HAC-34 NISSAN TEANA 2014 Service Manual

HAC-34
< WIRING DIAGRAM >[AUTOMATIC AIR CONDITIONER]
AIR CONDITIONER CONTROL
WIRING DIAGRAM
AIR CONDITIONER CONTROL
Wiring DiagramINFOID:0000000009463108
ABIWA0337GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B2578, B2579 IN-VEHICLE SENSORHAC-57
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D E
F
G H
J
K L
M A
B
HAC
N
O P
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-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

B2581, B2582 INTAKE SENSORHAC-63
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D E
F
G H
J
K L
M A
B
HAC
N
O P
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-66
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
B2630, B2631 SUNLOAD SENSOR
B2630, B2631 SUNLOAD SENSOR
DTC LogicINFOID:0000000009463136
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to HAC-
55, "DTC Logic" or HAC-56, "DTC Logic".
• 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-
55, "DTC Logic" or HAC-56, "DTC Logic".
• 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-66, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463137
Regarding Wiring Diagram information, refer to HAC-34, "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 M56 terminal 1 and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK CONTINUITY BETWEEN SUNL OAD 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/m2·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/m2·h)
+
−Voltage
(Approx.)
Sunload sensor
Connector Terminal M56 1 Ground 5 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
HAC-69
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D E
F
G H
J
K L
M A
B
HAC
N
O P
B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE)
DTC LogicINFOID:0000000009463139
DTC DETECTION 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-69, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463140
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
1.CHECK AIR MIX DOOR MOTOR LH COMMUNICATION SIGNAL
1. Turn ignition switch ON.
2. Check output waveform between air mix door moto r LH harness connector and ground with the oscillo-
scope.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK INSTALLATION OF AIR MIX DOOR MOTOR LH
Check air mix door motor LH is properly installed. Refer to HAC-108, "Exploded View"
.
DTCItems
(CONSULT screen terms) DTC detection condition Possible cause
B2632
DR AIR MIX DOOR MOT Air mix door motor LH PBR position
95% or more • Air mix door motor LH
(PBR internal circuit is open or short-
ed)
• Air mix door motor LH installation con-
dition
• A/C auto amp.
• Harness and connector
(LIN communication line is open or
shorted)
B2633
Air mix door motor LH PBR position 5%
or less
+
−Output waveform
Air mix door motor LH
Connector Terminal
M128 3 Ground
SJIA1453J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
HAC-71
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D E
F
G H
J
K L
M A
B
HAC
N
O P
B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE)
DTC LogicINFOID:0000000009463141
DTC DETECTION 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-71, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463142
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
1.CHECK AIR MIX DOOR MOTOR RH COMMUNICATION SIGNAL
1. Turn ignition switch ON.
2. Check output waveform between front air mi x door motor RH harness connector and ground with the
oscilloscope.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK INSTALLATION OF AIR MIX DOOR MOTOR RH
Check air mix door motor RH is properly installed. Refer to HAC-108, "Exploded View"
.
DTCItems
(CONSULT screen terms) DTC detection condition Possible cause
B2634
PASS AIR MIX DOOR MOT Air mix door motor RH PBR position
95% or more • Air mix door motor RH
(PBR internal circuit is open or short-
ed)
• Air mix door motor RH installation con-
dition
• A/C auto amp.
• Harness and connector
(LIN communication line is open or
shorted)
B2635
Air mix door motor RH PBR position
5% or less
+
−Output waveform
Air mix door motor RH
Connector Terminal
M129 3 Ground
SJIA1453J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR
HAC-73
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D E
F
G H
J
K L
M A
B
HAC
N
O P
B2636, B2637, B2638, B2639, B 2654, B2655 MODE DOOR MOTOR
DTC LogicINFOID:0000000009463143
DTC DETECTION 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-73, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463144
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
1.CHECK MODE DOOR MOTOR COMMUNICATION SIGNAL
1. Turn ignition switch ON.
2. Check output waveform between mode door motor harness connector and ground with the oscilloscope.
Is the inspection result normal?
YES >> GO TO 2.
DTC Items
(CONSULT screen terms) DTC detection condition Possible cause
B2636 DR VENT DOOR FAIL When the malfunctioning door position
is detected at VENT position
• Mode door motor(PBR internal circuit is open or short-
ed)
• Mode door motor control linkage in- stallation condition
• A/C auto amp.
• Harness and connector (LIN communication line is open or
shorted)
B2637 DR B/L DOOR FAIL
When the malfunctioning door position
is detected at B/L position
B2638 DR D/F1 DOOR FAIL When the malfunctioning door position
is detected at FOOT position
B2639 DR DEF DOOR FAIL When the malfunctioning door position
is detected at DEF position
B2654 D/F2 VENT DOOR FAIL When the malfunctioning door position
is detected at D/F position
B2655 B/L DOOR FAIL When the malfunctioning door position
is detected at B/L position
+
−Output waveform
Mode door motor
Connector Terminal
M127 3 Ground
SJIA1453J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B263D, B263E, B263F INTAKE DOOR MOTOR
HAC-75
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D E
F
G H
J
K L
M A
B
HAC
N
O P
B263D, B263E, B263F INTAKE DOOR MOTOR
DTC LogicINFOID:0000000009463145
DTC DETECTION 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-75, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463146
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
1.CHECK INTAKE DOOR MOTOR COMMUNICATION SIGNAL
1. Turn ignition switch ON.
2. Check output waveform between intake door motor harness connector and ground with the oscilloscope.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK INSTALLATION OF INTAKE DOOR MOTOR
Check intake door motor is properly installed. Refer to HAC-108, "Exploded View"
.
Is the inspection result normal?
DTC Items
(CONSULT screen terms) DTC detection condition Possible cause
B263D FRE DOOR FAIL When the malfunctioning intake door
position is detected at FRE position • Intake door motor
(PBR internal circuit is open or short-
ed)
• A/C auto amp.
• Harness and connector
(LIN communication line is open or
shorted)
B263E 20P FRE DOOR FAIL
When the malfunctioning intake door
position is detected at 20% FRE posi-
tion
B263F REC DOOR FAIL When the malfunctioning intake door
position is detected at REC position
+
−Output waveform
Intake door motor
Connector Terminal
M126 3 Ground
SJIA1453J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-78
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
A/C AUTO AMP.
A/C AUTO AMP. : Diagnosis ProcedureINFOID:0000000009463149
Regarding Wiring Diagram information, refer to
HAC-34, "Wiring Diagram".
1.CHECK FUSE
Check fuses [No. 14, 25 and 30, loca ted in the fuse block (J/B)].
NOTE:
Refer to PG-70, "Terminal Arrangement"
.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the blown fuse after repairing the affected circuit.
2.CHECK A/C AUTO AMP. POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check voltage between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector between A/C auto amp. and fuse block (J/B).
3.CHECK A/C AUTO AMP. GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair harness or connector.
AIR MIX DOOR MOTOR (DRIVER SIDE)
AIR MIX DOOR MOTOR (DRIVE R SIDE) : Diagnosis ProcedureINFOID:0000000009463150
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
+
− Vo l ta g e
A/C auto amp. Ignition switch position
Connector Terminal OFF ACC ON
M152 3
GroundBattery voltage Battery voltage Battery voltage
13 Approx. 0 V Battery voltage Battery voltage
23 Approx. 0 V Approx. 0 V Battery voltage
40 Approx. 0 V Approx. 0 V Battery voltage
A/C auto amp. —Continuity
Connector Terminal
M152 2
Ground Yes
22
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM