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