Nissan Tiida C11. Manual - part 859

HAC-100

< FUNCTION DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

SELF-DIAGNOSIS FUNCTION

7.

STEP-4: OPERATION OF EACH DOOR MOTOR IS CHECKED

1.

Press temperature control switch (UP:  ).

2.

Press 

 (DEF) switch. Code No. of each door motor test is

indicated on the display.

>> GO TO 8.

8.

CHECK ACTUATORS

Refer to 

HAC-94, "Discharge Air Flow"

 and confirm discharge air flow, air temperature, blower motor voltage

and compressor operation.

Checks must be made visually, by listening to any noise, or by touching air outlets with your hand, etc. for
improper operation.

OK or NG

OK

>> GO TO 9.

NG

>> • Air outlet does not change.

Go to Mode Door Motor Circuit. Refer to 

HAC-109, "Mode Door Motor Diagnosis Procedure"

.

• Intake door does not change.

Go to Intake Door Motor Circuit. Refer to 

HAC-116, "Intake Door Motor Diagnosis Procedure"

.

• Blower motor operation is malfunctioning.

Go to Blower Motor Circuit. Refer to 

HAC-120, "Front Blower Motor Diagnosis Procedure"

.

• Magnet clutch does not engage.

Go to Magnet Clutch Circuit. Refer to 

HAC-125, "Magnet Clutch Diagnosis Procedure"

.

• Discharge air temperature does not change.

Go to Air Mix Door Motor Circuit. Refer to 

HAC-112, "Air Mix Door Motor Diagnosis Procedure"

.

9.

STEP-5: TEMPERATURE OF EACH SENSOR IS CHECKED

1.

Press temperature control switch (UP:  ).

2.

Code No. 5 appears on the display.

>> GO TO 10.

10.

CHECK AMBIENT SENSOR

RHA495A

Code  No.

41

42

43

44

45

46

Mode door position

VENT

B/L 1

B/L 2

FOOT

D/F

DEF

Intake door position

REC

REC

20% FRE

80% FRE

FRE

FRE

Air mix door position

FULL COLD

FULL COLD

50%

50%

FULL HOT

FULL HOT

Blower motor voltage

5V

10.5V

8.5V

8.5V

8.5V

Battery voltage

Compressor

ON

ON

ON

OFF

OFF

ON

Blower motor ON signal

12V

12V

12V

1V

1V

12V

SELF-DIAGNOSIS FUNCTION

HAC-101

< FUNCTION DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

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Press 

 (DEF) switch one time. Temperature detected by ambient

sensor is indicated on the display.
NOTE:
If temperature shown on display greatly differs from actual tempera-
ture, check sensor circuit first, then inspect sensor.
OK or NG

OK

>> GO TO 11.

NG

>> Go to Ambient Sensor Circuit. Refer to 

HAC-130, "Ambi-

ent Sensor Diagnosis Procedure"

.

11.

CHECK IN-VEHICLE SENSOR

Press 

 (DEF) switch second time. Temperature detected by in-

vehicle sensor is indicated on the display.
NOTE:
If temperature shown on display greatly differs from actual tempera-
ture, check sensor circuit first, then inspect sensor.

OK or NG

OK

>> GO TO 12.

NG

>> Go to In-vehicle Sensor Circuit. Refer to 

HAC-133, "In-

Vehicle Sensor Diagnosis Procedure"

.

12.

CHECK INTAKE SENSOR

Press 

 (DEF) switch third time. Temperature detected by intake

sensor is indicated on the display.
NOTE:
If temperature shown on display greatly differs from actual tempera-
ture, check sensor circuit first, then inspect sensor.

OK or NG

OK

>> 1.

Turn ignition switch OFF or AUTO switch ON.

2.

INSPECTION END

NG

>> Go to Intake Sensor Circuit. Refer to 

HAC-139, "Intake

Sensor Diagnosis Procedure"

.

13.

CHECK MALFUNCTIONING SENSOR

Refer to the following chart for malfunctioning code No.
(If two or more sensors malfunction, corresponding code No. blink respectively twice.)
*1: Perform self-diagnosis STEP-2 under sunshine.
When performing indoors, aim a light (more than 60W) at sunload sensor, otherwise code No.25 will indicate
despite that sunload sensor is functioning properly.

*2: 

HAC-130, "Ambient Sensor Diagnosis Procedure"

.

*3: 

HAC-133, "In-Vehicle Sensor Diagnosis Procedure"

.

*4: 

HAC-139, "Intake Sensor Diagnosis Procedure"

.

*5: 

HAC-136, "Sunload Sensor Diagnosis Procedure"

.

SJIA0744E

SJIA0746E

SJIA0748E

Code No.

Malfunctioning sensor (Including circuits)

Reference page

21 / 

AUTO 

21

Ambient sensor

*2

22 / 

AUTO 

22

In-vehicle sensor

*3

24 / 

AUTO 

24

Intake sensor

*4

25 / 

AUTO 

25

Sunload sensor 

*1

*5

26 / 

AUTO 

26

Intake door motor PBR

*6

HAC-102

< FUNCTION DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

SELF-DIAGNOSIS FUNCTION

*6: 

HAC-116, "Intake Door Motor Diagnosis Procedure"

.

>> INSPECTION END

14.

CHECK MALFUNCTIONING DOOR MOTOR POSITION SWITCH

Air mix and/or mode door motor is/are malfunctioning.

Door motor corresponding to the DTC

DTC for an inoperative harness

(If two or more air mix or mode doors are out of order, corresponding code numbers blink respectively twice.)
*1: If air mix door motor harness connector is disconnected, the following display pattern will appear.
31

→

32

→

33

→

34

→

Return to 31

*2: If mode door motor harness connector is disconnected, the following display pattern will appear.
35

→

36

→

37

→

38

→

Return to 35

*3: 

HAC-112, "Air Mix Door Motor Diagnosis Procedure"

.

*4: 

HAC-109, "Mode Door Motor Diagnosis Procedure"

.

NOTE:
• If all four terminals of each door motor show an open circuit, there

is probably a disconnected connector or an open circuit in actuator
drive power supply harness.

• If a short circuit occurs in the harness between terminal for each

door motor and drive signal, although it cannot be detected by self-
diagnosis, the door motor will vibrate when it operate.

Door Motor Starting Position Reset

SJIA0752E

Code No.*1 *2

31, 32, 33, 34

35, 36, 37, 38

Corresponding door motor

Air mix door

Mode door

Corresponding door motor

Air mix door motor

Mode door motor

Corresponding terminal
(Door motor side)

3

4

1

6

3

4

1

6

Corresponding terminal
(Front air control side)

19

22

21

20

23

26

25

24

Code number for short cir-
cuit

AUTO

31

AUTO

32

AUTO

33

AUTO

34

AUTO

35

AUTO

36

AUTO

37

AUTO

38

Code number for open cir-
cuit

31

32

33

34

35

36

37

38

Reference Page

*3

*4

AWIIA0287GB

SELF-DIAGNOSIS FUNCTION

HAC-103

< FUNCTION DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

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• Pressing the DEF switch during STEP-3 will send a reset signal to

air mix door and mode door motor to reset them to the starting
position.
During reset: The 30 and DEF switch LED will blinks. (For approx.
9 seconds)

>> INSPECTION END

AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER

The trimmer compensates for differences in range of 

±

3

°

C between temperature setting (displayed digitally)

and temperature felt by driver.
Operating procedures for this trimmer are as follows:

1.

Begin self-diagnosis STEP-5 mode. Refer to "Self-diagnosis Function".

2.

Press blower motor switch (UP: ) to set system in auxiliary mode.

3.

Display shows 0

°

C in auxiliary mechanism.

SJIA0952E

SJIA0757E