Nissan Tiida C11. Manual - part 861

HAC-108

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

MODE DOOR MOTOR

YES

>> GO TO 2.

NO

>> Perform a complete operational check. Refer to 

HAC-87, "Operational Check"

.

2.

CHECK FOR SERVICE BULLETINS

Check for any service bulletins.

>> GO TO 3.

3.

PERFORM SELF-DIAGNOSIS.

Perform the self-diagnosis function. Refer to 

HAC-98, "Front Air Control Self-Diagnosis"

.

Are any self-diagnosis codes present?

YES

>> Repair as necessary.

NO

>> GO TO 4.

4.

 CHECK AMBIENT SENSOR CIRCUIT

Perform diagnostic procedure for the ambient sensor circuit. Refer to 

HAC-130, "Ambient Sensor Diagnosis

Procedure"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair as necessary.

5.

 CHECK IN-VEHICLE SENSOR CIRCUIT

Perform diagnostic procedure for the in-vehicle sensor circuit. Refer to 

HAC-133, "In-Vehicle Sensor Diagno-

sis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair as necessary.

6.

 CHECK SUNLOAD SENSOR CIRCUIT

Perform diagnostic procedure for the sunload sensor circuit. Refer to 

HAC-136, "Sunload Sensor Diagnosis

Procedure"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair as necessary.

7.

 CHECK INTAKE SENSOR CIRCUIT

Perform diagnostic procedure for the intake sensor circuit. Refer to 

HAC-139, "Intake Sensor Diagnosis Pro-

cedure"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair as necessary.

8.

 CHECK AIR MIX DOOR MOTOR PBR CIRCUIT

Perform diagnostic procedure for the air mix door motor PBR circuit. Refer to 

HAC-112, "Air Mix Door Motor

Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair as necessary.

9.

 RECHECK FOR SYMPTOMS 

Perform a complete operational check and check for any symptoms. Refer to 

HAC-87, "Operational Check"

.

Does another symptom exist?

YES

>> Repair as necessary.

NO

>> Replace front air control. Refer to XX.

MODE DOOR MOTOR

HAC-109

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Mode Door Motor Diagnosis Procedure

INFOID:0000000001547406

SYMPTOM:

• Air outlet does not change.
• Mode door motor does not operate normally.

DIAGNOSTIC PROCEDURE FOR MODE DOOR MOTOR

1.

CHECK MODE DOOR MOTOR 

1.

Turn ignition switch OFF.

2.

Disconnect mode door motor connector M87.

3.

Check continuity between mode door motor terminals 2 and 1,
3, 4, 6.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace mode door motor. Refer to XX.

2.

CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND MODE DOOR MOTOR

1.

Disconnect front air control connector M51.

2.

Check continuity between front air control harness connector
M51 (A) terminal 23, 24, 25, 26 and mode door motor harness
connector M87 (B) terminal 3, 6, 1, 4.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND GROUND

Check continuity between front air control harness connector M51
terminal 23, 24, 25, 26 and ground.

Is the inspection result normal?

YES

>> Replace front air control. Refer to XX.

NO

>> Repair harness or connector.

Terminals

Continuity

2

1

Yes

3

4

6

SJIA0948E

A

B

Continuity

Connector

Terminal

Connector

Terminal

Front air con-

trol: M51

23

Mode door mo-

tor: M87

3

Yes

24

6

25

1

26

4

SJIA0956E

Connector

Terminal

Ground

Continuity

Front air control: 

M51 

23

No

24

25

26

SJIA0958E

HAC-110

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

AIR MIX DOOR MOTOR

AIR MIX DOOR MOTOR

System Description

INFOID:0000000001547407

SYSTEM DESCRIPTION

Component Parts

Air mix door control system components are:

• Front air control
• Air mix door motor
• In-vehicle sensor
• Intake sensor
• Ambient sensor
• Sunload sensor

System Operation

The front air control receives data from each of the sensors. When setting a target temperature by using tem-
perature button, front air control corrects preset temperature, performs an arithmetical operation based on sig-
nals from sensors and determines opening angle of target air mix door.
Air mix door is constantly controlled so as to keep optimum opening angle of air mix door based on target and
present opening angles of air mix door. Air mix door is fixed in the full cold position when preset temperature is
set to 18

°

C, and full hot position when set to 32

°

C.

Drive System of Step Motor Type Door Motor

• Motor is actuated in sequence by energizing four drive coils. 
• Rotation direction can be changed by changing pattern of excitation.

AWIIA0292GB

SJIA0970E

AIR MIX DOOR MOTOR

HAC-111

< COMPONENT DIAGNOSIS >

[AUTO AIR CONDITIONER (W/O NAVI)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Air Mix Door Control Specification

COMPONENT DESCRIPTION

Air Mix Door Motor

The air mix door motor is attached to the A/C unit assembly. It
rotates so that the air mix door is opened or closed to a position set
by the front air control Motor rotation is conveyed through a shaft
and the air mix door position is then feedback to the front air control
by PBR built-in air mix door motor.

Air Mix Door Motor Component Function Check

INFOID:0000000001569469

INSPECTION FLOW

1.

CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE INCREASE

1.

Press the temperature control switch UP until 32

°

C (90

°

F) is displayed.

2.

Check for hot air at discharge air outlets.

>> GO TO 2.

2.

CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE

1.

Press the temperature control switch DOWN until 18

°

C (64

°

F) is displayed.

2.

Check for cold air at discharge air outlets.

Can a symptom be duplicated?

YES

>> GO TO 3.

NO

>> Perform a complete operational check. Refer to 

HAC-87, "Operational Check"

.

3.

CHECK FOR SERVICE BULLETINS

Check for any service bulletins.

>> GO TO 4.

4.

PERFORM SELF-DIAGNOSIS.

Perform the self-diagnosis function. Refer to 

HAC-98, "Front Air Control Self-Diagnosis"

.

Are any self-diagnosis codes present?

YES

>> Repair as necessary.

NO

>> GO TO 5.

5.

 CHECK AMBIENT SENSOR CIRCUIT

Perform diagnostic procedure for the ambient sensor circuit. Refer to 

HAC-130, "Ambient Sensor Diagnosis

Procedure"

.

AWIIA0293GB

SJIA0813E