Nissan March K13. Manual - part 378

HAC-46

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

IN-VEHICLE SENSOR

Is the inspection result normal?

YES

>> Replace the A/C auto amp. 

NO

>> Repair the harnesses or connectors.

Component Inspection

INFOID:0000000006024028

1.

CHECK IN-VEHICLE SENSOR

1.

Turn the ignition switch OFF.

2.

Remove the in-vehicle sensor. Refer to 

XX-XX, "*****"

. 

3.

Check the resistance between the in-vehicle sensor terminals. Refer to the applicable table for the normal
value. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the in-vehicle sensor. 

In-vehicle sensor

—

Continuity

Connector

Terminal

M41

1

Ground

Not existed

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

INTAKE SENSOR

HAC-47

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

INTAKE SENSOR

Diagnosis Procedure

INFOID:0000000006024030

1.

CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the intake sensor connector. 

3.

Turn the ignition switch ON.

4.

Check voltage between intake sensor harness connector and the ground. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK INTAKE SENSOR GROUND CIRCUIT CONTINUITY

1.

Turn the ignition switch OFF.

2.

Disconnect the 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 3.

NO

>> Repair the harnesses or connectors.

3.

CHECK INTAKE SENSOR

Check the intake sensor components. Refer to 

HAC-48, "Component Inspection"

. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the intake sensor. 

4.

CHECK INTAKE SENSOR OPEN CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the 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 the harnesses or connectors.

5.

CHECK INTAKE SENSOR SHORT CIRCUIT

Check continuity between intake sensor harness connector and the ground. 

(+)

(

−

)

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

40

Existed

Intake sensor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal 

M42

1

M50

37

Existed

HAC-48

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

INTAKE SENSOR

Is the inspection result normal?

YES

>> Replace the A/C auto amp. 

NO

>> Repair the harnesses or connectors.

Component Inspection

INFOID:0000000006024031

1.

CHECK INTAKE SENSOR

1.

Turn the ignition switch OFF.

2.

Disconnect the intake sensor connector.

3.

Check the resistance between the intake sensor terminals. Refer to the applicable table for the normal
value. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the intake sensor. 

Intake sensor

—

Continuity

Connector

Terminal

M42

1

Ground

Not existed.

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

SUNLOAD SENSOR

HAC-49

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

SUNLOAD SENSOR

Diagnosis Procedure

INFOID:0000000006024033

1.

CHECK SUNLOAD SENSOR POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the sunload sensor connector. 

3.

Turn the ignition switch ON.

4.

Check voltage between sunload sensor harness connector and the ground. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK SUNLOAD SENSOR GROUND CIRCUIT CONTINUITY

1.

Turn the ignition switch OFF.

2.

Disconnect the 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 3.

NO

>> Repair the harnesses or connectors.

3.

CHECK SUNLOAD SENSOR

1.

Connect the sunload sensor connector. 

2.

Connect the A/C auto amp. connector. 

3.

Check the sunload sensor components. Refer to 

HAC-50, "Component Inspection"

. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the sunload sensor. 

4.

CHECK SUNLOAD SENSOR OPEN CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the 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 the harnesses or connectors.

5.

CHECK SUNLOAD SENSOR SHORT CIRCUIT

Check continuity between sunload sensor harness connector and the ground. 

(+)

(

−

)

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

40

Existed

Sunload sensor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M74

1

M50

18

Existed