Nissan Pathfinder. Manual — part 707
B2581, B2582 INTAKE SENSOR
HAC-89
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
B2581, B2582 INTAKE SENSOR
DTC Logic
INFOID:0000000009176827
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.
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn ignition switch ON.
2. Using CONSULT, perform “SELF-DIAGNOSIS RESULTS” of HVAC.
3. Check if any DTC No. is displayed in the self-diagnosis results.
Is DTC detected?
YES
>> Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009176828
Regarding Wiring Diagram information, refer to
1.
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 2.
NO
>> GO TO 4.
2.
CHECK INTAKE SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between intake sensor harness connector and ground.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B2581
INTAKE SENSOR
The intake sensor recognition temperature is
too high.
• Intake sensor
• A/C auto amp.
• Harness or connectors
(The sensor circuit is open or short-
ed.)
B2582
The intake sensor recognition temperature is
too low.
+
−
Voltage
(Approx.)
Intake sensor
Connector
Terminal
M103
1
Ground
5 V
HAC-90
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2581, B2582 INTAKE SENSOR
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK INTAKE SENSOR
Check intake sensor. Refer to
HAC-90, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-157, "Removal and Installation"
.
NO
>> Replace intake sensor. Refer to
HAC-161, "Removal and Installation"
4.
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 5.
NO
>> Repair harness or connector.
5.
CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR GROUND SHORT
Check continuity between intake sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair harness or connector.
6.
CHECK INTAKE SENSOR POWER SUPPLY CIRCUIT FOR POWER SHORT
1. Turn ignition switch ON.
2. Check voltage between intake sensor harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-157, "Removal and Installation"
.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000009176829
1.
CHECK INTAKE SENSOR
1. Turn ignition switch OFF.
2. Disconnect intake sensor connector.
Intake sensor
—
Continuity
Connector
Terminal
M103
2
Ground
Yes
Intake sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M103
1
M50
28
Yes
Intake sensor
—
Continuity
Connector
Terminal
M103
1
Ground
No
+
−
Voltage
(Approx.)
Intake sensor
Connector
Terminal
M103
1
Ground
0 V
B2581, B2582 INTAKE SENSOR
HAC-91
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
3. Check resistance between intake sensor terminals.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace intake sensor. Refer to
HAC-161, "Removal and Installation"
Terminal
Condition
Resistance: k
Ω
Temperature:
°C (°F)
1
2
−15 (5)
17.73
−10 (14)
13.46
−5 (23)
10.33
0 (32)
8.00
5 (41)
6.25
10 (50)
4.93
15 (59)
3.92
20 (68)
3.14
25 (77)
2.54
30 (86)
2.06
35 (95)
1.69
40 (104)
1.39
45 (113)
1.15
HAC-92
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B2630, B2631 SUNLOAD SENSOR
B2630, B2631 SUNLOAD SENSOR
DTC Logic
INFOID:0000000009176830
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to
.
• Sunload sensor may register a malfunction when indoors, at dusk, or at other times when light is insufficient.
When performing the diagnosis indoors, light the sunload sensor with a lamp (60W or more).
DTC CONFIRMATION PROCEDURE
1.
CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT
1. Using CONSULT, perform “SELF-DIAGNOSIS RESULTS” of HVAC.
2. Check if any DTC No. is displayed in the self-diagnosis results.
NOTE:
• If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to
.
• Sunload sensor may register a malfunction when indoors, at dusk, or at other times when light is insufficient.
When performing the diagnosis indoors, light the sunload sensor with a lamp (60W or more).
Is DTC No.“B2630” or “B2631” displayed?
YES
>> Perform trouble diagnosis for the sunload sensor. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009176831
Regarding Wiring Diagram information, refer to
1.
CHECK SUNLOAD SENSOR POWER SUPPLY
1. Disconnect sunload sensor connector.
2. Turn ignition switch ON.
3. Check voltage between sunload sensor harness connector M101 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK CONTINUITY BETWEEN SUNLOAD SENSOR AND A/C AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
DTC
Items
(CONSULT screen terms)
Diagnostic item is detected when...
Possible cause
B2630
SUNLOAD SEN (SHORT)
Detected calorie at sunload sensor 1395 w/m
2
(1200 kcal/m
2
·h) or more
• Sunload sensor
• A/C auto amp.
• Harness and connector
(Sunload sensor circuit is open, or
there is a short in the circuit)
B2631
SUNLOAD SEN (OPEN)
Detected calorie at sunload sensor 0 w/m
2
(0 kcal/m
2
·h)
+
−
Voltage
(Approx.)
Sunload sensor
Connector
Terminal
M101
1
Ground
5 V
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