defogger
WITHOUT BOSE SYSTEM
WITHOUT BOSE SYSTEM : System Diagram
INFOID:0000000007542375
WITHOUT BOSE SYSTEM : System Description
INFOID:0000000007542376
Operation Description
• Turn rear window defogger switch ON when the ignition switch is turned ON. Then A/C control unit (rear win-
dow defogger switch) transmits rear window defogger switch signal to A/C auto amp.. transmits rear window
defogger switch signal to BCM.
• BCM turns rear window defogger relay ON and transmits rear window defogger control signal to IPDM E/R
via CAN communication when rear window defogger switch signal is received.
• Rear window defogger and door mirror defogger (with door mirror defogger) are supplied with power and
operate when rear window defogger relay turns ON.
• Rear window defogger relay transmits rear window defogger control signal to A/C auto amp. when rear win-
dow defogger operates.
• A/C auto amp. transmit rear window defogger indicator signal to A/C control unit (rear window defogger
switch). Then rear window defogger indicator is illuminated.
Timer function
• BCM turns rear window defogger relay ON for approximately 15 minutes when rear window defogger switch
is turned ON. It makes rear window defogger and door mirror defogger (with door mirror defogger) operate.
• Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns
rear window defogger relay OFF. The same reaction also occurs during timer operation, if the ignition switch
is turned OFF.
INPUT/OUTPUT SIGNAL CHART
*: With door mirror defogger
JMLIA0127GB
Switch
Input signal to BCM
BCM function
Actuator
Rear window defogger switch
Defogger switch signal
Rear window defogger & Door mir-
ror defogger
*
control
Rear window defogger
Door mirror defogger
*
Push button ignition switch
Ignition signal
Revision: 2013 February
2012 MURANO
REAR WINDOW DEFOGGER SYSTEM
DEF-7
< SYSTEM DESCRIPTION >
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WITHOUT BOSE SYSTEM : Component Parts Location
INFOID:0000000007542377
WITHOUT BOSE SYSTEM : Component Description
INFOID:0000000007542378
*:
With door mirror defogger
1.
BCM M118, M119, M122, M123
2.
IPDM E/R E6, E11
3.
Rear window defogger switch
(built-in A/C control unit M95)
4.
Rear window defogger connector
D184
5.
A/C auto amp. M50
A.
Dash side lower (passenger side)
B.
Engine room dash panel (LH)
C.
Behind rear pillar finisher (LH)
D.
Behind cluster lid C
JMLIA0128ZZ
BCM
• Operates the rear window defogger with the operation of rear window defogger switch.
• Performs the timer control of rear window defogger.
Rear window defogger relay
• Operates the rear window defogger and the door mirror defogger with the control signal from
BCM.
IPDM E/R
• Transmit rear window defogger control signal to ECM via CAN communication.
A/C control unit
(Rear window defogger
switch)
• The rear window defogger switch is installed.
• Turns the indicator lamp ON when detecting the operation of rear window defogger.
A/C auto amp.
• Displays the rear window defogger ON to the display when detecting the operation of rear win-
dow defogger.
Rear window defogger
• Heats the heating wire with the power supply from the rear window defogger relay to prevent
the rear window from fogging up.
Door mirror defogger
*
• Heats the heating wire with the power supply from the rear window defogger relay to prevent
the door mirror from fogging up.
Revision: 2013 February
2012 MURANO
DEF-8
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000007805014
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×
: Applicable item
NOTE:
• *1: For models with rain sensor this mode is displayed, but is not used.
• *2: This item is displayed, but is not used.
FREEZE FRAME DATA (FFD)
Diagnosis mode
Function Description
Work Support
Changes the setting for each system function.
Self Diagnostic Result
Displays the diagnosis results judged by BCM.
CAN Diag Support Monitor
Monitors the reception status of CAN communication viewed from BCM.
Data Monitor
The BCM input/output signals are displayed.
Active Test
The signals used to activate each device are forcibly supplied from BCM.
Ecu Identification
The BCM part number is displayed.
Configuration
• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.
System
Sub system selection item
Diagnosis mode
Work Support
Data Monitor
Active Test
Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
*
1
×
×
Turn signal and hazard warning lamps
FLASHER
×
×
×
—
AIR CONDITONER*
2
• Intelligent Key system
• Engine start system
INTELLIGENT KEY
×
×
×
Combination switch
COMB SW
×
Body control system
BCM
×
NVIS - NATS
IMMU
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Back door opener system
TRUNK
×
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS
TPMS (AIR PRESSURE MONITOR)
×
×
×
Revision: 2013 February
2012 MURANO
DIAGNOSIS SYSTEM (BCM)
DEF-9
< SYSTEM DESCRIPTION >
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The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT.
NOTE:
*: Power supply position shifts to “LOCK” from “OFF”, when ignition switch is in the OFF position, selector lever is in the P position, and
any of the following conditions are met.
• Closing door
• Opening door
• Door is locked using door request switch
• Door is locked using Intelligent Key
The power supply position shifts to “ACC” when the push-button ignition switch (push switch) is pushed at “LOCK”.
REAR WINDOW DEFOGGER
REAR WINDOW DEFOGGER : CONSULT Function (BCM - REAR DEFOGGER)
INFOID:0000000007542380
Data monitor
CONSULT screen item
Indication/Unit
Description
Vehicle Speed
km/h
Vehicle speed of the moment a particular DTC is detected
Odo/Trip Meter
km
Total mileage (Odometer value) of the moment a particular DTC is detected
Vehicle Condition
SLEEP>LOCK
Power position status of
the moment a particular
DTC is detected
While turning BCM status from low power consumption mode to
normal mode (Power supply position is “LOCK”*)
SLEEP>OFF
While turning BCM status from low power consumption mode to
normal mode (Power supply position is “OFF”.)
LOCK>ACC
While turning power supply position from “LOCK” to “ACC”
ACC>ON
While turning power supply position from “ACC” to “IGN”
RUN>ACC
While turning power supply position from “RUN” to “ACC” (Vehicle
is stopping and selector lever is except P position.)
CRANK>RUN
While turning power supply position from “CRANKING” to “RUN”
(From cranking up the engine to run it)
RUN>URGENT
While turning power supply position from “RUN“ to “ACC” (Emer-
gency stop operation)
ACC>OFF
While turning power supply position from “ACC” to “OFF”
OFF>LOCK
While turning power supply position from “OFF” to “LOCK”*
OFF>ACC
While turning power supply position from “OFF” to “ACC”
ON>CRANK
While turning power supply position from “IGN” to “CRANKING”
OFF>SLEEP
While turning BCM status from normal mode (Power supply posi-
tion is “OFF”.) to low power consumption mode
LOCK>SLEEP
While turning BCM status from normal mode (Power supply posi-
tion is “LOCK”*) to low power consumption mode
LOCK
Power supply position is “LOCK”*
OFF
Power supply position is “OFF” (Ignition switch OFF)
ACC
Power supply position is “ACC” (Ignition switch ACC)
ON
Power supply position is “IGN” (Ignition switch ON with engine
stopped)
ENGINE RUN
Power supply position is “RUN” (Ignition switch ON with engine
running)
CRANKING
Power supply position is “CRANKING” (At engine cranking)
IGN Counter
0 - 39
The number of times that ignition switch is turned ON after DTC is detected
• The number is 0 when a malfunction is detected now.
• The number increases like 1
→
2
→
3...38
→
39 after returning to the normal condition
whenever ignition switch OFF
→
ON.
• The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
Revision: 2013 February
2012 MURANO
DEF-10
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
ACTIVE TEST
Monitor Item
Description
REAR DEF SW
This is displayed even when it is not equipped.
PUSH SW
Indicates [ON/OFF] condition of push switch.
Test Item
Description
REAR DEFOGGER
Rear window defogger operates when “ON” on CONSULT screen is touched.
Revision: 2013 February
2012 MURANO
POWER SUPPLY AND GROUND CIRCUIT
DEF-11
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000007542381
1.
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connectors.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair or replace harness or connector.
Terminal No.
Signal name
Fuse and fusible link No.
1
Battery power supply
L
11
10
Terminals
Voltage
(Approx.)
(+)
(
−
)
BCM
Ground
Connector
Terminal
M118
1
Battery voltage
M119
11
BCM
Ground
Continuity
Connector
Terminal
M119
13
Existed
Revision: 2013 February
2012 MURANO
DEF-12
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH
REAR WINDOW DEFOGGER SWITCH
Description
INFOID:0000000007542382
• The rear window defogger is operated by turning the rear window defogger switch ON.
• The indicator lamp in the rear window defogger illuminates when the rear window defogger is operating.
Component Function Check
INFOID:0000000007542383
1.
CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION
Check that the indicator lamp of rear window defogger illuminates when rear window defogger switch ON.
Is the inspection result normal?
YES
>> Rear window defogger switch function is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000007542384
WITH BOSE AUDIO SYSTEM
1.
CHECK PRESET SWITCH (REAR WINDOW DEFOGGER SWITCH)
Does preset switch operate normally?
• Without navigation system. Refer to
• With navigation system. Refer to
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace preset switch (rear window defogger switch). Refer to
AV-255, "Removal and Installation"
.
(without navigation system) or
AV-390, "Removal and Installation"
(with navigation system).
WITHOUT BOSE AUDIO SYSTEM
1.
CHECK A/C CONTROL (REAR WINDOW DEFOGGER SWITCH)
Check A/C control. Refer to
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace A/C control. Refer to
VTL-21, "Removal and Installation"
Revision: 2013 February
2012 MURANO
REAR WINDOW DEFOGGER RELAY
DEF-13
< DTC/CIRCUIT DIAGNOSIS >
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REAR WINDOW DEFOGGER RELAY
Description
INFOID:0000000007542385
Power is supplied to the rear window defogger with BCM control.
Component Function Check
INFOID:0000000007542386
1.
CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
1.
Perform Active Test (“REAR DEFOGGER”) with CONSULT.
2.
Touch “ON”.
3.
Check that the rear window heating wire is getting warmer.
Is the inspection result normal?
YES
>> Rear window defogger relay power supply circuit is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000007542387
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 10A fuse (No.3, located in fuse block (J/B).
-
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK REAR WINDOW DEFOGGER RELAY CIRCUIT
1.
Turn ignition switch ON.
2.
Check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 3.
3.
CHECK FUSE BLOCK (J/B)
Check voltage between fuse block (J/B) connector and ground.
Is the inspection result normal?
YES
>> Repair or replace harness or connector between BCM and fuse block (J/B).
NO
>> GO TO 4.
4.
CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay.
Refer to
DEF-14, "Component Inspection"
Is the inspection result normal?
YES
>> Replace fuse block (J/B).
NO
>> Replace rear window defogger relay.
(+)
(-)
Condition of rear window defog-
ger switch
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M123
151
Ground
ON 0
OFF
Battery voltage
Fuse block (J/B)
Ground
Voltage (V)
(Approx.)
Connector
Terminal
M2
4B
Battery voltage
Revision: 2013 February
2012 MURANO
DEF-14
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER RELAY
5.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
GI-44, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000007542388
1.
CHECK REAR WINDOW DEFOGGER RELAY
1.
Turn ignition switch OFF.
2.
Disconnect rear window defogger relay.
3.
Check rear window defogger relay.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace rear window defogger relay.
Terminal
Condition
Continuity
Rear window
defogger relay
3
5
12 V direct current supply between termi-
nals 1 and 2.
Existed
No current supply
Not existed
SEF497Y
Revision: 2013 February
2012 MURANO
REAR WINDOW DEFOGGER
DEF-15
< DTC/CIRCUIT DIAGNOSIS >
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REAR WINDOW DEFOGGER
Description
INFOID:0000000007542389
Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window
from fogging up.
Component Function Check
INFOID:0000000007542390
1.
CHECK REAR WINDOW DEFOGGER
1.
Perform Active Test (“REAR DEFOGGER”) with CONSULT.
2.
Touch “ON”.
3.
Check that the rear window heating wire is getting warmer.
Is the inspection result normal?
YES
>> Rear window defogger is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000007542391
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check the following.
-
20A fuse (No.14, located in fuse block (J/B)
-
20A fuse (No.15, located in fuse block (J/B)
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Disconnect rear window defogger harness connector.
2.
Turn ignition switch ON.
3.
Check voltage between rear window defogger connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between rear window defogger harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace harness or connector between rear window defogger and ground.
4.
CHECK REAR WINDOW DEFOGGER CIRCUIT 1
(+)
(-)
Condition of rear window
defogger switch
Voltage (V)
(Approx.)
Rear window defogger
Connector
Terminal
D184
1
Ground
ON
Battery voltage
OFF
0
Rear window defogger
Ground
Continuity
Connector
Terminal
D185
2
Existed
Revision: 2013 February
2012 MURANO
DEF-16
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER
1.
Turn ignition switch OFF.
2.
Disconnect condenser connector.
3.
Check continuity between condenser harness connector and rear window defogger harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness or connector.
5.
CHECK REAR WINDOW DEFOGGER CIRCUIT 2
1.
Check continuity between fuse block (J/B) harness connector and condenser harness connector.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness or connector between fuse block (J/B) and condenser.
6.
CHECK FUSE BLOCK (J/B)
1.
Turn ignition switch ON.
2.
Check voltage between fuse block (J/B) connector (fuse block side) and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 8.
7.
CHECK CONDENSER
Check condenser. Refer to
DEF-17, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace condenser.
8.
CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay. Refer to
DEF-14, "Component Inspection"
Is the inspection result normal?
YES
>> Replace fuse block (J/B).
NO
>> Replace rear window defogger relay.
9.
CHECK FILAMENT
Check the filament for damage or blown.
Refer to
DEF-64, "Inspection and Repair"
Is the inspection result normal?
Condenser
Rear window defogger
Continuity
Connector
Terminal
Connector
Terminal
B75
2
B184
1
Existed
Fuse block (J/B)
Condenser
Continuity
Connector
Terminal
Connector
Terminal
B6
10G
B74
1
Existed
11G
(+)
(-)
Condition of rear window
defogger switch
Voltage (V)
(Approx.)
Fuse block (J/B)
Connector
Terminal
B6
10G
Ground
ON
Battery voltage
OFF
0
11G
ON
Battery voltage
OFF
0
Revision: 2013 February
2012 MURANO
REAR WINDOW DEFOGGER
DEF-17
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
YES
>> GO TO 10.
NO
>> Repair filament.
10.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
GI-44, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000007542392
1.
CHECK CONDENSER
1.
Check continuity between condenser connector and ground part of condenser.
2.
Check condenser.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair condenser.
Condensor
Ground part of
condenser
Continuity
Connector
Terminal
B74
1
Not existed
B75
2
Condensor
Continuity
Connector
Terminal
Connector
Terminal
B74
1
B75
2
Existed
Revision: 2013 February
2012 MURANO
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