Nissan Juke F15. Manual — part 858
B27A0, B27A1 INTAKE DOOR MOTOR
HAC-67
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
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B27A0, B27A1 INTAKE DOOR MOTOR
DTC Logic
INFOID:0000000012200054
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:0000000012200055
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
HAC-68
< 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-69, "Component Inspection (PBR)"
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-93, "Removal and Installation"
NO
>> Replace intake door motor. Refer to
HAC-101, "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-93, "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
B27A0, B27A1 INTAKE DOOR MOTOR
HAC-69
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
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HAC
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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-69, "Component Inspection (Motor)"
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Replace intake door motor. Refer to
HAC-101, "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-93, "Removal and Installation"
NO
>> Repair or replace malfunctioning parts.
Component Inspection (PBR)
INFOID:0000000012200056
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-101, "INTAKE DOOR MOTOR : Removal and Installa-
.
Component Inspection (Motor)
INFOID:0000000012200057
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
HAC-70
< 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-101, "INTAKE DOOR MOTOR : Removal and Installa-
.
Terminal
Operation direction
+
−
5
6
REC
6
5
FRE
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