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![NISSAN TIIDA 2007 Service Repair Manual HAC-124
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MAGNET CLUTCH
MAGNET CLUTCH
System DescriptionINFOID:0000000001547430
SYSTEM DESCRIPTION
Front air control controls compressor operatio NISSAN TIIDA 2007 Service Repair Manual HAC-124
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MAGNET CLUTCH
MAGNET CLUTCH
System DescriptionINFOID:0000000001547430
SYSTEM DESCRIPTION
Front air control controls compressor operatio](/manual-img/5/57395/w960_57395-3456.png)
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
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Perform a complete operational check and check for any symptoms NISSAN TIIDA 2007 Service Repair Manual MAGNET CLUTCH
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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
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![NISSAN TIIDA 2007 Service Repair Manual HAC-126
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MAGNET CLUTCH
Is the inspection result normal?
YES >> Replace A/C compressor. Refer to XX-XX, "*****".
NO >> Check 10A fuse (No. 42), l NISSAN TIIDA 2007 Service Repair Manual HAC-126
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MAGNET CLUTCH
Is the inspection result normal?
YES >> Replace A/C compressor. Refer to XX-XX, "*****".
NO >> Check 10A fuse (No. 42), l](/manual-img/5/57395/w960_57395-3458.png)
HAC-126
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MAGNET CLUTCH
Is the inspection result normal?
YES >> Replace A/C compressor. Refer to XX-XX, "*****".
NO >> Check 10A fuse (No. 42), located in the IPDM E/R.
If fuse is OK, GO TO 4.
If fuse is NG, replace fuse and check harness for short circuit. Repair or replace if necessary.
4.CHECK MAGNET CLUTCH CIRCUIT
Check for operation sound when applying battery voltage direct cur-
rent to terminal.
Is the inspection result normal?
OK >> GO TO 5.
NO >> Replace A/C compressor. Refer to XX-XX, "*****"
.
5.CHECK CIRCUIT CONTINUITY BETWEEN IPDM E/R AND COMPRESSOR
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector E43.
3. Check continuity between compressor harness connector F3 (A)
terminal 1 and IPDM E/R harness connector E43 (B) terminal
11 .
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to XX-XX, "*****".
NO >> Repair harness or connector.
6.CHECK BCM INPUT (COMPRESSOR ON) SIGNAL
Check compressor ON/OFF signal. Refer to HAC-97, "
CONSULT-III Function (BCM)".
Is the inspection result normal?
YES >> GO TO 9.
NO >> GO TO 7.
7.CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND BCM.
1. Turn ignition switch OFF.
2. Disconnect front air control harness connector M50.
3. Disconnect BCM harness connector M19.
4. Check continuity between front air control harness connector
M33 (A) terminal 13 and BCM harness connector M19 (B) termi-
nal 61.
5. Check continuity between front air control harness connector M33 (A) terminal 13 and ground.
RJIA2005E
ABContinuity
Connector Terminal Connector Terminal
Ye s
Compressor:
F31IPDM E/R:
E4311
AWIIA0305ZZ
A/C SW ON : AIR COND SW ON
A/C SW OFF : AIR COND SW OFF
AB
Continuity
Connector Terminal Connector Terminal
Front air control:
M5013 BCM: M19 61 Yes
AWIIA0565ZZ
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Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair harness or connector.
8.CH NISSAN TIIDA 2007 Service Repair Manual MAGNET CLUTCH
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Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair harness or connector.
8.CH](/manual-img/5/57395/w960_57395-3459.png)
MAGNET CLUTCH
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Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair harness or connector.
8.CHECK VOLTAGE FOR FRONT AIR CONTROL (COMPRESSOR ON SIGNAL)
1. Reconnect front air control harness connector M50 and BCM
harness connector M19.
2. Turn ignition switch ON.
3. Confirm compressor ON signal between front air control harness
connector M50 terminal 13 and ground.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace front air control. Refer to XX.
9.CHECK REFRIGERANT PRESSURE SENSOR
WITH CONSULT-III
1. Start the engine.
2. Check the voltage of refrigerant pressure sensor. Refer to XX-XX, "*****"
.
WITHOUT CONSULT-III
1. Start the engine.
2. Check voltage between ECM harness connector F11 and
ground.
Is the inspection result normal?
YES >> WITH CONSULT-III
GO TO 10.
WITHOUT CONSULT-III
GO TO 11.
NO >> Refer to XX-XX, "*****"
.
10.CHECK BCM INPUT (FAN ON) SIGNAL
Check FAN ON/OFF signal. Refer to HAC-97, "
CONSULT-III Function (BCM)".
A
GroundContinuity
Connector Terminal
Front air control:
M5013 No
Te r m i n a l s
ConditionVo l ta g e
(Approx.) (+) (-)
Connector Terminal
Ground Front air
control:
M5013A/C switch:
ON
(Blower mo-
tor oper-
ates.)
AWIIA0486ZZ
ZJIA0584J
Te r m i n a l s
ConditionVo l ta g e
(Approx.) (+)
(-)
Connector Terminal
ECM: F1141 without
dieselGroundA/C switch: ON
(Blower motor
operates.)1-4V
78 with diesel
AWIIA0562ZZ
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![NISSAN TIIDA 2007 Service Repair Manual HAC-128
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MAGNET CLUTCH
Is the inspection result normal?
YES >> GO TO 13.
NO >> GO TO 11.
11 .CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL NISSAN TIIDA 2007 Service Repair Manual HAC-128
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MAGNET CLUTCH
Is the inspection result normal?
YES >> GO TO 13.
NO >> GO TO 11.
11 .CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL](/manual-img/5/57395/w960_57395-3460.png)
HAC-128
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MAGNET CLUTCH
Is the inspection result normal?
YES >> GO TO 13.
NO >> GO TO 11.
11 .CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND BCM
1. Turn ignition switch OFF.
2. Disconnect front air control connector M50 and BCM connector
M19.
3. Check continuity between front air control harness connector
M50 (A) terminal 12 and BCM harness connector M19 (B) termi-
nal 50.
4. Check continuity between front air control harness connector M50 (A) terminal 12 and ground.
Is the inspection result normal?
YES >> GO TO 12.
NO >> Repair harness or connector.
12.CHECK VOLTAGE FOR FRONT AIR CONTROL (FAN ON SIGNAL)
1. Reconnect front air control connector M50 and BCM connector
M18.
2. Turn ignition switch ON.
3. Confirm fan ON signal between front air control harness connec-
tor M50 terminal 12 and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace front air control. Refer to XX.
NO >> Replace BCM. Refer to XX.
13.CHECK CAN COMMUNICATION
Check CAN communication. Refer to XX-XX, "*****"
.
BCM – ECMFAN SW ON : FAN ON SIG ON
FAN SW OFF : FAN ON SIG OFF
AB
Continuity
Connector Terminal Connector Terminal
Front air control:
M5012 BCM: M19 50 Yes
A
GroundContinuity
Connector Terminal
Front air control:
M5012 No
AWIIA0566ZZ
Te r m i n a l s
ConditionVo l ta g e
(Approx.) (+) (−)
Connec-
torTe r m i n a l
Ground
Front air
control:
M5012Fan speed:
1st
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MAGNET CLUTCH
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ECM – IPDM E/R
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair or replace malfunction part(s).
Page 3463 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HAC-130
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
AMBIENT SENSOR
AMBIENT SENSOR
Component DescriptionINFOID:0000000001547435
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor is a NISSAN TIIDA 2007 Service Repair Manual HAC-130
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
AMBIENT SENSOR
AMBIENT SENSOR
Component DescriptionINFOID:0000000001547435
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor is a](/manual-img/5/57395/w960_57395-3462.png)
HAC-130
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
AMBIENT SENSOR
AMBIENT SENSOR
Component DescriptionINFOID:0000000001547435
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor is attached on the radiator core support upper. It
detects ambient temperature and converts it into a resistance value
which is then input into the front air control.
AMBIENT TEMPERATURE INPUT PROCESS
The front air control includes a processing circuit for the ambient sensor input. However, when the tempera-
ture detected by the ambient sensor increases quickly, the processing circuit retards the front air control func-
tion. It only allows the front air control to recognize an ambient temperature increase of 0.33°C (0.6°F) per 100
seconds.
As an example, consider stopping for a few minutes after high speed driving. Although the actual ambient tem-
perature has not changed, the temperature detected by the ambient sensor will increase. This is because the
heat from the engine compartment can radiate to the front grille area, location of the ambient sensor.
Ambient Sensor Diagnosis ProcedureINFOID:0000000001547436
DIAGNOSTIC PROCEDURE FOR AMBIENT SENSOR
SYMPTOM: Ambient sensor circuit is open or shorted. (21 or AUTO21
is indicated on front air control As a result of performing self-diagno-
sis STEP-2.)
1.CHECK VOLTAGE BETWEEN AMBIENT SENSOR AND GROUND
1. Turn ignition switch OFF.
2. Disconnect ambient sensor connector E60.
3. Turn ignition switch ON.
4. Check voltage between ambient sensor harness connector E60
terminal 2 and ground.
Is the inspection result normal?
YES >> GO TO 2.
AWIIA0600ZZ
AWIIA0306GB
Te r m i n a l s
Vo l ta g e
(Approx.) (+) (−)
Connector Terminal
Ground
Ambient sensor:
E6025V
AWIIA0307ZZ
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2.CHECK CIRCUIT CONTINUITY BETWEEN AMBIENT SENSOR AND FRONT AIR CONTROL](/manual-img/5/57395/w960_57395-3463.png)
AMBIENT SENSOR
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NO >> GO TO 4.
2.CHECK CIRCUIT CONTINUITY BETWEEN AMBIENT SENSOR AND FRONT AIR CONTROL
1. Turn ignition switch OFF.
2. Disconnect front air control connector M60.
3. Check continuity between ambient sensor harness connector
E60 (A) terminal 1 and front air control harness connector M51
(B) terminal 33.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK AMBIENT SENSOR
Refer to HAC-131, "
Ambient Sensor Component Inspection".
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HAC-98, "
Front Air Control Self-Diagnosis" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
NO >> 1. Replace ambient sensor. Refer to XX.
2. Go to self-diagnosis HAC-98, "
Front Air Control Self-Diagnosis" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
4.CHECK CIRCUIT CONTINUITY BETWEEN AMBIENT SENSOR AND FRONT AIR CONTROL
1. Turn ignition switch OFF.
2. Disconnect front air control connector M51.
3. Check continuity between ambient sensor harness connector
E60 (A) terminal 2 and front air control harness connector M51
(B) terminal 30.
4. Check continuity between ambient sensor harness connector
E34 (A) terminal 2 and ground.
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HAC-98, "
Front Air Control Self-Diagnosis" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
NO >> Repair harness or connector.
Ambient Sensor Component InspectionINFOID:0000000001547437
COMPONENT INSPECTION
Ambient Sensor
AB
Continuity
Connector Terminal Connector Terminal
Ambient sensor:
E601Front air control:
M5133 Yes
AWIIA0308ZZ
AB
Continuity
Connector Terminal Connector Terminal
Ambient sensor:
E602Front air control:
M5130 Yes
A
GroundContinuity
Connector Terminal
Ambient sensor:
E602No
AWIIA0309ZZ