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

HAC-28

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (AUTO AMP.)

Turn ignition switch ON.

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.

STEP-1: LEDS AND DISPLAY ARE CHECKED

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

YES

>> GO TO 3.

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

HAC-115, "Inspection procedure"

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.

>> GO TO 11.

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.

>> GO TO 12.

STEP-4: OPERATION OF EACH DOOR MOTOR IS CHECKED

JPIIA0173ZZ

JPIIA0116GB

JPIIA0117GB

DIAGNOSIS SYSTEM (AUTO AMP.)

HAC-29

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

HAC

Turn temperature control dial (driver side) clockwise.

Press

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

indicated on the display.

>> GO TO 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

HAC-50, "Diagnosis Procedure"

JPIIA0118GB

JPIIA0082GB

Code No.

Mode door position

VENT

B/L 1

B/L 2

FOOT

D/F

DEF

Intake door position

REC

20% FRE

FRE

Air mix door position

FULL COOL

FULL HOT

Blower motor voltage

5 V

11.75 V

8.5 V

11.75 V

Compressor

OFF

High-level ventilator
door position

OPEN

SHUT

HAC-30

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (AUTO AMP.)

STEP-5: TEMPERATURE OF EACH SENSOR IS CHECKED

Turn temperature control dial (driver side) clockwise.

Code No. 51 appears on the display.

>> GO TO 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.

>> Go to OAT Sensor Circuit. Refer to

HAC-77, "Diagnosis

Procedure"

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.

>> 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.

>> 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 /

−

OAT sensor

HAC-77, "Diagnosis Procedure"

22 /

−

In-vehicle sensor

HAC-81, "Diagnosis Procedure"

24 /

−

Intake sensor

HAC-86, "Diagnosis Procedure"

25 /

−

Sunload sensor

HAC-83, "Diagnosis Procedure"

26 /

−

Air mix door motor PBR (Driver side)

HAC-54, "Diagnosis Procedure"

27 /

−

Air mix door motor PBR (Passenger side)

DIAGNOSIS SYSTEM (AUTO AMP.)

HAC-31

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

HAC

*: 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

→

to 31

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

→

Return to 33

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

→

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

High-level ventilator door open

High-level ventilator door motor

HAC-50, "Diagnosis Procedure"

High-level ventilator door shut

VENT

Mode door motor

HAC-47, "Diagnosis Procedure"

D/F 1

D/F 2

DEF

FRE

Intake door motor

HAC-59, "Diagnosis Procedure"

20% FRE

REC

JPIIA0115GB

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