Nissan Leaf. Instruction — part 821
B2581, B2582 INTAKE SENSOR
HAC-287
< DTC/CIRCUIT DIAGNOSIS >
[AUTO A/C (WITHOUT HEAT PUMP)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
1. Turn power switch OFF.
2. Disconnect intake sensor connector.
3. Turn power 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 power 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-288, "Component Inspection"
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-347, "Removal and Installation"
.
NO
>> Replace intake sensor. Refer to
HAC-352, "Removal and Installation"
5.
CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1. Turn power 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 A/C auto amp. Refer to
HAC-352, "Removal and Installation"
.
NO
>> Repair harness or connector.
+
−
Voltage
(Approx.)
Intake sensor
Connector
Terminal
M141
1
Ground
5 V
Intake sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M141
2
M55
30
Yes
Intake sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M141
1
M55
34
Yes
Intake sensor
—
Continuity
Connector
Terminal
M141
1
Ground
No
HAC-288
< DTC/CIRCUIT DIAGNOSIS >
[AUTO A/C (WITHOUT HEAT PUMP)]
B2581, B2582 INTAKE SENSOR
7.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-347, "Removal and Installation"
.
NO
>> Repair or replace malfunctioning components.
Component Inspection
INFOID:0000000010121993
1.
CHECK INTAKE SENSOR
1. Remove intake sensor. Refer to
HAC-352, "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-352, "Removal and Installation"
Terminal
Condition
Resistance: k
Ω
Temperature:
°C (°F)
1
2
−20 (−4)
16.50
−10 (14)
9.92
0 (32)
6.19
10 (50)
3.99
20 (68)
2.65
25 (77)
2.19
30 (86)
1.81
40 (104)
1.27
B2630, B2631 SUNLOAD SENSOR
HAC-289
< DTC/CIRCUIT DIAGNOSIS >
[AUTO A/C (WITHOUT HEAT PUMP)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B2630, B2631 SUNLOAD SENSOR
DTC Logic
INFOID:0000000010121994
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
.
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010.
.
• Sunload sensor may register a malfunction when indoors, at dusk, or at other times when light is insufficient.
When performing the diagnosis indoors, use a lamp (60 W or more) that is pointed at the sunload sensor.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn power switch ON.
2. Select “Self Diagnostic Result” of “HVAC” using CONSULT.
3. Check DTC.
Is DTC detected?
YES
>> Refer to
HAC-289, "Diagnosis Procedure"
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010121995
Regarding Wiring Diagram information, refer to
1.
CHECK SUNLOAD SENSOR VOLTAGE SIGNAL
1. Turn power switch ON.
2. Operate the automatic air conditioning system.
3. Move 60 W lamp to or from the sunload sensor to check that a voltage signal between A/C auto amp. har-
ness connector terminals changes.
Is the inspection result normal?
YES
>> GO TO 7.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2630
SUNLOAD SENSOR
Detected calorie at sunload sensor 1677 W/m
2
(1442 kcal/m
2
·h) or more.
• Sunload sensor
• A/C auto amp.
• Harness or connectors
(The sensor circuit is open or short-
ed.)
B2631
Detected calorie at sunload sensor 33 W/m
2
(28
kcal/m
2
·h) or less.
A/C auto amp.
Test condition
Voltage signal
Connector
+
−
Terminal
M55
35
10
• Power switch ON
• When air conditioner is op-
erating
JSIIA1664ZZ
HAC-290
< DTC/CIRCUIT DIAGNOSIS >
[AUTO A/C (WITHOUT HEAT PUMP)]
B2630, B2631 SUNLOAD SENSOR
NO
>> GO TO 2.
2.
CHECK SUNLOAD SENSOR POWER SUPPLY
1. Turn power switch OFF.
2. Disconnect sunload sensor connector.
3. Turn power 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 power 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.
4.
REPLACE SUNLOAD SENSOR
1. Replace sunload sensor. Refer to
HAC-350, "Removal and Installation"
2. Perform DTC confirmation procedure. Refer to
3. Check DTC.
Is DTC detected?
YES
>> Replace A/C auto amp. Refer to
HAC-347, "Removal and Installation"
.
NO
>> Inspection End.
5.
CHECK SUNLOAD SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1. Turn power 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.
+
−
Voltage
(Approx.)
Sunload sensor
Connector
Terminal
M74
1
Ground
5 V
Sunload sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M74
2
M55
30
Yes
Sunload sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M74
1
M55
35
Yes
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