NISSAN TEANA 2014 Service Manual

HAC-72
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
B2634, B2635 AIR MIX DOOR
MOTOR (PASSENGER SIDE)
Is the inspection result normal?
YES >> Replace air mix door motor RH. Refer to HAC-109, "AIR MIX DOOR MOTOR : Removal and
Installation - Air Mix Door Motor (RH)".
NO >> Repair or replace malfunctioning part.
3.CHECK AIR MIX DOOR MOTOR RH COMMUNICATION SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect air mix door motor RH and A/C auto amp. connector.
3. Check continuity between air mix door motor RH harness connector and A/C auto amp. harness connec- tor.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Repair harness or connector.
Air mix door motor RH A/C auto amp. Continuity
Connector Terminal Connector Terminal
M129 3 M152 16 Yes
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]
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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

HAC-74
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
B2636, B2637, B2638,
B2639, B2654, B2655 MODE DOOR MOTOR
NO >> GO TO 3.
2.CHECK INSTALLATION OF MODE DOOR MOTOR
Check mode door motor is properly installed. Refer to HAC-108, "Exploded View"
.
Is the inspection result normal?
YES >> Replace mode door motor. Refer to HAC-109, "MODE DOOR MOTOR : Removal and Installa-
tion".
NO >> Repair or replace malfunctioning part.
3.CHECK MODE DOOR MOTOR COMMUNICATION SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect mode door motor and A/C auto amp. connector.
3. Check continuity between mode door motor har ness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Repair harness or connector.
Mode door motor A/C auto amp. Continuity
Connector Terminal Connector Terminal
M127 3 M152 16 Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B263D, B263E, B263F INTAKE DOOR MOTOR
HAC-75
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
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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-76
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
B263D, B263E, B263F INTAKE DOOR MOTOR
YES >> Replace intake door motor. Refer to
HAC-109, "INTAKE DOOR MOTOR : Removal and Installa-
tion".
NO >> Repair or replace malfunctioning part.
3.CHECK INTAKE DOOR MOTOR CO MMUNICATION SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake door motor and A/C auto amp. connector.
3. Check continuity between intake door motor har ness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Repair harness or connector.
Intake door motor A/C auto amp. Continuity
Connector Terminal Connector Terminal
M126 3 M152 16 Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

B27B0 A/C AUTO AMP.HAC-77
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
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B27B0 A/C AUTO AMP.
DTC LogicINFOID:0000000009463147
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-77, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463148
1.PERFORM SELF DIAGNOSTIC
With CONSULT
1. Turn ignition switch ON.
2. Select “Self Diagnostic Result” mode of “HVAC” using CONSULT.
3. Touch “ERASE”.
4. Turn ignition switch OFF.
5. Turn ignition switch ON.
6. Perform “DTC CONFIRMATION PROCEDURE”. Refer to HAC-77, "DTC Logic"
.
Is DTC detected again?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Inspection End.
DTC Items
(CONSULT screen terms) DTC detection condition Possible cause
B27B0 A/C AUTO AMP. A/C auto amp. EEPROM
system is mal-
functioning. A/C auto amp.
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

POWER SUPPLY AND GROUND CIRCUITHAC-79
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
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1.CHECK AIR MIX DOOR MOTOR LH POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between air mix door motor LH harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK AIR MIX DOOR MOTOR LH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect air mix door motor LH connector.
3. Check continuity between air mix door motor LH harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK INSTALLATION OF AIR MIX DOOR MOTOR LH
Check air mix door motor LH is properly installed. Refer to HAC-108, "Exploded View"
.
Is the inspection result normal?
YES >> Replace air mix door motor LH. Refer to HAC-109, "AIR MIX DOOR MOTOR : Removal and
Installation - Air Mix Door Motor (LH)".
NO >> Repair or replace malfunctioning part.
4.CHECK AIR MIX DOOR MOTOR LH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect air mix door motor LH connector and A/C auto amp. connector.
3. Check continuity between air mix door motor LH harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Repair harness or connector.
AIR MIX DOOR MOTOR (PASSENGER SIDE)
AIR MIX DOOR MOTOR (PASSENGER SIDE) : Diagnosis ProcedureINFOID:0000000009463151
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
1.CHECK AIR MIX DOOR MOTOR RH POWER SUPPLY
1. Turn ignition switch ON.
+
−Vol tag e
(Approx.)
Air mix door motor LH
Connector Terminal M128 1 Ground Battery voltage
Air mix door motor LH —Continuity
Connector Terminal
M128 2 Ground Yes
Air mix door motor LH A/C auto amp. Continuity
Connector Terminal Connector Terminal
M128 1 M152 17 Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-80
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
POWER SUPPLY AND GROUND CIRCUIT
2. Check voltage between air mix door motor RH harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK AIR MIX DOOR MOTOR RH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect air mix door motor RH connector.
3. Check continuity between air mix door motor RH harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK INSTALLATION OF AIR MIX DOOR MOTOR RH
Check air mix door motor RH is properly installed. Refer to HAC-108, "Exploded View"
.
Is the inspection result normal?
YES >> Replace air mix door motor RH. Refer to HAC-109, "AIR MIX DOOR MOTOR : Removal and
Installation - Air Mix Door Motor (RH)".
NO >> Repair or replace malfunctioning part.
4.CHECK AIR MIX DOOR MOTOR RH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect air mix door motor RH connector and A/C auto amp. connector.
3. Check continuity between air mix door motor RH harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Repair harness or connector.
MODE DOOR MOTOR
MODE DOOR MOTOR : Diagnosis ProcedureINFOID:0000000009463152
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
1.CHECK MODE DOOR MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between mode door motor harness connector and ground.
+
−Voltage
(Approx.)
Air mix door motor RH
Connector Terminal M129 1 Ground Battery voltage
Air mix door motor RH —Continuity
Connector Terminal
M129 2 Ground Yes
Air mix door motor RH A/C auto amp. Continuity
Connector Terminal Connector Terminal
M129 1 M152 17 Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

POWER SUPPLY AND GROUND CIRCUITHAC-81
< DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
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Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK MODE DOOR MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect mode door motor connector.
3. Check continuity between mode door motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK INSTALLATION OF MODE DOOR MOTOR CONTROL LINKAGE
Check mode door motor control linkage is properly installed. Refer to HAC-108, "Exploded View"
.
Is the inspection result normal?
YES >> Replace mode door motor. Refer to HAC-109, "MODE DOOR MOTOR : Removal and Installa-
tion".
NO >> Repair or replace malfunctioning part.
4.CHECK MODE DOOR MOTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect mode door motor connector and A/C auto amp. connector.
3. Check continuity between mode door motor harne ss connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES >> Replace A/C auto amp. Refer to HAC-102, "Removal and Installation".
NO >> Repair harness or connector.
INTAKE DOOR MOTOR
INTAKE DOOR MOTOR : Diagnosis ProcedureINFOID:0000000009463153
Regarding Wiring Diagram information, refer to HAC-34, "Wiring Diagram".
1.CHECK INTAKE MODE DOOR MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between intake mode door motor harness connector and ground.
+
−Vol tag e
(Approx.)
Mode door motor
Connector Terminal M127 1 Ground Battery voltage
Mode door motor —Continuity
Connector Terminal
M127 2 Ground Yes
Mode door motor A/C auto amp. Continuity
Connector Terminal Connector Terminal
M127 1 M152 17 Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM