Nissan Juke (2016 year). Service Repair Manual - part 429

B27A0, B27A1 INTAKE DOOR MOTOR

HAC-69

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

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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-

tion"

.

11.

CHECK INSTALLATION OF INTAKE DOOR MOTOR SYSTEM

Check intake door motor system is properly installed. Refer to 

HAC-100, "Exploded View"

.

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-

tion"

.

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

Revision: November 2015

2016 JUKE

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-

tion"

.

Terminal

Operation direction

+

−

5

6

REC

6

5

FRE

Revision: November 2015

2016 JUKE

B27A2, B27A3, B27A4, B27A5 AIR MIX DOOR MOTOR

HAC-71

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

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B27A2, B27A3, B27A4, B27A5 AIR MIX DOOR MOTOR

DTC Logic

INFOID:0000000012200058

DTC DETECTION LOGIC 

NOTE:

• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to 

HAC-

53, "DTC Logic"

.

• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. 

HAC-54,

"DTC Logic"

.

• 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 

HAC-71, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000012200059

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: November 2015

2016 JUKE

HAC-72

< 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-72, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-93, "Removal and Installation"

.

NO

>> Replace air mix door motor. Refer to 

HAC-102, "AIR MIX DOOR MOTOR : Removal and Installa-

tion"

.

Component Inspection

INFOID:0000000012200060

1.

CHECK AIR MIX DOOR MOTOR

1. Remove air mix door motor. Refer to 

HAC-102, "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-102, "AIR MIX DOOR MOTOR : Removal and Installa-

tion"

.

Air mix door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M55

3

M50

17

Existed

6

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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: November 2015

2016 JUKE

B27A6, B27A7, B27A8, B27A9 MODE DOOR MOTOR

HAC-73

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

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B27A6, B27A7, B27A8, B27A9 MODE DOOR MOTOR

DTC Logic

INFOID:0000000012200061

DTC DETECTION LOGIC 

NOTE:

• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to 

HAC-

53, "DTC Logic"

.

• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. 

HAC-54,

"DTC Logic"

.

• 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 

HAC-73, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000012200062

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: November 2015

2016 JUKE

HAC-74

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

B27A6, B27A7, B27A8, B27A9 MODE DOOR MOTOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK MODE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR SHORT

Check continuity between mode 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 MODE DOOR MOTOR

Check mode door motor. Refer to 

HAC-74, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-93, "Removal and Installation"

.

NO

>> Replace mode door motor. Refer to 

HAC-101, "MODE DOOR MOTOR : Removal and Installa-

tion"

.

Component Inspection

INFOID:0000000012200063

1.

CHECK MODE DOOR MOTOR

1. Remove mode door motor. Refer to 

HAC-101, "MODE DOOR MOTOR : Removal and Installation"

.

2. Check resistance between mode door motor terminals. Refer to applicable table for the normal value. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace mode door motor. Refer to 

HAC-101, "MODE DOOR MOTOR : Removal and Installa-

tion"

.

Mode door motor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M342

4

M50

37

Existed

3

38

2

39

1

40

Mode door motor

—

Continuity

Connector

Terminal

M342

4

Ground

Not existed

3

2

1

Terminal

Resistance (

Ω

)

(Approx.)

5

1

90

2

3

4

Revision: November 2015

2016 JUKE

POWER SUPPLY AND GROUND CIRCUIT

HAC-75

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

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POWER SUPPLY AND GROUND CIRCUIT

A/C AUTO AMP.
A/C AUTO AMP. : Diagnosis Procedure

INFOID:0000000012200064

1.

CHECK SYMPTOM

Check symptom (A or B).

Which symptom is detected?

A

>> GO TO 2.

B

>> GO TO 5.

2.

CHECK FUSE

1. Turn ignition switch OFF.

2. Check 10A fuse (No. 3).

NOTE:

Refer to 

PG-81, "Fuse and Fusible Link Arrangement"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown. 

3.

CHECK A/C AUTO AMP. IGNITION POWER SUPPLY

1. Disconnect A/C auto amp. connector. 

2. Turn ignition switch ON. 

3. Check voltage between A/C auto amp. harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector between A/C auto amp. and fuse.

4.

CHECK A/C AUTO AMP. GROUND CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Check continuity between A/C auto amp. harness connector and ground. 

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-93, "Removal and Installation"

.

NO

>> Repair harness or connector.

5.

CHECK FUSE

Symptom

A

• Air conditioning system does not activate.
• Air conditioning system cannot be controlled.
• Operation status of air conditioning system is not indicated on display.

NOTE:

Fail-safe does not activate.

B

• Memory function does not operate normally.
• The setting is not maintained. (It returns to the initial condition)

+

−

Voltage

A/C auto amp.

Connector

Terminal

M50

11

Ground

Battery voltage

A/C auto amp.

—

Continuity

Connector

Terminal

M50

30

Ground

Existed

Revision: November 2015

2016 JUKE

HAC-76

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

POWER SUPPLY AND GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check 10A fuse [No.13, located in fuse block (J/B)].

NOTE:

Refer to 

PG-80, "Fuse, Connector and Terminal Arrangement"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown. 

6.

CHECK A/C AUTO AMP. BATTERY POWER SUPPLY

1. Disconnect A/C auto amp. connector. 

2. Check voltage between A/C auto amp. harness connector and ground. 

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-93, "Removal and Installation"

.

NO

>> Repair harness or connector between A/C auto amp. and fuse.

+

−

Voltage

A/C auto amp.

Connector

Terminal

M50

12

Ground

Battery voltage

Revision: November 2015

2016 JUKE