NISSAN TEANA 2014 Service Manual

HAC-142
< DTC/CIRCUIT DIAGNOSIS >[MANUAL AIR CONDITIONER]
MODE DOOR MOTOR
DTC/CIRCUIT DIAGNOSIS
MODE DOOR MOTOR
Diagnosis ProcedureINFOID:0000000009463211
1.CHECK MODE DOOR MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between mode door motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 5.
2.CHECK MODE DOOR MOTOR GROUND CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect mode door motor and front air control 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 MODE DOOR MOTOR LIN SIGNAL
1. Connect mode door motor and front air control connector.
2. Turn ignition switch ON.
3. Confirm output waveform between mode door motor harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 6.
4.CHECK INSTALLATION OF MODE DOOR MOTOR
Check mode door motor is properly installed. Refer to HAC-164, "Exploded View"
.
Is the inspection result normal?
+
−Vo l ta g e
(Approx.)
Mode door motor
Connector Terminal M127 1 Ground Battery voltage
Mode door motor —Continuity
Connector Terminal
M127 2 Ground Yes
+ −Output waveform
Mode door motor
Connector Terminal
M127 3 Ground
SJIA1453J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

MODE DOOR MOTORHAC-143
< DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONER]
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YES >> Replace mode door motor. Refer to HAC-165, "MODE DOOR MOTOR : Removal and Installa-
tion".
NO >> Repair or replace malfunctioning part.
5.CHECK MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect mode door motor and front air control connector.
3. Check continuity between mode door motor har ness connector and front air control connector.
Is the inspection result normal?
YES >> Replace front air control. Refer to HAC-161, "Removal and Installation".
NO >> Repair harness or connector.
6.CHECK REAR AIR MIX DOOR MOTOR LIN SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect mode door motor and front air control connector.
3. Check continuity between mode door motor harness connector and front air control harness connector.
Is the inspection result normal?
YES >> Replace front air control. Refer to HAC-161, "Removal and Installation".
NO >> Repair harness or connector.
Mode door motor Front air control Continuity
Connector Terminal Connector Terminal
M127 1 M37 13 Yes
Mode door motor Front air control Continuity
Connector Terminal Connector Terminal
M127 3 M37 12 Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-144
< DTC/CIRCUIT DIAGNOSIS >[MANUAL AIR CONDITIONER]
AIR MIX DOOR MOTOR
AIR MIX DOOR MOTOR
Diagnosis ProcedureINFOID:0000000009463212
1.CHECK AIR MIX DOOR MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between air mix door motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 5.
2.CHECK AIR MIX DOOR MOTOR GROUND CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect air mix door motor and front air control connector.
3. Check continuity between air mi x door motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK AIR MIX DOOR MOTOR LIN SIGNAL
1. Connect air mix door motor and front air control connector.
2. Turn ignition switch ON.
3. Confirm output waveform between air mix door motor harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 6.
4.CHECK INSTALLATION OF AIR MIX DOOR MOTOR
Check air mix door motor is properly installed. Refer to HAC-164, "Exploded View"
.
Is the inspection result normal?
YES >> Replace air mix door motor. Refer to HAC-165, "AIR MIX DOOR MOTOR : Removal and Installa-
tion".
NO >> Repair or replace malfunctioning part.
+
−Vo l ta g e
(Approx.)
Air mix door motor
Connector Terminal M130 1 Ground Battery voltage
Air mix door motor —Continuity
Connector Terminal
M130 2 Ground Yes
+ −Output waveform
Air mix door motor
Connector Terminal
M130 3 Ground
SJIA1453J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

AIR MIX DOOR MOTORHAC-145
< DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONER]
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5.CHECK AIR MIX DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect air mix door motor and front air control connector.
3. Check continuity between air mix door motor harness connector and front air control connector.
Is the inspection result normal?
YES >> Replace front air control. Refer to HAC-161, "Removal and Installation".
NO >> Repair harness or connector.
6.CHECK AIR MIX DOOR MOTOR LIN SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect air mix door motor and front air control connector.
3. Check continuity between air mix door motor harness connector and front air control harness connector.
Is the inspection result normal?
YES >> Replace front air control. Refer to HAC-161, "Removal and Installation".
NO >> Repair harness or connector.
Air mix door motor Front air control Continuity
Connector Terminal Connector Terminal
M130 1 M37 13 Yes
Air mix door motor Front air control Continuity
Connector Terminal Connector Terminal
M130 3 M37 12 Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-146
< DTC/CIRCUIT DIAGNOSIS >[MANUAL AIR CONDITIONER]
INTAKE DOOR MOTOR
INTAKE DOOR MOTOR
Diagnosis ProcedureINFOID:0000000009463213
1.CHECK INTAKE DOOR MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between intake door motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 5.
2.CHECK INTAKE DOOR MOTOR GROUND CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect intake door motor and front air control connector.
3. Check continuity between intake door motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK INTAKE DOOR MOTOR LIN SIGNAL
1. Connect intake door motor and front air control connector.
2. Turn ignition switch ON.
3. Confirm output waveform between intake door motor harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 6.
4.CHECK INSTALLATION OF INTAKE DOOR MOTOR
Check intake door motor is properly installed. Refer to HAC-164, "Exploded View"
.
Is the inspection result normal?
YES >> Replace intake door motor. Refer to HAC-165, "INTAKE DOOR MOTOR : Removal and Installa-
tion".
NO >> Repair or replace malfunctioning part.
+
−Vo l ta g e
(Approx.)
Intake door motor
Connector Terminal M126 1 Ground Battery voltage
Intake door motor —Continuity
Connector Terminal
M126 2 Ground Yes
+ −Output waveform
Intake door motor
Connector Terminal
M126 3 Ground
SJIA1453J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

INTAKE DOOR MOTORHAC-147
< DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONER]
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5.CHECK INTAKE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect intake door motor and front air control connector.
3. Check continuity between intake door motor harness connector and front air control connector.
Is the inspection result normal?
YES >> Replace front air control. Refer to HAC-161, "Removal and Installation".
NO >> Repair harness or connector.
6.CHECK INTAKE DOOR MOTOR LIN SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect intake door motor and front air control.
3. Check continuity between intake door motor har ness connector and front air control harness connector.
Is the inspection result normal?
YES >> Replace front air control. Refer to HAC-161, "Removal and Installation".
NO >> Repair harness or connector.
Intake door motor Front air control Continuity
Connector Terminal Connector Terminal
M126 1 M37 13 Yes
Intake door motor Front air control Continuity
Connector Terminal Connector Terminal
M126 3 M37 12 Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-148
< DTC/CIRCUIT DIAGNOSIS >[MANUAL AIR CONDITIONER]
BLOWER MOTOR
BLOWER MOTOR
Diagnosis ProcedureINFOID:0000000009463214
Regarding Wiring Diagram information, refer to
HAC-130, "Wiring Diagram".
1.CHECK FUSE
1. Turn ignition switch OFF.
2. Check 15A fuses [Nos. 17 and 27, located in 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 BLOWER MOTOR POWER SUPPLY
1. Disconnect blower motor connector.
2. Turn ignition switch ON.
3. Check voltage between blower motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 6.
3.CHECK BLOWER MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between blower motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair harness or connector.
4.CHECK BLOWER MOTOR CONTROL SIGNAL CIRCUIT
1. Disconnect front air control connector.
2. Check continuity between blower motor harness connector and front air control harness connector.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair the harness or connector.
5.CHECK BLOWER MOTOR CONTROL SIGNAL
+
−Voltage
(Approx.)
Blower motor
Connector Terminal M31 38 Ground Battery voltage
Blower motor —Continuity
Connector Terminal
M31 39 Ground Yes
Blower motor Front air control Continuity
Connector Terminal Connector Terminal
M31 17 M37 11 Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BLOWER MOTORHAC-149
< DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONER]
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1. Reconnect blower motor connector and front air control connector.
2. Turn ignition switch ON.
3. Operate MODE switch to set air outlet to VENT.
4. Change fan speed from Lo to Hi, and check duty ratios between blower motor harness connector and
ground by using an oscilloscope.
NOTE:
Calculate drive signal duty ratio as shown in the figure.
T2 = Approx. 1.6 ms
Is the inspection result normal?
YES >> Replace blower motor. Refer to VTL-13, "BLOWER MOTOR : Removal and Installation".
NO >> Replace front air control. Refer to HAC-102, "Removal and Installation"
.
6.CHECK BLOWER MOTOR RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between fuse bl ock (J/B) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair harness or connector.
7.CHECK FRONT BLOWER MOTOR RELAY
Check front blower motor relay. Refer to HAC-149, "Component Inspection (Front Blower Motor Relay)"
.
Is the inspection result normal?
YES >> Repair harness or connector between blower motor and fuse block (J/B).
NO >> Replace front blower motor relay.
Component Inspection (Blower Motor)INFOID:0000000009463215
1.CHECK BLOWER MOTOR
1. Connect battery voltage to terminal 1 of blower motor.
2. Connect ground to terminal 2 of blower motor.
Does the blower fan operate?
YES >> Intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace blower motor. Refer to VTL-13, "BLOWER MOTOR : Removal and Installation"
.
Component Inspection (Front Blower Motor Relay)INFOID:0000000009463216
1.CHECK BLOWER RELAY
1. Turn ignition switch OFF.
2. Remove front blower motor relay.
Blower motor Condition Duty ratio
(Approx.)
Connector Terminal Fan speed (manual)
VENT mode
M31 17 1st 25 %
2nd 33 % 3rd 41 %4th 51 %
5th 61 %
6th 69 %
7th 81 %
JPLIA1210GB
Fuse block (J/B) —Continuity
Connector Terminal
M4 13R Ground Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-150
< DTC/CIRCUIT DIAGNOSIS >[MANUAL AIR CONDITIONER]
BLOWER MOTOR
3. Check continuity between front blower motor relay terminals 3
and 5 when voltage is supplied between terminals 1 and 2.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace front blower motor relay.
Terminals Voltage Continuity
35 ON Yes
OFF No
JSIIA1551ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

MAGNET CLUTCHHAC-151
< DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONER]
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MAGNET CLUTCH
Component Function CheckINFOID:0000000009463217
1.CHECK MAGNET CLUTCH OPERATION
Perform auto active test of IPDM E/R. Refer to PCS-8, "Diagnosis Description"
.
Does it operate normally?
YES >> Inspection End.
NO >> Refer to HAC-151, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009463218
Regarding Wiring Diagram information, refer to HAC-130, "Wiring Diagram".
1.CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10A fuse (No. 53, located in IPDM E/R).
NOTE:
Refer to PG-72, "Fuse, Connector and Terminal Arrangement"
.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the blown fuse after repairing the affected circuit.
2.CHECK MAGNET CLUTCH POWER SUPPLY CIRCUIT
1. Disconnect compressor connec tor and IPDM E/R connector.
2. Check continuity between compressor har ness connector and IPDM E/R harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK MAGNET CLUTCH GROUND CIRCUIT
1. Disconnect compressor connector.
2. Check continuity between comp ressor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair harness or connector.
4.CHECK MAGNET CLUTCH
Directly apply battery voltage to the magnet cl utch. Check operation visually and by sound.
Does it operate normally?
YES >> Replace IPDM E/R. Refer to PCS-32, "Removal and Installation".
NO >> Replace magnet clutch. Refer to HA-31, "MAGNET CLUTCH : Removal and Installation"
.
Compressor IPDM E/R
Continuity
Connector Terminal Connector Terminal
F3 1 F83 56 Yes
Compressor —Continuity
Connector Terminal
F3 2 Ground Yes
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM