Nissan Juke (2012 year). Service Repair Manual — part 142
HAC-50
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B257B, B257C AMBIENT SENSOR
B257B, B257C AMBIENT SENSOR
DTC Logic
INFOID:0000000007577605
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:0000000007577606
1.
CHECK AMBIENT SENSOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect ambient sensor connector.
3.
Turn ignition switch ON.
4.
Check voltage between ambient sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK AMBIENT SENSOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between ambient 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
B257B
AMBIENT SENSOR
The ambient sensor recognition temperature is
too high [more than 100
°
C (212
°
F)].
• Ambient sensor
• A/C auto amp.
• Harness or connectors
(The sensor circuit is open or short-
ed.)
B257C
The ambient sensor recognition temperature is
too low [less than
−
42
°
C (
−
44
°
F)].
+
−
Voltage
(Approx.)
Ambient sensor
Connector
Terminal
E53
1
Ground
5 V
Ambient sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
E53
2
M50
10
Existed
Revision: 2011 October
2012 JUKE
B257B, B257C AMBIENT SENSOR
HAC-51
< 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 AMBIENT SENSOR
Check ambient sensor. Refer to
HAC-51, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-85, "Removal and Installation"
NO
>> Replace ambient sensor. Refer to
HAC-86, "Removal and Installation"
4.
CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between ambient 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 AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between ambient sensor harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-85, "Removal and Installation"
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007577607
1.
CHECK AMBIENT SENSOR
1.
Remove ambient sensor. Refer to
HAC-86, "Removal and Installation"
2.
Check resistance between ambient sensor terminals. Refer to applicable table for the normal value.
Ambient sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
E53
1
M50
4
Existed
Ambient sensor
—
Continuity
Connector
Terminal
E53
1
Ground
Not existed
Revision: 2011 October
2012 JUKE
HAC-52
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B257B, B257C AMBIENT SENSOR
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace ambient sensor. Refer to
HAC-86, "Removal and Installation"
.
Terminal
Condition
Resistance: k
Ω
Temperature:
°
C (
°
F)
1
2
−
15 (5)
12.73
−
10 (14)
9.92
−
5 (23)
7.80
0 (32)
6.19
5 (41)
4.95
10 (50)
3.99
15 (59)
3.24
20 (68)
2.65
25 (77)
2.19
30 (86)
1.81
35 (95)
1.51
40 (104)
1.27
45 (113)
1.07
Revision: 2011 October
2012 JUKE
B2581, B2582 INTAKE SENSOR
HAC-53
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B2581, B2582 INTAKE SENSOR
DTC Logic
INFOID:0000000007577608
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:0000000007577609
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 100
°
C (212
°
F)].
• Intake sensor
• A/C auto amp.
• Harness or connectors
(The sensor circuit is open or short-
ed.)
B2582
The intake sensor recognition temperature is
too low [less than
−
42
°
C (
−
44
°
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
10
Existed
Revision: 2011 October
2012 JUKE
HAC-54
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2581, B2582 INTAKE SENSOR
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK INTAKE SENSOR
Check intake sensor. Refer to
HAC-54, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-85, "Removal and Installation"
NO
>> Replace intake sensor. Refer to
HAC-89, "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-85, "Removal and Installation"
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007577610
1.
CHECK INTAKE SENSOR
1.
Remove intake sensor. Refer to
HAC-89, "Removal and Installation"
2.
Check resistance between intake sensor terminals. Refer to applicable table for the normal value.
Intake sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M42
1
M50
3
Existed
Intake sensor
—
Continuity
Connector
Terminal
M42
1
Ground
Not existed
Revision: 2011 October
2012 JUKE
B2581, B2582 INTAKE SENSOR
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
>> INSPECTION END
NO
>> Replace intake sensor. Refer to
HAC-89, "Removal and Installation"
Terminal
Condition
Resistance: k
Ω
Temperature:
°
C (
°
F)
1
2
−
15 (5)
12.34
−
10 (14)
9.62
−
5 (23)
7.56
0 (32)
6.00
5 (41)
4.80
10 (50)
3.87
15 (59)
3.15
20 (68)
2.57
25 (77)
2.12
30 (86)
1.76
35 (95)
1.47
40 (104)
1.23
45 (113)
1.04
Revision: 2011 October
2012 JUKE
HAC-56
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2630, B2631 SUNLOAD SENSOR
B2630, B2631 SUNLOAD SENSOR
DTC Logic
INFOID:0000000007577611
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:0000000007577612
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 1677 W/m
2
(1442 kcal/m
2
·h) or more.
• Sunload sensor
• A/C auto amp.
• Harness or connectors
(The sensor circuit is open or short-
ed.)
B2631
Detected calorie at sunload sensor 33 W/m
2
(28
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
10
Existed
Revision: 2011 October
2012 JUKE
B2630, B2631 SUNLOAD SENSOR
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 SUNLOAD SENSOR
1.
Disconnect A/C auto amp. connector.
2.
Check sunload sensor. Refer to
HAC-57, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-85, "Removal and Installation"
NO
>> Replace sunload sensor. Refer to
HAC-88, "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-85, "Removal and Installation"
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000007577613
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
5
Existed
Sunload sensor
—
Continuity
Connector
Terminal
M74
1
Ground
Not existed
A/C auto amp.
Connector
+
−
Terminal
Terminal
M50
5
30
Revision: 2011 October
2012 JUKE
HAC-58
< 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-88, "Removal and Installation"
.
JPIIA1659GB
Revision: 2011 October
2012 JUKE
B27A0, B27A1 INTAKE DOOR MOTOR
HAC-59
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B27A0, B27A1 INTAKE DOOR MOTOR
DTC Logic
INFOID:0000000007577614
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.
.
*: A/C auto amp. operates intake door motor according to target value of PBR opening angle at 40% when per-
forming self-diagnosis.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Start engine.
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:0000000007577615
1.
CHECK INTAKE DOOR MOTOR OPERATION
1.
Turn ignition switch ON.
2.
Operate intake switch and check by operation sound that intake door motor operates.
Does the intake door motor operate?
YES
>> GO TO 2.
NO
>> GO TO 8.
2.
CHECK INTAKE DOOR MOTOR PBR POWER SUPPLY
1.
Disconnect intake door motor connector.
2.
Turn ignition switch ON.
3.
Check voltage between intake door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 7.
3.
CHECK INTAKE DOOR MOTOR PBR GROUND CIRCUIT FOR OPEN
DTC
Items
(CONSULT screen terms)
DTC detection condition
*
Possible cause
B27A0
INTAKE DOOR MOTOR
PBR opening angle of intake door motor is 50%
or more. (PBR feedback signal voltage of intake
door motor is 2.5 V or more)
• Intake door motor
• Intake door motor system installa-
tion condition
• A/C auto amp.
• Harness or connectors
(The motor circuit is open or short-
ed.)
B27A1
PBR opening angle of intake door motor is 30%
or less. (PBR feedback signal voltage of intake
door motor is 1.5 V or less)
+
−
Voltage
(Approx.)
Intake door motor
Connector
Terminal
M54
1
Ground
5 V
Revision: 2011 October
2012 JUKE
HAC-60
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B27A0, B27A1 INTAKE DOOR MOTOR
1.
Turn ignition switch OFF.
2.
Disconnect 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
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK INTAKE DOOR MOTOR PBR FEEDBACK SIGNAL CIRCUIT FOR OPEN
Check continuity between intake door motor 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 DOOR MOTOR PBR FEEDBACK SIGNAL CIRCUIT FOR SHORT
Check continuity between intake door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK INTAKE DOOR MOTOR PBR
Check intake door motor PBR. Refer to
HAC-61, "Component Inspection (PBR)"
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-85, "Removal and Installation"
NO
>> Replace intake door motor. Refer to
HAC-93, "INTAKE DOOR MOTOR : Removal and Installa-
.
7.
CHECK INTAKE DOOR MOTOR PBR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect 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-85, "Removal and Installation"
NO
>> Repair harness or connector.
8.
CHECK INTAKE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect intake door motor connector, and A/C auto amp. connector.
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M54
3
M50
10
Existed
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M54
2
M50
22
Existed
Intake door motor
—
Continuity
Connector
Terminal
M54
2
Ground
Not existed
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M54
1
M50
8
Existed
Revision: 2011 October
2012 JUKE
B27A0, B27A1 INTAKE DOOR MOTOR
HAC-61
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
3.
Check continuity between intake door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair harness or connector.
9.
CHECK INTAKE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR SHORT
Check continuity between intake door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair harness or connector.
10.
CHECK INTAKE DOOR MOTOR
1.
Turn ignition switch OFF.
2.
Check intake door motor. Refer to
HAC-61, "Component Inspection (Motor)"
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Replace intake door motor. Refer to
HAC-93, "INTAKE DOOR MOTOR : Removal and Installa-
.
11.
CHECK INSTALLATION OF INTAKE DOOR MOTOR SYSTEM
Check intake door motor system is properly installed. Refer to
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-85, "Removal and Installation"
NO
>> Repair or replace malfunctioning parts.
Component Inspection (PBR)
INFOID:0000000007577616
1.
CHECK INTAKE DOOR MOTOR PBR
Check resistance between intake door motor terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace intake door motor. Refer to
HAC-93, "INTAKE DOOR MOTOR : Removal and Installa-
.
Component Inspection (Motor)
INFOID:0000000007577617
1.
CHECK INTAKE DOOR MOTOR
Supply intake door motor terminals with battery voltage and check by visually and operation sound that intake
door motor operates.
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M54
5
M50
35
Existed
6
36
Intake door motor
—
Continuity
Connector
Terminal
M54
5
Ground
Not existed
6
Terminal
Resistance (
Ω
)
1
2
Except 0 or
∞
3
Revision: 2011 October
2012 JUKE
HAC-62
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B27A0, B27A1 INTAKE DOOR MOTOR
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace intake door motor. Refer to
HAC-93, "INTAKE DOOR MOTOR : Removal and Installa-
.
Terminal
Operation direction
+
−
5
6
REC
6
5
FRE
Revision: 2011 October
2012 JUKE
B27A2, B27A3, B27A4, B27A5 AIR MIX DOOR MOTOR
HAC-63
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B27A2, B27A3, B27A4, B27A5 AIR MIX DOOR MOTOR
DTC Logic
INFOID:0000000007577618
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 air mix door motors DTC (B27A2 – B27A5) are detected, there is probably a disconnected connector or an
open circuit in air mix door motor drive power supply harness.
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:0000000007577619
1.
CHECK AIR MIX DOOR MOTOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect air mix door motor connector.
3.
Turn ignition switch ON.
4.
Check voltage between air mix door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector between air mix door motor and fuse.
2.
CHECK AIR MIX DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between air mix door motor harness connector and A/C auto amp. harness connector.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B27A2
DR AIR MIX DOOR MOT
Short or open circuit of air mix door motor drive
signal terminal 1.
• Air mix door motor
• A/C auto amp.
• Harness or connectors
(The motor circuit is open or short-
ed.)
B27A3
Short or open circuit of air mix door motor drive
signal terminal 2.
B27A4
Short or open circuit of air mix door motor drive
signal terminal 3.
B27A5
Short or open circuit of air mix door motor drive
signal terminal 4.
+
−
Voltage
Air mix door motor
Connector
Terminal
M55
2
Ground
Battery voltage
Revision: 2011 October
2012 JUKE
HAC-64
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B27A2, B27A3, B27A4, B27A5 AIR MIX DOOR MOTOR
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK AIR MIX DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR SHORT
Check continuity between air mix door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK AIR MIX DOOR MOTOR
Check air mix door motor. Refer to
HAC-64, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-85, "Removal and Installation"
NO
>> Replace air mix door motor. Refer to
HAC-94, "AIR MIX DOOR MOTOR : Removal and Installa-
.
Component Inspection
INFOID:0000000007577620
1.
CHECK AIR MIX DOOR MOTOR
1.
Remove air mix door motor. Refer to
HAC-94, "AIR MIX DOOR MOTOR : Removal and Installation"
.
2.
Check resistance between air mix door motor terminals. Refer to applicable table for the normal value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace air mix door motor. Refer to
HAC-94, "AIR MIX DOOR MOTOR : Removal and Installa-
.
Air mix door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M55
3
M50
17
Existed
6
18
1
19
4
20
Air mix door motor
—
Continuity
Connector
Terminal
M55
3
Ground
Not existed
6
1
4
Terminal
Resistance (
Ω
)
(Approx.)
2
1
90
3
4
6
Revision: 2011 October
2012 JUKE
B27A6, B27A7, B27A8, B27A9 MODE DOOR MOTOR
HAC-65
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B27A6, B27A7, B27A8, B27A9 MODE DOOR MOTOR
DTC Logic
INFOID:0000000007577621
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 mode door motors DTC (B27A6 – B27A9) are detected, there is probably a disconnected connector or an
open circuit in mode door motor drive power supply harness.
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:0000000007577622
1.
CHECK MODE DOOR MOTOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect mode door motor connector.
3.
Turn ignition switch ON.
4.
Check voltage between mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector between mode door motor and fuse.
2.
CHECK MODE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between mode door motor harness connector and A/C auto amp. harness connector.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B27A6
MODE DOOR MOTOR
Short or open circuit of mode door motor drive
signal terminal 1.
• Mode door motor
• A/C auto amp.
• Harness or connectors
(The motor circuit is open or short-
ed.)
B27A7
Short or open circuit of mode door motor drive
signal terminal 2.
B27A8
Short or open circuit of mode door motor drive
signal terminal 3.
B27A9
Short or open circuit of mode door motor drive
signal terminal 4.
+
−
Voltage
Mode door motor
Connector
Terminal
M342
5
Ground
Battery voltage
Revision: 2011 October
2012 JUKE
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