Nissan Sentra. Manual - part 555

HAC-68

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

B2581, B2582 INTAKE SENSOR

3. Check resistance between intake sensor terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace intake sensor. Refer to 

HAC-109, "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

B2630, B2631 SUNLOAD SENSOR

HAC-69

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

B2630, B2631 SUNLOAD SENSOR

DTC Logic

INFOID:0000000009757663

DTC DETECTION LOGIC

NOTE:

• If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to 

HAC-

58, "DTC Logic"

 (U1000) or 

HAC-59, "DTC Logic"

 (U1010). 

• 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 

HAC-

58, "DTC Logic"

 (U1000) or 

HAC-59, "DTC Logic"

 (U1010). 

• 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 

HAC-69, "Diagnosis Procedure"

. 

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009757664

Regarding Wiring Diagram information, refer to 

HAC-41, "Wiring Diagram"

.

1.

CHECK SUNLOAD SENSOR POWER SUPPLY

1. Disconnect sunload sensor connector.

2. Turn ignition switch ON.

3. Check voltage between sunload sensor harness connector 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.

3. Check continuity between sunload sensor harness connector and A/C auto amp. harness connector.

DTC

Items

 (CONSULT screen terms)

Diagnostic item is detected when...

Possible cause

B2630

SUNLOAD SEN (SHORT)

Detected calorie at sunload sensor 1677 w/m

2

 

(1442 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 33 w/m

2

       

(28 kcal/m

2

·h) 

+

−

Voltage

(Approx.)

Sunload sensor

Connector

Terminal

M70

1

Ground

5 V

HAC-70

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

B2630, B2631 SUNLOAD SENSOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK SUNLOAD SENSOR

1. Reconnect sunload sensor connector and A/C auto amp. connector.

2. Check sunload sensor. Refer to 

HAC-70, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-105, "Removal and Installation"

.

NO

>> Replace sunload sensor. Refer to 

HAC-108, "Removal and Installation"

.

4.

CHECK CONTINUITY BETWEEN SUNLOAD SENSOR AND A/C AUTO AMP.

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.

4. Check continuity between sunload sensor harness connector and ground.

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to 

HAC-105, "Removal and Installation"

.

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000009757665

1.

CHECK SUNLOAD SENSOR

1. Turn ignition switch ON.

2. Check voltage between A/C auto amp. harness connector and ground.

Sunload sensor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M70

2

M34

10

Yes

Sunload sensor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M70

1

M34

5

Yes

Sunload sensor

—

Continuity

Connector

Terminal

M70

1

Ground

No

(+)

(

−)

A/C auto amp.

—

Connector

Terminal

M34

5

Ground

B2630, B2631 SUNLOAD SENSOR

HAC-71

< DTC/CIRCUIT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

NOTE:

Select a place in direct sunlight when checking sunload sensor.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace sunload sensor. Refer to 

HAC-108, "Removal and Installation"

.

AWIIA1189GB