Infiniti G35 (V35) Sedan. Manual — part 782
HAC-100
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
SUNLOAD SENSOR
3.
Check voltage between sunload sensor harness connector M46 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK CIRCUIT CONTINUITY BETWEEN SUNLOAD SENSOR AND UNIFIED METER AND A/C AMP.
1.
Turn ignition switch OFF.
2.
Disconnect unified meter and A/C amp. connector.
3.
Check continuity between sunload sensor harness connector M46 terminal 2 and unified meter and A/C
amp. harness connector M67 terminal 62.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK SUNLOAD SENSOR
1.
Reconnect sunload sensor connector and unified meter and A/C amp. connector.
2.
HAC-100, "Component Inspection"
Is the inspection result normal?
YES
>> Replace unified meter and A/C amp.
NO
>> Replace sunload sensor.
4.
CHECK CIRCUIT CONTINUITY BETWEEN SUNLOAD SENSOR AND UNIFIED METER AND A/C AMP.
1.
Turn ignition switch OFF.
2.
Disconnect unified meter and A/C amp. connector.
3.
Check continuity between sunload sensor harness connector M46 terminal 1 and unified meter and A/C
amp. harness connector M67 terminal 46.
4.
Check continuity between sunload sensor harness connector M46 terminal 1 and ground.
Is the inspection result normal?
YES
>> Replace unified meter and A/C amp.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000000959963
(+)
(
−
)
Voltage
Sunload sensor
—
Connector
Terminal
M46
1
Ground
Approx. 5 V
(+)
(
−
)
Continuity
Sunload sensor
Unified meter and A/C amp.
Connector
Terminal
Connector
Terminal
M46
2
M67
62
Continuity should exist
(+)
(
−
)
Continuity
Sunload sensor
Unified meter and A/C amp.
Connector
Terminal
Connector
Terminal
M46
1
M67
46
Continuity should exist
(+)
(
−
)
Continuity
Sunload sensor
—
Connector
Terminal
M46
1
Ground
Continuity should not exist
SUNLOAD SENSOR
HAC-101
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Measure voltage between unified meter and A/C amp. harness con-
nector (2) M67 terminal 46 and ground.
• When checking sunload sensor, select a place where sunshine directly on it.
If NG, replace sunload sensor (1).
JSIIA0051ZZ
SHA930E
HAC-102
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
INTAKE SENSOR
INTAKE SENSOR
Description
INFOID:0000000000959964
Intake Sensor
The intake sensor (1) is located on the heater & cooling unit assem-
bly. It converts temperature of air after it passes through the evapo-
rator (2) into a resistance value which is then input to the unified
meter and A/C amp.
Intake Sensor Circuit
Component Function Check
INFOID:0000000000959965
1.
PERFORM SELF-DIAGNOSIS STEP-2
Perform self-diagnosis STEP-2. Refer to
HAC-44, "WITHOUT LEFT AND RIGHT VENTILATION TEMPERA-
TURE SEPARATELY CONTROL SYSTEM : Diagnosis Description"
(Without left and right ventilation tempera-
ture separately control system) or
HAC-50, "WITH LEFT AND RIGHT VENTILATION TEMPERATURE
SEPARATELY CONTROL SYSTEM : Diagnosis Description"
(With left and right ventilation temperature sepa-
rately control system), see No. 1 to 2.
24 or
−
24 is displayed.
YES
>> Go to Diagnosis Procedure. Refer to
HAC-102, "Diagnosis Procedure"
NO
>> END.
Diagnosis Procedure
INFOID:0000000000959966
1.
CHECK VOLTAGE BETWEEN INTAKE SENSOR AND GROUND
1.
Disconnect intake sensor connector.
2.
Turn ignition switch ON.
3.
Check voltage between intake sensor harness connector M77 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
JSIIA0241ZZ
RJIA4104E
(+)
(
−
)
Voltage
Intake sensor
—
Connector
Terminal
M77
1
Ground
Approx. 5 V
INTAKE SENSOR
HAC-103
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
2.
CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND UNIFIED METER AND A/C AMP.
1.
Turn ignition switch OFF.
2.
Disconnect unified meter and A/C amp. connector.
3.
Check continuity between intake sensor harness connector M77 terminal 2 and unified meter and A/C
amp. harness connector M67 terminal 59.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK INTAKE SENSOR
HAC-103, "Component Inspection"
Is the inspection result normal?
YES
>> Replace unified meter and A/C amp.
NO
>> Replace intake sensor.
4.
CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND UNIFIED METER AND A/C AMP.
1.
Turn ignition switch OFF.
2.
Disconnect unified meter and A/C amp. connector.
3.
Check continuity between intake sensor harness connector M77 terminal 1 and unified meter and A/C
amp. harness connector M67 terminal 43.
4.
Check continuity between intake sensor harness connector M77 terminal 1 and ground.
Is the inspection result normal?
YES
>> Replace unified meter and A/C amp.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000000959967
(+)
(
−
)
Continuity
Intake sensor
Unified meter and A/C amp.
Connector
Terminal
Connector
Terminal
M77
2
M67
59
Continuity should exist
(+)
(
−
)
Continuity
Intake sensor
Unified meter and A/C amp.
Connector
Terminal
Connector
Terminal
M77
1
M67
43
Continuity should exist
(+)
(
−
)
Continuity
Intake sensor
—
Connector
Terminal
M77
1
Ground
Continuity should not exist
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