Nissan Murano Z51. Manual - part 848

 

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Nissan Murano Z51. Manual - part 848

 

 

B257B, B257C AMBIENT SENSOR

HAC-47

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Is the inspection result normal?

YES

>> Replace A/C auto amp.

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000005514605

1.

CHECK AMBIENT SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect ambient sensor connector. Refer to 

VTL-26, "Exploded View"

.

3.

Check resistance between ambient sensor terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ambient sensor.

Ambient sensor

Continuity

Connector

Terminal

E337

1

Ground

Not existed

Terminal

Condition

Resistance k

Temperature 

°

C (

°

F)

1

2

15 (5)

12.73

10 (14)

9.92

5 (23)

7.80

0 (32)

6.19

5 (41)

4.95

10 (50)

3.99

15 (59)

3.24

20 (68)

2.65

25 (77)

2.19

30 (86)

1.81

35 (95)

1.51

40 (104)

1.27

45 (113)

1.07

HAC-48

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

B2578, B2579 IN-VEHICLE SENSOR

B2578, B2579 IN-VEHICLE SENSOR

Description

INFOID:0000000005514606

In-vehicle Sensor
• The in-vehicle sensor (1) is located on instrument driver lower

panel (2). 

• It converts variations in compartment air temperature drawn from

the aspirator into a resistance value. It is then input into the A/C
auto amp.

In-vehicle Sensor Circuit

Aspirator
The aspirator (1) is located on driver side of heater & cooling unit
assembly. It produces vacuum pressure due to air discharged from
the heater & cooling unit assembly, continuously taking compartment
air in the aspirator.

DTC Logic

INFOID:0000000005514607

DTC DETECTION LOGIC

JPIIA0557ZZ

JPIIA0613GB

JPIIA0517ZZ

RJIA1804E

B2578, B2579 IN-VEHICLE SENSOR

HAC-49

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

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

HAC-

43, "DTC Logic"

 or 

HAC-44, "DTC Logic"

DTC CONFIRMATION PROCEDURE

1.

CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III

1.

Using CONSULT-III, 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-

43, "DTC Logic"

 or 

HAC-44, "DTC Logic"

Is DTC No.“B2578” or “B2579” displayed?

YES

>> Perform trouble diagnosis for the in-vehicle sensor. Refer to 

HAC-49, "Diagnosis Procedure"

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005514608

1.

CHECK VOLTAGE BETWEEN IN-VEHICLE SENSOR AND GROUND

1.

Disconnect in-vehicle sensor connector.

2.

Turn ignition switch ON.

3.

Check voltage between in-vehicle sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK CIRCUIT CONTINUITY BETWEEN IN-VEHICLE SENSOR AND A/C AUTO AMP.

1.

Turn ignition switch OFF.

2.

Disconnect A/C auto amp. connector.

3.

Check continuity between in-vehicle sensor harness connector and A/C auto amp. harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK IN-VEHICLE SENSOR

Check in-vehicle sensor. Refer to 

HAC-50, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace A/C auto amp.

DTC

Items

 (CONSULT-III screen terms)

Diagnostic item is detected when...

Possible cause

B2578

IN CAR SEN SHORT

Detected temperature at in-vehicle 
sensor 

44

°

C (

47

°

F) or less

• In-vehicle sensor
• A/C auto amp.
• Harness and connector

(In-vehicle sensor circuit is open, 
or there is a short in the circuit)

B2579

IN CAR SEN OPEN

Detected temperature at in-vehicle 
sensor 100

°

C (212

°

F) or more

(+)

(

)

Voltage

In-vehicle sensor

Connector

Terminal

M41

1

Ground

Approx. 5 V

In-vehicle sensor

 A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M41

2

M50

37

Existed

HAC-50

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

B2578, B2579 IN-VEHICLE SENSOR

NO

>> Replace in-vehicle sensor.

4.

CHECK CIRCUIT CONTINUITY BETWEEN IN-VEHICLE SENSOR AND A/C AUTO AMP.

1.

Turn ignition switch OFF.

2.

Disconnect A/C auto amp. connector.

3.

Check continuity between in-vehicle sensor harness connector and A/C auto amp. harness connector.

4.

Check continuity between in-vehicle sensor harness connector and ground.

Is the inspection result normal?

YES

>> Replace A/C auto amp.

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000005514609

1.

CHECK IN-VEHICLE SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect in-vehicle sensor connector. Refer to 

VTL-27, "Exploded View"

.

3.

Check resistance between in-vehicle sensor terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace in-vehicle sensor.

In-vehicle sensor

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M41

1

M50

36

Existed

In-vehicle sensor

Continuity

Connector

Terminal

M41

1

Ground

Not existed

Terminal

Condition

Resistance k

Temperature 

°

C (

°

F)

1

2

15 (5)

12.73

10 (14)

9.92

5 (23)

7.80

0 (32)

6.19

5 (41)

4.95

10 (50)

3.99

15 (59)

3.24

20 (68)

2.65

25 (77)

2.19

30 (86)

1.81

35 (95)

1.51

40 (104)

1.27

45 (113)

1.07

 

 

 

 

 

 

 

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