Nissan March K13. Manual - part 391

HAC-98

< BASIC INSPECTION >

[MANUAL AIR CONDITIONER]

DIAGNOSIS AND REPAIR WORKFLOW

1.

INTERVIEW FOR MALFUNCTION

Interview the symptom to the customer.

>> GO TO 2.

2.

SYMPTOM CHECK

Check the symptom from the customer's information.

>> GO TO 3.

3.

BASIC INSPECTION

Check the operation of each part. Check that any symptom occurs other than the interviewed symptom.

>> GO TO 4.

4.

SELF-DIAGNOSIS WITH CONSULT-III

Perform the self-diagnosis with CONSULT-III. Check that any DTC is detected.
Is any DTC detected?

YES

>> GO TO 5.

NO

>> GO TO 6.

5.

TROUBLE DIAGNOSIS BY DTC

Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.

>> GO TO 6.

6.

SYMPTOM DIAGNOSIS

Perform the symptom diagnosis. Specify the malfunctioning part.

>> GO TO 7.

7.

MALFUNCTION PART REPAIR

Repair or replace the malfunctioning part.

>> GO TO 8.

8.

REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)

Perform the self-diagnoses with CONSULT-III. Check that any DTC is not detected. Erase DTC if DTC is
detected before the repair. Check that DTC is not detected again.

Is any or malfunction result or DTC detected?

YES

>> If DTC is detected, GO TO 5.

NO

>> GO TO 9.

9.

REPAIR CHECK (OPERATION CHECK)

Check the operation of each part.
Does it operate normally?

YES

>> INSPECTION END

NO

>> GO TO 3.

OPERATION INSPECTION

HAC-99

< BASIC INSPECTION >

[MANUAL AIR CONDITIONER]

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OPERATION INSPECTION

Description & Inspection

INFOID:0000000006024102

DESCRIPTION

The purpose of the operational check is to check that the individual system operates normally.

INSPECTION PROCEDURE

1.

CHECK BLOWER MOTOR

1.

Start the engine.

2.

Operate the fan control dial. Check that the fan speed changes. Check the operation for all fan speeds.

3.

Leave blower on maximum speed.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Blower motor system malfunction. Refer to 

HAC-101, "Diagnosis Procedure"

.

2.

CHECK DISCHARGE AIR

1.

Operate MODE dial to each position.

2.

Check that the air outlets change according to each indicated air outlet by placing a hand in front of the
outlets. Refer to 

XX-XX, "*****"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the mode door cable.

3.

CHECK INTAKE AIR

1.

Set air intake lever to REC position.

2.

Operate air intake lever to FRE position.

3.

Listen for intake door position change (you should hear blower sound change slightly).

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the intake door cable.

4.

CHECK A/C SWITCH

1.

Press the A/C switch.

2.

Check that the indicator of the A/C switch turns ON. Check visually and by sound that the compressor
operates.

3.

Press the A/C switch again.

4.

Check that the indicator of the A/C switch turns OFF. Check that the compressor stops.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Magnet clutch system malfunction. Refer to 

HAC-104, "Diagnosis Procedure"

.

5.

CHECK TEMPERATURE DECREASE

1.

Operate the compressor.

2.

Turn the temperature control dial to full cold position.

3.

Check that the cool air blows from the outlets.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Insufficient cooling. Refer to 

HAC-111, "Diagnosis Procedure"

.

6.

CHECK TEMPERATURE INCREASE

1.

Turn temperature control dial to full hot position after warming up the engine.

2.

Check that warm air blows from outlets.

Is the inspection result normal?

Check condition

: Engine running at normal operating temperature.

HAC-100

< BASIC INSPECTION >

[MANUAL AIR CONDITIONER]

OPERATION INSPECTION

YES

>> INSPECTION END

NO

>> Insufficient heating. Refer to 

HAC-112, "Diagnosis Procedure"

.

BLOWER MOTOR

HAC-101

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONER]

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DTC/CIRCUIT DIAGNOSIS

BLOWER MOTOR

Diagnosis Procedure

INFOID:0000000006024120

1.

CHECK FUSE

Check 15A fuses [Nos. 14 and 16, located in the fuse block (J/B)].
NOTE:
Refer to 

XX-XX, "*****"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace fuse after repairing the applicable circuit.

2.

CHECK POWER SUPPLY FOR BLOWER MOTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the blower motor connector.

3.

Turn the ignition switch ON.

4.

Check voltage between blower motor harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

CHECK BLOWER RELAY

1.

Turn the ignition switch OFF.

2.

Perform the component inspection of blower relay. Refer to 

HAC-102, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace the harness or connector between blower motor and fuse.

NO

>> Replace the blower relay.

4.

CHECK A/C CONTROL GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the A/C control connector.

3.

Check continuity between A/C control harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair the harness or connector.

5.

CHECK CONTINUITY BETWEEN A/C CONTROL AND BLOWER MOTOR

Check continuity A/C control harness connector and blower motor harness connector.

Is the inspection result normal?

(+)

(

−

)

Voltage

(Approx.)

Blower motor

—

Connector

Terminal

M39

1

Ground

Battery voltage

A/C control

—

Continuity

Connector

Terminal

M53

6

Ground

Existed

A/C control

Blower motor

Continuity

Connector

Terminal

Connector

Terminal

M53

1

M39

2

Existed