Nissan Juke F15. Manual - part 860

POWER SUPPLY AND GROUND CIRCUIT

HAC-75

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

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

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

A/C ON SIGNAL

HAC-77

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

C

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A

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HAC

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A/C ON SIGNAL

Component Function Check

INFOID:0000000012200065

1.

CHECK A/C ON SIGNAL

With CONSULT

1. Turn ignition switch ON.

2. Operate blower motor.

3. Select “AIR CONDITIONER” of “BCM” using CONSULT.

4. Select “AIR COND SW” in “DATA MONITOR” mode.

5. Check A/C ON signal when the A/C switch is operated.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to 

HAC-77, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000012200066

1.

CHECK A/C ON SIGNAL

1. Turn ignition switch OFF.

2. Disconnect A/C auto amp. connector.

3. Turn ignition switch ON.

4. Check output waveform between A/C auto amp. harness connector and ground with using oscilloscope.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-93, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK A/C ON SIGNAL CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect BCM connector.

3. Check continuity between A/C auto amp. harness connector and BCM harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

Monitor item

Condition

Status

AIR COND SW

A/C switch

ON (A/C indicator: 
ON)

On

OFF (A/C indicator: 
OFF)

Off

+

−

Output waveform

A/C auto amp.

Connector

Terminal

M50

15

Ground

JPMIA0012GB

A/C auto amp.

BCM

Continuity

Connector

Terminal

Connector

Terminal

M50

15

M68

27

Existed

HAC-78

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

A/C ON SIGNAL

NO

>> Repair harness or connector.

3.

CHECK A/C ON SIGNAL CIRCUIT FOR SHORT

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

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-94, "Removal and Installation"

.

NO

>> Repair harness or connector.

A/C auto amp.

—

Continuity

Connector

Terminal

M50

15

Ground

Not existed