Nissan March K13. Manual - part 376

HAC-38

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS AND REPAIR WORK FLOW

11.

REPAIR CHECK (OPERATION CHECK)

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

YES

>> INSPECTION END

NO

>> GO TO 3.

OPERATION INSPECTION

HAC-39

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

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OPERATION INSPECTION

Description & Inspection

INFOID:0000000006024008

DESCRIPTION

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

INSPECTION PROCEDURE

1.

CHECK MEMORY FUNCTION

1.

Start the engine.

2.

Set the temperature to 32

°

C (90

°

F) by operating the temperature control switch. 

3.

Press OFF switch.

4.

Turn ignition switch OFF.

5.

Turn ignition switch ON.

6.

Press AUTO switch.

7.

Check that the set temperature is maintained.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Memory function malfunction. Refer to 

HAC-74, "Inspection Procedure"

.

2.

CHECK BLOWER MOTOR

1.

Start the engine.

2.

Operate the fan control switch. 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 3.

NO

>> Blower motor system malfunction. Refer to 

HAC-57, "Diagnosis Procedure"

. 

3.

CHECK DISCHARGE AIR

1.

Operate MODE switch and DEF switch 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 4.

NO

>> Mode door system malfunction. Refer to 

HAC-53, "Diagnosis Procedure"

. 

4.

CHECK INTAKE AIR

1.

Press REC switch to set the air outlet to recirculation. 

2.

The REC indicator turns ON. 

3.

Listen to intake sound and confirm air inlets change. 

4.

Press FRE switch again to set the air outlet to fresh air intake. 

5.

The FRE indicator turns ON. 

6.

Listen to intake sound and confirm air inlets change. 

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Intake door system malfunction. Refer to 

HAC-55, "Diagnosis Procedure"

. 

5.

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 6.

Check condition

: Engine running at normal operating temperature.

HAC-40

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

OPERATION INSPECTION

NO

>> Magnet clutch system malfunction. Refer to 

HAC-60, "Diagnosis Procedure"

. 

6.

CHECK DISCHARGE AIR TEMPERATURE

Operate the temperature control switch. Check that the discharge air temperature changes. 

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Air mix door system malfunction. Refer to 

HAC-51, "Diagnosis Procedure"

.

7.

CHECK TEMPERATURE DECREASE

1.

Operate the compressor. 

2.

Operate the temperature control switch to lower temperature setting at 18

°

C (60

°

F). 

3.

Check that the cool air blows from the outlets. 

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Insufficient cooling. Refer to 

HAC-69, "Diagnosis Procedure"

. 

8.

CHECK TEMPERATURE INCREASE

1.

Turn temperature control switch to raise temperature setting at 32

°

C (90

°

F) after warming up the engine.

2.

Check that warm air blows from outlets.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Insufficient heating. Refer to 

HAC-71, "Diagnosis Procedure"

. 

9.

CHECK AUTO MODE

1.

Press AUTO switch to confirm that “AUTO” is indicated on the display. 

2.

Operate the temperature control switch to check that the fan speed or air outlet changes (the air flow tem-
perature or fan speed varies depending on the ambient temperature, in-vehicle temperature, and set tem-
perature). 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to 

HAC-68, "Diagnosis Chart By Symptom"

 and perform the appropriate diagnosis. 

SYSTEM SETTING

HAC-41

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONER]

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SYSTEM SETTING

Temperature Setting Trimmer

INFOID:0000000006024009

DESCRIPTION

If the temperature felt by the customer is different than the air flow temperature controlled by the temperature
setting, the A/C auto amp. control temperature can be adjusted to compensate for the temperature setting. 

OPERATING PROCEDURES 

1.

Begin self-diagnosis STEP 5 mode. Refer to 

HAC-22, "Diagnosis Description"

.

2.

Press fan control switch (up: +) to enter the set temperature setting trimmer mode from STEP 5, and then
display shows “0

°

C (0

°

F)”.

3.

The indication temperature will be changed by 0.5

°

C (32.9

°

F) in range of 

−

3

°

C (

−

6.6

°

F) to +3

°

C (37.4

°

F)

by pressing the temperature control switch each time.

NOTE:
• When 

−

3

°

C (

−

6.6

°

F) is corrected on the temperature setting set as 25

°

C (77

°

F), the temperature controlled

by A/C auto amp. is 25

°

C (77

°

F) 

−

 3

°

C (26.6

°

F) = 22.0

°

C (71.6

°

F) and the temperature becomes lower than

the temperature setting. 

• When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10

V or less, the setting of the difference between the set temperature and control temperature may be can-
celled. 

Foot Position Setting Trimmer

INFOID:0000000006057626

DESCRIPTION

Wind distribution ratio in FOOT mode can be set.

Operating procedures for this trimmer are as per the following:

1.

Begin self-diagnosis STEP-5 mode. Refer to 

HAC-22, "Diagnosis Description"

.

2.

Press fan (UP: +) switch to set system in auxiliary mode.

3.

Press mode switch as desired.

Temperature control switch operation

Display

Correction (

°

C)

 6 time pressing

30

+3.0

 5 time pressing

25

+2.5

 4 time pressing

20

+2.0

 3 time pressing

15

+1.5

 2 time pressing

10

+1.0

 1 time pressing

5

+0.5

Initial status

0

0

 1 time pressing

z

 (A/C switch indicator) 5

−

0.5

 2 time pressing

z

 (A/C switch indicator) 10

−

1.0

 3 time pressing

z

 (A/C switch indicator) 15

−

1.5

 4 time pressing

z

 (A/C switch indicator) 20

−

2.0

 5 time pressing

z

 (A/C switch indicator) 25

−

2.5

 6 time pressing

z

 (A/C switch indicator) 30

−

3.0