Nissan March K13. Manual - part 392

HAC-102

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

BLOWER MOTOR

YES

>> GO TO 6.

NO

>> Repair the harness or connector.

6.

CHECK VOLTAGE BETWEEN BLOWER FAN RESISTOR AND GROUND

1.

Disconnect the blower fan resistor connector.

2.

Turn the ignition switch ON.

3.

Check voltage between blower fan resistor harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair the harness or connector between blower fan resistor and blower motor.

7.

CHECK BLOWER FAN RESISTOR

1.

Turn the ignition switch OFF.

2.

Perform the component inspection of blower fan resistor. Refer to 

HAC-102, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace the blower fan resistor.

8.

CHECK CIRCUIT CONTINUITY BETWEEN A/C CONTROL AND BLOWER FAN RESISTOR

Check continuity between A/C control harness connector and blower fan resistor.

Is the inspection result normal?

YES

>> Replace A/C control.

NO

>> Repair the harness or connector.

Component Inspection

INFOID:0000000006024121

BLOWER MOTOR

1.

CHECK BLOWER MOTOR

1.

Remove the blower motor. Refer to 

XX-XX, "*****"

. 

2.

Check that there is not any mixing foreign object in the blower motor. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the blower motor.

2.

CHECK BLOWER MOTOR

Check that there is not breakage or damage in the blower motor. 
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the blower motor.

3.

CHECK BLOWER MOTOR

Check that the blower motor turns smoothly. 
Is the inspection result normal?

(+)

(

−

)

Voltage

(Approx.)

Blower fan resistor

—

Connector

Terminal

M104

1

Ground

12 V

A/C control

Blower fan resistor

Continuity

Connector

Terminal

Connector

Terminal

M53

2

M104

2

Existed

3

3

4

4

BLOWER MOTOR

HAC-103

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

YES

>> INSPECTION END

NO

>> Replace the blower motor.

BLOWER RELAY

1.

CHECK BLOWER RELAY

1.

Remove the blower relay. Refer to 

XX-XX, "*****"

. 

2.

Check the continuity between the blower relay terminal 3 and 5
when the voltage is supplied between terminal 1 and 2. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the blower relay.

BLOWER FAN RESISTOR

1.

CHECK BLOWER MOTOR

1.

Turn the ignition switch OFF. 

2.

Disconnect the blower fan resistor connector.

3.

Check the resistance between blower fan resistor terminals. Refer to the applicable table for the normal
value.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the blower fan resistor.

Blower relay

Voltage

Continuity

Terminal

3

5

ON

Existed

OFF

Not existed

JSIIA1551ZZ

Blower fan resistor

Resistance: 

Ω

(Approx.)

Terminal

1

2

0.43

3

1.03

4

3

HAC-104

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

MAGNET CLUTCH

MAGNET CLUTCH

Component Function Check

INFOID:0000000006024123

1.

PERFORM AUTO ACTIVE TEST

Perform IPDM E/R auto active test. Refer to 

XX-XX, "*****"

.

Does the magnet clutch operate?

YES

>> INSPECTION END

NO

>> Refer to 

HAC-104, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006024124

1.

CHECK MAGNET CLUTCH

1.

Turn the ignition switch OFF.

2.

Disconnect the magnet clutch connector. 

3.

Directly apply the battery voltage to the magnet clutch. Check for operation visually and by sound. 

Does it operate normally?

YES

>> GO TO 2.

NO

>> Replace the compressor. 

2.

CHECK MAGNET CLUTCH CIRCUIT CONTINUITY

1.

Turn the ignition switch OFF.

2.

Disconnect the IPDM E/R connector.

3.

Check continuity between magnet clutch harness connector and IPDM E/R harness connector. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the harnesses and connectors. 

3.

CHECK FUSE

Check 10A fuse (No. 43, located in the IPDM E/R). 
NOTE:
Refer to 

XX-XX, "*****"

. 

Is the inspection result normal?

YES

>> Replace the IPDM E/R. 

NO

>> Replace the fuse after repairing the applicable circuit. 

IPDM E/R

Magnet clutch

Continuity

Connector

Terminal

Connector

Terminal

E14

64

F17

1

Existed

A/C SWITCH

HAC-105

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

A/C SWITCH

Description

INFOID:0000000006024125

• Each signal is sent to BCM by pressing the A/C switch.
• BCM judges the recognition that A/C switch is ON or OFF according to input switch signal.

Component Function Check

INFOID:0000000006024126

1.

CHECK A/C SWITCH SIGNAL

With CONSULT-III

1.

Turn the ignition switch ON.

2.

Select the “AIR COND SW” on “DATA MONITOR” in BCM.

3.

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

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to 

HAC-105, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006024127

1.

CHECK FUSE

Check 10A fuse [NO. 15, located in the fuse block (J/B)].
NOTE:
Refer to 

XX-XX, "*****"

.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Replace fuse after repairing the applicable circuit.

2.

CHECK THERMO CONTROL AMP. POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the thermo control amp. connector.

3.

Turn the ignition switch ON.

4.

Check voltage between thermo control amp. harness connector and the ground.

Is inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the harness or connector between thermo control amp. and fuse.

3.

CHECK A/C SWITCH SIGNAL OUTPUT

1.

Turn the ignition switch OFF. 

2.

Disconnect the A/C control connector.

3.

Turn the ignition switch ON.

4.

Check output waveform between A/C switch harness connector and the ground with using oscilloscope.

Monitor item

Condition

Status

AIR COND SW

A/C switch

While pushing

On

While not pushing

Off

(+)

(

−

)

Voltage

(Approx.)

Thermo control amp.

—

Connector

Terminal

M44

1

Ground

Battery voltage