NISSAN TIIDA 2007 Service Repair Manual

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)]
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Mode Door Motor Diagnosis ProcedureINFOID: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
21
Ye s 3
4
6
SJIA0948E
AB
Continuity
Connector Terminal Connector Terminal
Front air con-
trol: M5123
Mode door mo-
tor: M873
Ye s 24 6
25 1
26 4
SJIA0956E
Connector Terminal
GroundContinuity
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 DescriptionINFOID: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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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 CheckINFOID: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

HAC-112
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
AIR MIX DOOR MOTOR
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair as necessary.
6. 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 7.
NO >> Repair as necessary.
7. 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 8.
NO >> Repair as necessary.
8. 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 9.
NO >> Repair as necessary.
9. 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 10
NO >> Repair as necessary.
10. 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.
Air Mix Door Motor Diagnosis ProcedureINFOID:0000000001547409
SYMPTOM:
 Discharge air temperature does not change.
 Air mix door motor does not operate.
DIAGNOSTIC PROCEDURE FOR AIR MIX DOOR MOTOR
1.CHECK AIR MIX DOOR MOTOR

AIR MIX DOOR MOTOR
HAC-113
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
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1. Turn ignition switch OFF.
2. Disconnect air mix door motor connector M88.
3. Check continuity between air mix door motor terminals 2 and 1,
3, 4, 6.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace air mix door motor. Refer to XX.
2.CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND AIR MIX DOOR MOTOR
1. Disconnect front air control connector M51.
2. Check continuity between front air control harness connector
M51 (A) terminal 19, 20, 21, 22 and air mix door motor harness
connector M88 (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 19, 20, 21, 22 and ground.
Is the inspection result normal?
YES >> Replace front air control. Refer to XX.
NO >> Repair harness or connector.
Terminals Continuity
21
Ye s 3
4
6
SJIA0948E
AB
Continuity
Connector Terminal Connector Terminal
Front air con-
trol: M5119
Air mix door
motor: M883
Ye s 20 6
21 1
22 4
SJIA0960E
Connector Terminal
GroundContinuity
Front air control:
M51 19
No 20
21
22
SJIA0961E

HAC-114
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
INTAKE DOOR MOTOR
INTAKE DOOR MOTOR
System DescriptionINFOID:0000000001547411
SYSTEM DESCRIPTION
Component Parts
Intake door control system components are: Front air control
 Intake door motor
 In-vehicle sensor
 Ambient sensor
 Sunload sensor
 Intake sensor
ECM
System Operation
Suction opening is basically fixed in the position FRESH when DEF switch, FRE switch, or OFF switch (only at
the time of REC switch OFF) is pressed or when A/C switch is OFF. It is fixed in the position RECIRCULATION
when REC switch is pressed. It is automatically controlled at all other times.
During automatic control of suction opening, any of FRESH, 20% FRESH and RECIRCULATION is selected
according to the target opening angle of air mix door calculated by front air control based on the in-vehicle
temperature, ambient temperature and the amount of sunload.
Intake Door Control Specification
COMPONENT DESCRIPTION
Intake Door Motor
AWIIA0294GB
AWIIA0295GB

INTAKE DOOR MOTOR
HAC-115
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
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The intake door motor is attached to the A/C unit assembly. It rotates
so that air is drawn from inlets set by the front air control Motor rota-
tion is conveyed to a lever which activates the intake door.
Intake Door Motor Component Function CheckINFOID:0000000001569474
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - INTAKE DOOR
1. Press REC ( ) switch one time. The recirculation indicator should illuminate.
2. Press FRE ( ) switch one time. The fresh indicator should illuminate.
3. Listen for intake door position change (you should hear blower sound change slightly).
Can a symptom be duplicated?
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
SJIA0814E

HAC-116
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
INTAKE DOOR MOTOR
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 .
Intake Door Motor Diagnosis ProcedureINFOID:0000000001547413
SYMPTOM: Intake door does not change.
 Intake door motor does not operate normally.
DIAGNOSTIC PROCEDURE FOR INTAKE DOOR MOTOR
1.CHECK POWER SUPPLY FOR INTAKE DOOR MOTOR
1. Turn ignition switch ON.
2. Check voltage between intake door motor harness connector
M89 terminal 5, 6 and 6, 5.
Is the inspection result normal?
YES >> Replace intake door motor. Refer to XX.
NO >> GO TO 2.
2.CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND INTAKE DOOR MOTOR
1. Turn ignition switch OFF.
2. Disconnect front air control connector M51.
3. Disconnect intake door motor connector M89.
4. Check continuity between front air control harness connector
M51 (A) terminal 27, 36 and intake door motor harness connec-
tor M89 (B) terminal 5, 6.
Is the inspection result normal?
YES >> Replace front air control. Refer to XX.
Te r m i n a l s
ConditionVo l ta g e
(Approx.)
ConnectorTe r m i n a l
(+) (−)
Intake door motor: M895 6 FRE → REC
12 V
6 5 REC → FRE
SJIA0957E
AB
Continuity
Connector Terminal Connector Terminal
Front air control:
M5127
Intake door motor:
M895
Ye s
36 6
SJIA0955E

INTAKE DOOR MOTOR
HAC-117
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
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NO >> Repair harness or connector.