2014 NISSAN TEANA sensor

B2578, B2579 IN-VEHICLE SENSORHAC-57
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
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B2578, B2579 IN-VEHICLE SENSOR
DTC LogicINFOID:0000000009463127
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first per form the trouble diagnosis for DTC U1000. Refer to HAC-
55, "DTC Logic".
• If DTC is displayed along with DTC U1010, first per form the trouble diagnosis for DTC U1010. Refer to HAC-
56, "DTC Logic".
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 HAC-57, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463128
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
1.CHECK IN-VEHICLE SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect in-vehicle sensor connector.
3. Turn ignition switch ON.
4. 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 IN-VEHICLE SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between front in-vehicle sensor harness connector and ground.
DTC Items
(CONSULT screen terms) DTC detection condition Possible cause
B2578 IN-VEHICLE SENSOR The in-vehicle sensor recognition temperature
is too high. • In-vehicle sensor
• A/C auto amp.
• Harness or connectors (The sensor circuit is open or short-
ed.)
B2579
The in-vehicle sensor recognition temperature
is too low.
+
−Vol tag e
(Approx.)
In-vehicle sensor
Connector Terminal M34 1 Ground 5 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-58
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
B2578, B2579 IN-VEHICLE SENSOR
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-58, "Component Inspection"
.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Replace in-vehicle sensor. Refer to HAC-104, "Removal and Installation"
.
4.CHECK IN-VEHCILE SENSOR POWER SUPPLY CIRCUIT FOR OPEN
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 5.
NO >> Repair harness or connector.
5.CHECK IN-VEHICLE SENSOR POWER SUPPLY CIRCUIT FOR GROUND SHORT
Check continuity between in-vehicle sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair harness or connector.
6.CHECK IN-VEHICLE SENSOR POWER SUPPLY CIRCUIT FOR POWER SHORT
1. Turn ignition switch ON.
2. Check voltage between in-vehicle sensor harness connector and ground.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Repair harness or connector.
Component InspectionINFOID:0000000009463129
1.CHECK IN-VEHICLE SENSOR
1. Turn ignition switch OFF.
2. Disconnect in-vehicle sensor connector.
In-vehicle sensor —Continuity
Connector Terminal
M34 2 Ground Yes
In-vehicle sensor A/C auto amp. Continuity
Connector Terminal Connector Terminal
M34 1 M152 27 Yes
In-vehicle sensor —Continuity
Connector Terminal
M34 1 Ground No
+ −Voltage
(Approx.)
In-vehicle sensor
Connector Terminal M34 1 Ground 0 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B2578, B2579 IN-VEHICLE SENSORHAC-59
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
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3. Check resistance between in-vehicle sensor terminals.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace in-vehicle sensor. Refer to HAC-104, "Removal and Installation"
.
Te r m i n a lCondition
Resistance: kΩ
Temperature: °C ( °F)
12
− 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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-60
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
B257B, B257C AMBIENT SENSOR
B257B, B257C AMBIENT SENSOR
DTC LogicINFOID:0000000009463130
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to HAC-
55, "DTC Logic".
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to HAC-
56, "DTC Logic".
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 HAC-60, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463131
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
1.CHECK AMBIENT SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect ambient sensor connector.
3. Turn ignition switch ON.
4. Check voltage between ambient sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK AMBIENT SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between ambient sensor harness connector and ground.
DTCItems
(CONSULT screen terms) DTC detection condition Possible cause
B257B AMBIENT SENSOR The ambient sensor recognition temperature is
too high. • Ambient sensor
• A/C auto amp.
• Harness or connectors (The sensor circuit is open or short-
ed.)
B257C
The ambient sensor recognition temperature is
too low.
+
−Voltage
(Approx.)
Ambient sensor
Connector Terminal E211 1 Ground 5 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B257B, B257C AMBIENT SENSORHAC-61
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
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Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK AMBIENT SENSOR
Check ambient sensor. Refer to HAC-61, "Component Inspection"
.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Replace ambient sensor. Refer to HAC-103, "Removal and Installation"
.
4.CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp.connector.
3. Check continuity between ambient sensor har ness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair harness or connector.
5.CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR GROUND SHORT
Check continuity between ambient sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair harness or connector.
6.CHECK AMBIENT SENSOR POWER SU PPLY CIRCUIT FOR POWER SHORT
1. Turn ignition switch ON.
2. Check voltage between ambient sensor harness connector and ground.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Repair harness or connector.
Component InspectionINFOID:0000000009463132
1.CHECK AMBIENT SENSOR
1. Turn ignition switch OFF.
2. Disconnect ambient sensor connector.
Ambient sensor —Continuity
Connector Terminal
E211 2 Ground Yes
Ambient sensor A/C auto amp. Continuity
Connector Terminal Connector Terminal
E211 1M1527 Yes
Ambient sensor —Continuity
Connector Terminal
E211 1 Ground No
+ −Vol tag e
(Approx.)
Ambient sensor
Connector Terminal E211 1 Ground 0 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-62
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
B257B, B257C AMBIENT SENSOR
3. Check resistance between ambient sensor terminals.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace ambient sensor. Refer to HAC-103, "Removal and Installation"
.
Te r m i n a lCondition
Resistance: kΩ
Temperature: °C ( °F)
12
− 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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B2581, B2582 INTAKE SENSORHAC-63
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
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B2581, B2582 INTAKE SENSOR
DTC LogicINFOID:0000000009463133
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first per form the trouble diagnosis for DTC U1000. Refer to HAC-
55, "DTC Logic".
• If DTC is displayed along with DTC U1010, first per form the trouble diagnosis for DTC U1010. Refer to HAC-
56, "DTC Logic".
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 HAC-63, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463134
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
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.
+
−Vol tag e
(Approx.)
Intake sensor
Connector Terminal M69 1 Ground 5 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-64
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
B2581, B2582 IN
TAKE 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-64, "Component Inspection"
.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Replace intake sensor. Refer to HAC-106, "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 har ness 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-102, "Removal and Installation".
NO >> Repair harness or connector.
Component InspectionINFOID:0000000009463135
1.CHECK INTAKE SENSOR
1. Turn ignition switch OFF.
2. Disconnect intake sensor connector.
Intake sensor —Continuity
Connector Terminal
M69 2 Ground Yes
Intake sensor A/C auto amp. Continuity
Connector Terminal Connector Terminal
M69 1 M152 28 Yes
Intake sensor —Continuity
Connector Terminal
M69 1 Ground No
+ −Voltage
(Approx.)
Intake sensor
Connector Terminal M69 1 Ground 0 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM