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
.
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
.
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-
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
.
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-
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
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
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
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A
B
HAC
N
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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)]
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HAC
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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
.
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
.
AWIIA0293GB
SJIA0813E
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