Nissan March K13. Manual — part 379

HAC-50

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

SUNLOAD SENSOR

Is the inspection result normal?

YES

>> Replace the A/C auto amp.

NO

>> Repair the harnesses or connectors.

Component Inspection

INFOID:0000000006024034

1.

CHECK SUNLOAD SENSOR

1.

Turn the ignition switch ON.

2.

Check the input voltage from sunload sensor between A/C auto amp. harness connector and the ground.
Refer to the applicable table for the normal value.

NOTE:
• When checking indoors, use a lamp of approximately 60 W. Move the lamp towards and away from the

sensor to check.

• The sunload amount produced by direct sunshine in fair weather is equivalent to approximately 0.77

kW/m

2

(662 kcal/m

2

·h).

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the sunload sensor.

Sunload sensor

—

Continuity

Connector

Terminal

M74

1

Ground

Not existed

(+)

(

−

)

A/C auto amp.

—

Connector

Terminal

M50

18

Ground

JPIIA1659GB

AIR MIX DOOR MOTOR

HAC-51

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

AIR MIX DOOR MOTOR

Diagnosis Procedure

INFOID:0000000006024036

1.

PERFORM SELF-DIAGNOSIS

Perform self-diagnosis function. Refer to

HAC-22, "Diagnosis Description"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR

Check voltage between air mix door motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK SIGNAL FOR AIR MIX DOOR MOTOR

Confirm A/C LAN signal between air mix door motor harness connector and ground using an oscilloscope.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK AIR MIX DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect air mix door motor connector.

3.

Check continuity between air mix door motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace air mix door motor.

NO

>> Repair harness or connector.

5.

CHECK INSTALLATION OF AIR MIX DOOR MOTOR

Check air mix door motor is properly installed. Refer to

XX-XX, "*****"

.

(+)

(

−

)

Voltage

(Approx.)

Air mix door motor

—

Connector

Terminal

M55

1

Ground

12 V

(+)

(

−

)

Voltage

Air mix door motor

—

Connector

Terminal

M55

3

Ground

SJIA1453J

Air mix door motor

—

Continuity

Connector

Terminal

M55

2

Ground

Existed

HAC-52

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

AIR MIX DOOR MOTOR

Is it installed normally?

YES

>> INSPECTION END

NO

>> Repair or replace air mix door motor.

MODE DOOR MOTOR

HAC-53

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

MODE DOOR MOTOR

Diagnosis Procedure

INFOID:0000000006024039

1.

PERFORM SELF-DIAGNOSIS

Perform self-diagnosis function. Refer to

HAC-22, "Diagnosis Description"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY FOR MODE DOOR MOTOR

Check voltage between mode door motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK SIGNAL FOR MODE DOOR MOTOR

Confirm A/C LAN signal between mode door motor harness connector and ground using an oscilloscope.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK MODE DOOR MOTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect mode door motor connector.

3.

Check continuity between mode door motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace mode door motor.

NO

>> Repair harness or connector.

5.

CHECK MODE DOOR CONTROL LINKAGE

Check mode door control linkage is properly installed. Refer to

XX-XX, "*****"

.

(+)

(

−

)

Voltage

(Approx.)

Mode door motor

—

Connector

Terminal

M56

1

Ground

12 V

(+)

(

−

)

Voltage

Mode door motor

—

Connector

Terminal

M56

3

Ground

SJIA1453J

Mode door motor

—

Continuity

Connector

Terminal

M56

2

Ground

Existed