sensor NISSAN TIIDA 2007 Service Repair Manual

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

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

HAC-118
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
BLOWER MOTOR CONTROL SYSTEM
BLOWER MOTOR CONTROL SYSTEM
System DescriptionINFOID:0000000001547417
SYSTEM DESCRIPTION
Component Parts
Fan speed control system components are: Front air control
 In-vehicle sensor
 Ambient sensor
 Sunload sensor
 Intake sensor
System Operation
Automatic Mode
In the automatic mode, the blower motor speed is calculated by the front air control based on input from in-
vehicle sensor, sunload sensor, intake sensor and ambient sensor.
The blower motor is applied voltage ranges from approximately 3.0 volts (lowest speed) to 12 volts (highest
speed).
The control blower speed (in the range of 3.0 to 12V), front air control supplies a gate voltage to the power
transistor. Based on this voltage, front air control controls voltage supplied to the blower motor.
Starting Fan Speed Control
Start up from COLD SOAK Condition (Automatic mode)
In a cold start up condition where the engine coolant temperature is below 56°C, the blower will not operate for
a short period of time (up to 150 seconds). The exact start delay time varies depending on the ambient and
engine coolant temperature.
In the most extreme case (very low ambient) the blower starting delay will be 150 seconds as described
above. After this delay, the blower will operate at low speed until the engine coolant temperature rises above
56°C, at which time the blower speed will increase to the objective speed.
Start up from usual or HOT SOAK Condition (Automatic mode)
The blower will begin operation momentarily after the A/C switch is pushed. The blower speed will gradually
rise to the objective speed over a time period of 3 seconds or less (actual time depends on the objective
blower speed).
Blower Speed Compensation
Sunload
When the in-vehicle temperature and the set temperature are very close, the blower will be operating at low
speed. The low speed will vary depending on the sunload. During conditions of low or no sunload, the blower
AWIIA0296GB

BLOWER MOTOR CONTROL SYSTEM
HAC-119
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
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low speed is usual low speed (approx. 4.0V). During high sunload conditions, front air control causes the
blower speed to increase (approx. 6.5V).
Fan Speed Control Specification
Front Blower Motor Component Function CheckINFOID:0000000001569475
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - FRONT BLOWER
1. Press blower motor switch UP. Blower motor should operate on low speed. The fan indicator should have
one blade illuminated.
2. Press blower motor switch UP, and continue checking blower motor speed and fan indicator until all
speeds are checked.
Can the 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-diagnostic 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?
AWIIA0297GB

HAC-120
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
BLOWER MOTOR CONTROL SYSTEM
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. 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 .
Front Blower Motor Diagnosis ProcedureINFOID:0000000001547419
SYMPTOM: Front blower motor operation is malfunctioning.
DIAGNOSTIC PROCEDURE FOR BLOWER MOTOR
SYMPTOM: Front blower motor operation is malfunctioning.
1.CHECK POWER SUPPLY FOR FRONT BLOWER MOTOR
1. Disconnect front blower motor connector M62.
2. Turn ignition switch ON.
3. Check voltage between front blower motor harness connector
M62 terminal 1 and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check power supply circuit and 15A fuses [Nos. 15 and 17, located in the fuse block (J/B)].
 If fuses are OK, check harness for open circuit. Repair or replace if necessary.
 If fuses are NG, replace fuse and check harness for short circuit. Repair or replace if necessary.
2.CHECK CIRCUIT POWER SUPPLY FOR VARIABLE BLOWER CONTROL
AWIIA0298GB
Te r m i n a l s
Vol tag e
(Approx.) (+) (−)
Connector Terminal
Ground
Front blower motor:
M621 Battery voltage
SJIA0794E

HAC-124
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MAGNET CLUTCH
MAGNET CLUTCH
System DescriptionINFOID:0000000001547430
SYSTEM DESCRIPTION
Front air control controls compressor operation by intake air temperature and signal from ECM.
Low Temperature Protection Control
Front air control will turn compressor ON or OFF as determined by a signal detected by intake sensor.
When intake air temperatures are higher than 3.5°C (38°F), the com-
pressor turns ON. The compressor turns OFF when intake air tem-
peratures are lower than 2°C (36°F).
Magnet Clutch Component Function CheckINFOID:0000000001569476
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - A/C SWITCH
1. Press the AUTO switch and A/C switch.
2. The A/C switch indicator will illuminate. Confirm that the compressor clutch engages (sound or visual
inspection).
Can the 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 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 6.
NO >> Repair as necessary.
SJIA0802E

MAGNET CLUTCH
HAC-125
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
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6. 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.
Magnet Clutch Diagnosis ProcedureINFOID:0000000001547432
DIAGNOSTIC PROCEDURE FOR MAGNET CLUTCH
SYMPTOM: Magnet clutch does not engage when A/C switch is ON.
1.CHECK INTAKE SENSOR CIRCUIT
Refer to HAC-139, "
Intake Sensor Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Malfunctioning intake sensor: Refer to XX.
2.PERFORM AUTO ACTIVE TEST
Refer to XX-XX, "*****"
.
Does the magnet clutch operate?
YES >>  WITH CONSULT-III
GO TO 6.
 WITHOUT CONSULT-III
GO TO 7.
NO >> GO TO 3.
3.CHECK POWER SUPPLY FOR MAGNET CLUTCH
1. Turn ignition switch OFF.
2. Disconnect compressor connector F3.
3. Start the engine.
4. Press AUTO switch and A/C switch ON.
5. Check voltage between compressor harness connector F3 ter-
minal 1 and ground.
AWIIA0304GB
Te r m i n a l s
Voltag e
(Approx.) (+) (−)
Connector Terminal
Ground
Compressor: F3 1 12V
SJIA0743E