Nissan Qashqai (2007-2010). Manual - part 924

HAC-56

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

AIR MIX DOOR MOTOR

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair harness or connector.

8.

CHECK AIR MIX DOOR MOTOR (LEFT SIDE) GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect air mix door motor (left side) connector.

3.

Check continuity between air mix door motor (left side) harness connector M306 terminal 2 and ground.

Is the inspection result normal?

YES

>> Replace air mix door motor (left side).

NO

>> Repair harness or connector.

9.

CHECK AIR MIX DOOR MOTOR (RIGHT SIDE)

Check air mix door motor (right side). Refer to 

VTL-39, "Exploded View"

.

Is it installed normally?

YES

>> GO TO 10.

NO

>> Replace air mix door motor (right side).

10.

CHECK POWER SUPPLY FOR AUTO AMP.

1.

Turn ignition switch ON.

2.

Check voltage between auto amp. harness connector M53 terminal 20 and ground.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Replace auto amp.

11.

CHECK SIGNAL FOR AUTO AMP. 

Confirm A/C LAN signal between auto amp. harness connector M53 terminal 3 and ground using an oscillo-
scope.

(+)

(

−

)

Voltage

Air mix door motor (left side)

—

Connector

Terminal

M306

3

Ground

SJIA1453J

Air mix door motor (left side)

—

Continuity

Connector

Terminal

M306

2

Ground

Continuity should exist

(+)

(

−

)

Voltage

Auto amp.

—

Connector

Terminal

M53

20

Ground

Battery voltage

AIR MIX DOOR MOTOR

HAC-57

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> Replace auto amp.

12.

CHECK POWER SUPPLY FOR AIR MIX DOOR MOTOR (RIGHT SIDE)

Check voltage between air mix door motor (right side) harness connector M307 terminal 1 and ground.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Repair harness or connector.

13.

CHECK SIGNAL FOR AIR MIX DOOR MOTOR (RIGHT SIDE)

Confirm A/C LAN signal between air mix door motor (right side) harness connector M307 terminal 3 and
ground using an oscilloscope.

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> Repair harness or connector.

14.

CHECK AIR MIX DOOR MOTOR (RIGHT SIDE) GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect air mix door motor (right side) connector.

3.

Check continuity between air mix door motor (right side) harness connector M307 terminal 2 and ground.

(+)

(

−

)

Voltage

Auto amp.

—

Connector

Terminal

M53

3

Ground

SJIA1453J

(+)

(

−

)

Voltage

Air mix door motor (right side)

—

Connector

Terminal

M307

1

Ground

Battery voltage

(+)

(

−

)

Voltage

Air mix door motor (right side)

—

Connector

Terminal

M307

3

Ground

SJIA1453J

Air mix door motor (right side)

—

Continuity

Connector

Terminal

M307

2

Ground

Continuity should exist

HAC-58

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

AIR MIX DOOR MOTOR

Is the inspection result normal?

YES

>> Replace air mix door motor (right side).

NO

>> Repair harness or connector.

INTAKE DOOR MOTOR

HAC-59

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

INTAKE DOOR MOTOR

Description

INFOID:0000000000954649

COMPONENT DESCRIPTION

Intake Door Motor

The intake door motor (1) is attached to the A/C unit. It rotates so
that air is drawn from inlets set by the auto amp. Motor rotation is
conveyed to a lever which activates the intake door.

Component Function Check

INFOID:0000000000954650

1.

CONFIRM SYMPTOM BY PERFORMING THE FOLLOWING OPERATIONAL CHECK

1.

Press recirculation (REC) switch.

2.

REC indicator should illuminate.

3.

Listen for intake door position change. (Slight change of blower sound can be heard.)

4.

Press fresh (FRE) switch.

5.

FRE indicator should illuminate.

Is the inspection result normal?

YES

>> END.

NO

>> Go to diagnosis procedure. Refer to 

HAC-59, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000954651

1.

PERFORM SELF-DIAGNOSIS STEP-2

Perform self-diagnosis STEP-2. Refer to 

HAC-27, "Diagnosis Description"

, see No. 1 to 3.

Does code No. 20 appear on the display?

YES

>> GO TO 2.

NO

>> Go to appropriate malfunctioning sensor circuit. Refer to 

HAC-27, "Diagnosis Description"

, see

No. 11.

2.

PERFORM SELF-DIAGNOSIS STEP-4

Perform self-diagnosis STEP-4. Refer to 

HAC-27, "Diagnosis Description"

, see No. 1 to 6.

Is it operated normally?

YES

>> END.

NO

>> GO TO 3.

3.

CHECK INTAKE DOOR CONTROL LINKAGE

Check intake door control linkage.

Is it installed normally?

YES

>> GO TO 4.

NO

>> Repair or adjust control linkage.

4.

CHECK POWER SUPPLY FOR AUTO AMP.

1.

Turn ignition switch ON.

2.

Check voltage between auto amp. harness connector M53 terminal 20 and ground.

:

Vehicle front

JPIIA0027ZZ