Murano Cross Cabriolet Z51 (2012 year). Manual — part 44
HAC-42
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2581, B2582 INTAKE SENSOR
B2581, B2582 INTAKE SENSOR
DTC Logic
INFOID:0000000007563427
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010.
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000007563428
1.
CHECK INTAKE SENSOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect intake sensor connector.
3.
Turn ignition switch ON.
4.
Check voltage between intake sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK INTAKE SENSOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between intake sensor harness connector and A/C auto amp harness connector.
Is the inspection result normal?
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2581
INTAKE SENSOR
The intake sensor recognition temperature is
too high [more than 69
°
C (156
°
F)].
• Harness or connectors
(Intake sensor circuit is open or
shorted)
• Intake sensor
• A/C auto amp.
B2582
The intake sensor recognition temperature is
too low [less than
−
33
°
C (
−
27
°
F)].
+
−
Voltage
(Approx.)
Intake sensor
Connector
Terminal
M42
1
Ground
5 V
Intake sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M42
2
M50
37
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
B2581, B2582 INTAKE SENSOR
HAC-43
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK INTAKE SENSOR
Check intake sensor. Refer to
HAC-43, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Replace intake sensor. Refer to
HAC-82, "Removal and Installation"
4.
CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between intake sensor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between intake sensor harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007563429
1.
CHECK INTAKE SENSOR
1.
Remove intake sensor. Refer to
HAC-82, "Removal and Installation"
.
2.
Check resistance between intake sensor terminals. Refer to applicable table for the normal value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace intake sensor. Refer to
HAC-82, "Removal and Installation"
Intake sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M42
1
M50
16
Existed
Intake sensor
—
Continuity
Connector
Terminal
M42
1
Ground
Not existed
Terminal
Condition
Resistance: k
Ω
Temperature:
°
C (
°
F)
1
2
−
20 (
−
4)
24.81
−
10 (14)
14.15
0 (32)
8.41
10 (50)
5.19
20 (68)
3.30
25 (77)
2.67
30 (86)
2.17
40 (104)
1.46
Revision: 2013 February
2012 Murano CrossCabriolet
HAC-44
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2630, B2631 SUNLOAD SENSOR
B2630, B2631 SUNLOAD SENSOR
DTC Logic
INFOID:0000000007563430
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010.
.
• Sunload sensor may register a malfunction when indoors, at dusk, or at other times when light is insufficient.
When performing the diagnosis indoors, use a lamp (60 W or more) that is pointed at the sunload sensor.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000007563431
1.
CHECK SUNLOAD SENSOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect sunload sensor connector.
3.
Turn ignition switch ON.
4.
Check voltage between sunload sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK SUNLOAD SENSOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between sunload sensor harness connector and A/C auto amp harness connector.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2630
SUNLOAD SENSOR
Detected calorie at sunload sensor 2832 W/m
2
(2436 kcal/m
2
·h) or more.
• Harness or connectors
(Sunload sensor circuit is open or
shorted)
• Sunload sensor
• A/C auto amp.
B2631
Detected calorie at sunload sensor 64.7 W/m
2
(56 kcal/m
2
·h) or less.
+
−
Voltage
(Approx.)
Sunload sensor
Connector
Terminal
M74
1
Ground
5 V
Sunload sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M74
2
M50
37
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
B2630, B2631 SUNLOAD SENSOR
HAC-45
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK SUNLOAD SENSOR
1.
Reconnect sunload sensor connector and A/C auto amp. connector.
2.
Check sunload sensor. Refer to
HAC-45, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Replace sunload sensor. Refer to
HAC-81, "Removal and Installation"
.
4.
CHECK SUNLOAD SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between sunload sensor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK SUNLOAD SENSOR POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between sunload sensor harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007563432
1.
CHECK SUNLOAD SENSOR
1.
Turn ignition switch ON.
2.
Check voltage between A/C auto amp. harness connector and ground. Refer to applicable table for the
normal value.
Sunload sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M74
1
M50
15
Existed
Sunload sensor
—
Continuity
Connector
Terminal
M74
1
Ground
Not existed
+
−
A/C auto amp.
Connector
Terminal
M50
15
Ground
Revision: 2013 February
2012 Murano CrossCabriolet
HAC-46
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2630, B2631 SUNLOAD SENSOR
NOTE:
• When checking indoors, use a lamp of approximately 60 W. Move the lamp towards and away from the
sensor to check.
• The sunload amount produced by direct sunshine in fair weather is equivalent to approximately 0.77
kW/m
2
(662 kcal/m
2
·h).
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace sunload sensor. Refer to
HAC-81, "Removal and Installation"
.
SHA930E
Revision: 2013 February
2012 Murano CrossCabriolet
B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
HAC-47
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
DTC Logic
INFOID:0000000007563433
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
.
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010.
.
• If all of door motors DTC (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
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000007563434
1.
CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between air mix door motor LH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor LH and A/C auto amp. connector.
3.
Check continuity between air mix door motor LH harness connector and ground.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2632
DR AIR MIX DOOR MOT
Air mix door motor (driver side) PBR
position 95% or more
• Harness or connectors
[Air mix door motor (driver side) circuit
is open or shorted]
• Air mix door motor (driver side) system
installation condition
• Air mix door motor (driver side)
• A/C auto amp.
B2633
Air mix door motor (driver side) PBR
position 5% or less
+
−
Voltage
(Approx.)
Air mix door motor LH
Connector
Terminal
M306
1
Ground
12 V
Revision: 2013 February
2012 Murano CrossCabriolet
HAC-48
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) LAN SIGNAL
1.
Connect air mix door motor LH and A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between air mix door motor LH harness connector and ground using oscillo-
scope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK INSTALLATION OF AIR MIX DOOR MOTOR (DRIVER SIDE) SYSTEM
Check air mix door motor (driver side) system is properly installed. Refer to
Is the inspection result normal?
YES
>> Replace air mix door motor (driver side). Refer to
HAC-85, "AIR MIX DOOR MOTOR : Removal
.
NO
>> Repair or replace malfunctioning part.
5.
CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor LH and A/C auto amp. connector.
3.
Check continuity between air mix door motor LH harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Repair harness or connector.
6.
CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor LH and A/C auto amp. connector.
3.
Check continuity between air mix door motor LH harness connector and A/C auto amp. harness connec-
tor.
Air mix door motor LH
—
Continuity
Connector
Terminal
M306
2
Ground
Existed
+
−
Output waveform
Air mix door motor LH
Connector
Terminal
M306
3
Ground
SJIA1453J
Air mix door motor LH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M306
1
M50
11
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
HAC-49
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Repair harness or connector.
Air mix door motor LH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M306
3
M50
10
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
HAC-50
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
DTC Logic
INFOID:0000000007563435
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010.
.
• If all of door motors DTC (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
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000007563436
1.
CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE) POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between air mix door motor RH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE) GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor RH and A/C auto amp. connector.
3.
Check continuity between air mix door motor RH harness connector and ground.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2634
PASS AIR MIX DOOR MOT
Air mix door motor (passenger side)
PBR position 95% or more
• Harness or connectors
[Air mix door motor (passenger side)
circuit is open or shorted]
• Air mix door motor (passenger side)
system installation condition
• Air mix door motor (passenger side)
• A/C auto amp.
B2635
Air mix door motor (passenger side)
PBR position 5% or less
+
−
Voltage
(Approx.)
Air mix door motor RH
Connector
Terminal
M307
1
Ground
12 V
Revision: 2013 February
2012 Murano CrossCabriolet
B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
HAC-51
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE) LAN SIGNAL
1.
Connect air mix door motor RH and A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between air mix door motor RH harness connector and ground using oscillo-
scope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK INSTALLATION OF AIR MIX DOOR MOTOR (PASSENGER SIDE) SYSTEM
Check air mix door motor (passenger side) system is properly installed. Refer to
.
Is the inspection result normal?
YES
>> Replace air mix door motor (passenger side). Refer to
.
NO
>> Repair or replace malfunctioning part.
5.
CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE) POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor RH and A/C auto amp. connector.
3.
Check continuity between air mix door motor RH harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Repair harness or connector.
6.
CHECK AIR MIX DOOR MOTOR (PASSENGER SIDE) LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor RH and A/C auto amp. connector.
3.
Check continuity between air mix door motor RH harness connector and A/C auto amp. harness connec-
tor.
Air mix door motor RH
—
Continuity
Connector
Terminal
M307
2
Ground
Existed
+
−
Output waveform
Air mix door motor RH
Connector
Terminal
M307
3
Ground
SJIA1453J
Air mix door motor RH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M307
1
M50
11
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
HAC-52
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Repair harness or connector.
Air mix door motor RH
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M307
3
M50
10
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
HAC-53
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
DTC Logic
INFOID:0000000007563437
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
.
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010.
.
• If all of door motors DTC (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
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000007563438
1.
CHECK MODE DOOR MOTOR POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK MODE DOOR MOTOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2636
DR VENT DOOR FAIL
When the malfunctioning door position
is detected at VENT position
• Harness or connectors
(Mode door motor circuit is open or
shorted)
• Mode door motor system installation
condition
• Mode door motor
• A/C auto amp.
B2637
DR B/L DOOR FAIL
When the malfunctioning door position
is detected at B/L position
B2638
DR D/F1 DOOR FAIL
When the malfunctioning door position
is detected at FOOT position
B2639
DR DEF DOOR FAIL
When the malfunctioning door position
is detected at DEF position
B2654
D/F2 DOOR FAIL
When the malfunctioning door position
is detected at D/F position
B2655
B/L DOOR FAIL
When the malfunctioning door position
is detected at B/L position
+
−
Voltage
(Approx.)
Mode door motor
Connector
Terminal
M310
1
Ground
12 V
Revision: 2013 February
2012 Murano CrossCabriolet
HAC-54
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
2.
Disconnect mode door motor and A/C auto amp. connector.
3.
Check continuity between mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK MODE DOOR MOTOR LAN SIGNAL
1.
Connect mode door motor and A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between mode door motor harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK INSTALLATION OF MODE DOOR MOTOR SYSTEM
Check mode door motor system is properly installed. Refer to
Is the inspection result normal?
YES
>> Replace mode door motor. Refer to
HAC-86, "MODE DOOR MOTOR : Removal and Installation"
.
NO
>> Repair or replace malfunctioning part.
5.
CHECK MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect mode door motor and A/C auto amp. connector.
3.
Check continuity between mode door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Repair harness or connector.
6.
CHECK MODE DOOR MOTOR LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect mode door motor and A/C auto amp. connector.
3.
Check continuity between mode door motor harness connector and A/C auto amp. harness connector.
Mode door motor
—
Continuity
Connector
Terminal
M310
2
Ground
Existed
+
−
Output waveform
Mode door motor
Connector
Terminal
M310
3
Ground
SJIA1453J
Mode door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M310
1
M50
11
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
HAC-55
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Repair harness or connector.
Mode door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M310
3
M50
10
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
HAC-56
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B263D, B263E, B263F INTAKE DOOR MOTOR
B263D, B263E, B263F INTAKE DOOR MOTOR
DTC Logic
INFOID:0000000007563439
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010.
.
• If all of door motors DTC (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
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000007563440
1.
CHECK INTAKE DOOR MOTOR POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between intake door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK INTAKE DOOR MOTOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect intake door motor and A/C auto amp. connector.
3.
Check continuity between intake door motor harness connector and ground.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B263D
FRE DOOR FAIL
When the malfunctioning intake door
position is detected at FRE position
• Harness or connectors
(Intake door motor circuit is open or
shorted)
• Intake door motor system installation
condition
• Intake door motor
• A/C auto amp.
B263E
20P FRE DOOR FAIL
When the malfunctioning intake door
position is detected at 20% FRE posi-
tion
B263F
REC DOOR FAIL
When the malfunctioning intake door
position is detected at REC position
+
−
Voltage
(Approx.)
Intake door motor
Connector
Terminal
M304
1
Ground
12 V
Revision: 2013 February
2012 Murano CrossCabriolet
B263D, B263E, B263F INTAKE DOOR MOTOR
HAC-57
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK INTAKE DOOR MOTOR LAN SIGNAL
1.
Connect intake door motor and A/C auto amp. connector.
2.
Turn ignition switch ON.
3.
Confirm output waveform between intake door motor harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
CHECK INSTALLATION OF INTAKE DOOR MOTOR SYSTEM
Check intake door motor system is properly installed. Refer to
Is the inspection result normal?
YES
>> Replace intake door motor. Refer to
HAC-87, "INTAKE DOOR MOTOR : Removal and Installa-
.
NO
>> Repair or replace malfunctioning part.
5.
CHECK INTAKE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect intake door motor and A/C auto amp. connector.
3.
Check continuity between intake door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-78, "Removal and Installation"
NO
>> Repair harness or connector.
6.
CHECK INTAKE DOOR MOTOR LAN SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect intake door motor and A/C auto amp. connector.
3.
Check continuity between intake door motor harness connector and A/C auto amp. harness connector.
Intake door motor
—
Continuity
Connector
Terminal
M304
2
Ground
Existed
+
−
Output waveform
Intake door motor
Connector
Terminal
M304
3
Ground
SJIA1453J
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M304
1
M50
11
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
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