Nissan Qashqai (2007-2010). Manual — part 917

HAC-28

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (AUTO AMP.)

1.

Turn ignition switch ON.

2.

Set in self-diagnosis mode as follows. Within 10 seconds after starting engine (ignition switch is turned
ON.), press ON/OFF switch for at least 5 seconds.

NOTE:
If battery voltage drops below 12 V during diagnosis STEP-3, door motor speed becomes slower and as a
result, the system may generate an error even when operation is normal. To avoid this, start engine before
performing this diagnosis.

>> GO TO 2.

2.

STEP-1: LEDS AND DISPLAY ARE CHECKED

Check LEDs (1) illumination and display screen (2).
Is this inspection result normal?

YES

>> GO TO 3.

NO

>> Malfunctioning ON/OFF switch or auto amp. Refer to

HAC-115, "Inspection procedure"

.

3.

STEP-2: SENSOR AND DOOR MOTOR CIRCUITS ARE CHECKED FOR OPEN OR SHORT CIRCUIT

Turn temperature control dial (driver side) clockwise.
Does code No. 20 appear on the display?

YES

>> GO TO 4.

NO

>> GO TO 11.

4.

STEP-3: MODE DOOR, HIGH-LEVEL VENTILATOR DOOR AND INTAKE DOOR POSITIONS ARE

CHECKED

Turn temperature control dial (driver side) clockwise.
Does code No. 30 appear on the display?

YES

>> GO TO 5.

NO

>> GO TO 12.

5.

STEP-4: OPERATION OF EACH DOOR MOTOR IS CHECKED

JPIIA0173ZZ

JPIIA0116GB

JPIIA0117GB

DIAGNOSIS SYSTEM (AUTO AMP.)

HAC-29

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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HAC

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1.

Turn temperature control dial (driver side) clockwise.

2.

Press

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

indicated on the display.

>> GO TO 6.

6.

CHECK ACTUATORS

Refer to the following chart and check discharge air flow, air temperature, blower motor voltage and compres-
sor operation.

Checks must be made visually, by listening the sound, or by touching air outlets with hand, etc. for improper
operation.
*1: FOOT position during automatic control. Refer to

HAC-6, "Description & Inspection"

.

Is this inspection result normal?

YES

>> GO TO 7.

NO-1

>> Air outlet does not change. Go to Mode Door Motor Circuit. Refer to

HAC-47, "Diagnosis Proce-

dure"

.

NO-2

>> Intake door does not change. Go to Intake Door Motor Circuit. Refer to

HAC-59, "Diagnosis Pro-

cedure"

.

NO-3

>> Discharge air temperature does not change. Go to Air Mix Door Motor Circuit. Refer to

HAC-54,

"Diagnosis Procedure"

.

NO-4

>> Blower motor operation is malfunctioning. Go to Blower Motor Circuit. Refer to

HAC-62, "Diagno-

sis Procedure"

.

NO-5

>> Magnet clutch does not engage. Go to Magnet Clutch Circuit. Refer to

HAC-66, "Diagnosis Proce-

dure"

.

NO-6

>> High-level ventilator door does not change. Go to High-level Ventilator Door Motor Circuit. Refer

to

HAC-50, "Diagnosis Procedure"

.

JPIIA0118GB

JPIIA0082GB

Code No.

41

42

43

44

45

46

Mode door position

VENT

B/L 1

B/L 2

FOOT

*1

D/F

DEF

Intake door position

REC

REC

20% FRE

FRE

FRE

FRE

Air mix door position

FULL COOL

FULL COOL

FULL HOT

FULL HOT

FULL HOT

FULL HOT

Blower motor voltage

5 V

11.75 V

8.5 V

8.5 V

8.5 V

11.75 V

Compressor

ON

ON

OFF

OFF

ON

ON

High-level ventilator
door position

OPEN

OPEN

OPEN

OPEN

SHUT

SHUT

HAC-30

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (AUTO AMP.)

7.

STEP-5: TEMPERATURE OF EACH SENSOR IS CHECKED

1.

Turn temperature control dial (driver side) clockwise.

2.

Code No. 51 appears on the display.

>> GO TO 8.

8.

CHECK OAT SENSOR

Press

(DEF) switch one time. Temperature detected by OAT

sensor is indicated on the display.
NOTE:
If the temperature indicated on the display greatly differs from the
actual temperature, check sensor circuit first, and then check sensor.

Is this inspection result normal?

YES

>> GO TO 9.

NO

>> Go to OAT Sensor Circuit. Refer to

HAC-77, "Diagnosis

Procedure"

.

9.

CHECK IN-VEHICLE SENSOR

Press

(DEF) switch for the one time. Temperature detected by

in-vehicle sensor is indicated on the display.
NOTE:
If the temperature indicated on the display greatly differs from the
actual temperature, check sensor circuit first, and then check sensor.

Is this inspection result normal?

YES

>> GO TO 10.

NO

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

HAC-81, "Diag-

nosis Procedure"

.

10.

CHECK INTAKE SENSOR

Press

(DEF) switch for the one time. Temperature detected by

intake sensor is indicated on the display.
NOTE:
If the temperature indicated on the display greatly differs from the
actual temperature, check sensor circuit first, and then check sensor.

Is this inspection result normal?

YES

>> GO TO 11.

NO

>> Go to Intake Sensor Circuit. Refer to

HAC-86, "Diagno-

sis Procedure"

.

11.

CHECK MALFUNCTIONING SENSOR AND DOOR MOTOR

Refer to the following chart for malfunctioning code No.
(If two or more sensors and door motors malfunction, corresponding code Nos. indicates 1 second each.)

JPIIA0110GB

JPIIA0111GB

JPIIA0112GB

Code No.

Malfunctioning sensor and door motor (Including circuits)

Reference

21 /

−

21

OAT sensor

HAC-77, "Diagnosis Procedure"

22 /

−

22

In-vehicle sensor

HAC-81, "Diagnosis Procedure"

24 /

−

24

Intake sensor

HAC-86, "Diagnosis Procedure"

25 /

−

25

Sunload sensor

*

HAC-83, "Diagnosis Procedure"

26 /

−

26

Air mix door motor PBR (Driver side)

HAC-54, "Diagnosis Procedure"

27 /

−

27

Air mix door motor PBR (Passenger side)

DIAGNOSIS SYSTEM (AUTO AMP.)

HAC-31

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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*: Perform self-diagnosis STEP-2 under sunshine.
When performing indoors, aim a light (more than 60 W) at sunload sensor, otherwise code No. 25 will indicate
despite that sunload sensor is functioning properly.

>> INSPECTION END

12.

CHECK MALFUNCTIONING DOOR MOTOR POSITION SWITCH

Mode, high-level ventilator and/or intake door motor PBR(s) is/are malfunctioning.

(If two or more door motors are malfunctioning, corresponding code Nos. indicates 1 second each.)
*1: If high-level ventilator door motor harness connector is disconnected, the following display pattern will
appear.
31

→

32

→

to 31

*2: If mode door motor harness connector is disconnected, the following display pattern will appear.
33

→

34

→

35

→

36

→

Return to 33

*3: If intake door motor harness connector is disconnected, the following display pattern will appear.
37

→

38

→

39

→

Return to 37

*4: FOOT position during automatic control. Refer to

HAC-6, "Description & Inspection"

.

>> INSPECTION END

CONSULT-III Function

INFOID:0000000000954637

CONSULT-III APPLICATION ITEMS

CONSULT-III can display each diagnosis item using the diagnosis test modes shown following.

JPIIA0114GB

Code No.

*1 *2 *3

Mode, high-level ventilator or intake door position

Reference

31

High-level ventilator door open

High-level ventilator door motor

HAC-50, "Diagnosis Procedure"

32

High-level ventilator door shut

33

VENT

Mode door motor

HAC-47, "Diagnosis Procedure"

34

D/F 1

*4

35

D/F 2

36

DEF

37

FRE

Intake door motor

HAC-59, "Diagnosis Procedure"

38

20% FRE

39

REC

JPIIA0115GB