Nissan Quest E52. Instruction — part 742
HAC-98
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
INTAKE SENSOR
INTAKE SENSOR
Diagnosis Procedure
INFOID:0000000009652555
1.
CHECK INTAKE SENSOR SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 2.
2.
CHECK INTAKE SENSOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect intake sensor connector.
3.
Turn ignition switch ON.
4.
Check voltage between intake sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 5.
3.
CHECK INTAKE SENSOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between intake sensor harness connector and A/C auto amp harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK INTAKE SENSOR
Check intake sensor. Refer to
HAC-99, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Replace intake sensor. Refer to
HAC-148, "Removal and Installation"
+
−
Voltage
A/C auto amp.
Connector
Terminal
M50
37
Ground
JMIIA1786ZZ
+
−
Voltage
(Approx.)
Intake sensor
Connector
Terminal
M42
1
Ground
5 V
Intake sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M42
2
M50
40
Existed
INTAKE SENSOR
HAC-99
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
5.
CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between intake sensor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between intake sensor harness connector and ground.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Repair harness or connector.
7.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Repair or replace malfunctioning parts.
Component Inspection
INFOID:0000000009652556
1.
CHECK INTAKE SENSOR
1.
Remove intake sensor. Refer to
HAC-148, "Removal and Installation"
.
2.
Check resistance between intake sensor terminals. Refer to applicable table for the normal value.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace intake sensor. Refer to
HAC-148, "Removal and Installation"
Intake sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M42
1
M50
37
Existed
Intake sensor
—
Continuity
Connector
Terminal
M42
1
Ground
Not existed
Terminal
Condition
Resistance: k
Ω
Temperature:
°
C (
°
F)
1
2
−
20 (
−
4)
24.81
−
10 (14)
14.15
0 (32)
8.41
10 (50)
5.19
20 (68)
3.30
25 (77)
2.67
30 (86)
2.17
40 (104)
1.46
HAC-100
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
SUNLOAD SENSOR
SUNLOAD SENSOR
Diagnosis Procedure
INFOID:0000000009652557
1.
CHECK SUNLOAD SENSOR SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between A/C auto amp. harness connector and ground.
NOTE:
• When checking indoors, use a lamp of approximately 60 W. Move the lamp towards and away from the
sensor to check.
• The sunload amount produced by direct sunshine in fair weather is equivalent to approximately 0.77 W/
m
2
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 2.
2.
CHECK SUNLOAD SENSOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect sunload sensor connector.
3.
Turn ignition switch ON.
4.
Check voltage between sunload sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 5.
3.
CHECK SUNLOAD SENSOR GROUND CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between sunload sensor harness connector and A/C auto amp harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
+
−
Voltage
A/C auto amp.
Connector
Terminal
M50
18
Ground
JMIIA1755ZZ
+
−
Voltage
(Approx.)
Sunload sensor
Connector
Terminal
M74
1
Ground
5 V
Sunload sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M74
2
M50
40
Existed
SUNLOAD SENSOR
HAC-101
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
4.
REPLACE SUNLOAD SENSOR
1.
Replace sunload sensor. Refer to
HAC-147, "Removal and Installation"
2.
Perform self-diagnosis function step 2. Refer to
HAC-47, "On Board Diagnosis Function"
.
3.
Check self-diagnosis result.
Is “25” or “
25” displayed?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> INSPECTION END
5.
CHECK SUNLOAD SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between sunload sensor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK SUNLOAD SENSOR POWER SUPPLY CIRCUIT FOR SHORT
Check continuity between sunload sensor harness connector and ground.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Repair harness or connector.
7.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace front A/C control (A/C auto amp.). Refer to
HAC-143, "Removal and Installation"
NO
>> Repair or replace malfunctioning parts.
Sunload sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M74
1
M50
18
Existed
Sunload sensor
—
Continuity
Connector
Terminal
M74
1
Ground
Not existed
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