cooling NISSAN TEANA 2014 Service Manual

IN-CABIN MICROFILTERVTL-5
< SYSTEM DESCRIPTION >
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SYSTEM DESCRIPTION
IN-CABIN MICROFILTER
DescriptionINFOID:0000000009461575
FUNCTION
The fresh air (A) and the recirculated air (B) drawn inside the pas-
senger compartment by the blower fan (1) is kept clean (C) on either
mode by the in-cabin microfilter (2 ), which is located before the
evaporator (3), in the heating and cooling unit assembly.
WJIA2253E
Revision: November 20132014 Altima NAM

DUCTS AND GRILLESVTL-7
< REMOVAL AND INSTALLATION >
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DEFROSTER NOZZLE
DEFROSTER NOZZLE : Removal and InstallationINFOID:0000000009461577
REMOVAL
1. Remove the side defroster ducts (LH/RH). Refer to VTL-7, "SIDE DEFROSTER DUCT : Removal and
Installation".
2. Remove the defroster nozzle screws (A).
3. Release the defroster nozzle pawls. : Pawl
4. Remove the defroster nozzle (1).
INSTALLATION
Installation is in the reverse order of removal.
CENTER VENTILATOR DUCT
CENTER VENTILATOR DUCT : Removal and InstallationINFOID:0000000009461578
REMOVAL
1. Remove the instrument panel assembly. Refer to IP-15, "Removal and Installation".
2. Remove the center ventilator duct screws (A).
3. Remove the center ventilator duct.
INSTALLATION
Installation is in the reverse order of removal.
SIDE DEFROSTER DUCT
SIDE DEFROSTER DUCT : Re moval and InstallationINFOID:0000000009461579
REMOVAL
1. Remove the center ventilator duct. Refer to VTL-7, "CENTER VENTILATOR DUCT : Removal and Instal-
lation".
1. Defroster nozzle 2. Side defroster duct (LH) 3. Center ventilator duct
4. Heating and cooling unit assembly 5. Front floor connecting duct (LH) 6. Front floor duct (LH)
7. Front floor duct nozzle (LH) 8. Rear center ventilator duct 9. Front floor duct nozzle (RH)
10. Front floor duct (RH) 11. Adaptor extension duct 12. Adaptor duct
13. Front floor connecting duct (RH) 14. Side defroster duct (RH) Front
ALIIA0613ZZ
ALIIA0614ZZ
Revision: November 20132014 Altima NAM

BLOWER UNITVTL-13
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BLOWER UNIT
BLOWER UNIT
BLOWER UNIT : Exploded ViewINFOID:0000000009461591
BLOWER UNIT : Removal and InstallationINFOID:0000000009461592
REMOVAL
1. Remove the heating and cooling unit assembly. Refer to HA-41, "HEATING AND COOLING UNIT
ASSEMBLY : Removal and Installation".
2. Disconnect the harness connector (B) from the blower motor.
3. Remove the screws from the blower unit, then remove the blower unit from the heating and cooling unit assembly.
4. Remove the three blower motor screws (A), then remove the blower motor from the blower unit (if necessary).
INSTALLATION
Installation is in the reverse order of removal.
BLOWER MOTOR
BLOWER MOTOR : Removal and InstallationINFOID:0000000009461593
REMOVAL
1. Remove the glove box assembly. Refer to IP-22, "Removal and Installation".
2. Disconnect the harness connector from the blower motor.
1. Blower unit 2. Heating and cooling unit Front
ALIIA0611ZZ
AWIIA1596ZZ
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WW-12
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000009944155
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the follo wing systems to check their operation.
• Front wiper (LO, HI)
• Front fog lamps
• Parking lamps
• Side marker lamps
• Tail lamps
• License plate lamps
• Daytime running lamps
• Headlamps (LO, HI)
• A/C compressor
• Cooling fans (LO, HI)
Operation Procedure
CAUTION:
Do not start the engine.
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield before hand.
NOTE:
• If auto active test mode cannot be actuat ed, check door switch system. Refer to DLK-100,
"Component Function Check".
• When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF.
1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
2. Turn ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, press the front door switch LH 10 times. Then turn the ignition switch OFF.
4. Turn the ignition switch ON within 10 seconds. Af ter that the horn sounds once, and the auto active test
starts.
5. After a series of the following operations is repeated 3 times, auto active test is completed.
Inspection in Auto Active Test Mode
When auto active test mode is actuated, the following operation sequence is repeated 3 times.
*: Outputs duty ratio of 50% for 5 seconds → duty ratio of 100% for 5 seconds on the cooling fan control module.
Operation se-
quence Inspection Location Operation
1 Front wiper LO for 3 seconds → HI for 3 seconds
2 •Front fog lamps
• Parking lamps
• Side marker lamps
•Tail lamps
• License plate lamps 10 seconds
3 Daytime running lamps 10 seconds
4 Headlamps LO ⇔ HI 5 times
5 A/C compressor ON ⇔ OFF 5 times
6
*Cooling fans LO for 5 seconds → HI for 5 seconds
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DIAGNOSIS SYSTEM (IPDM E/R)WW-13
< SYSTEM DESCRIPTION >
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Concept of auto active test
• IPDM E/R starts the auto active test with the door
switch signals transmitted by BCM via CAN communica-
tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.
• The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis chart in auto active test mode
CONSULT Function (IPDM E/R)INFOID:0000000009944156
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
AWMIA1280GB
Symptom Inspection contents Possible cause
Any of the following components do not operate
• Front fog lamps
•Parking lamps
• Side marker lamps
• License plate lamps
•Tail lamps
• Daytime running lamps
• Headlamp (HI, LO)
• Front wiper Perform auto active test.
Does the applicable system
operate? YES BCM signal input circuit
NO • Lamp or motor
• Lamp or motor ground cir-
cuit
• Harness or connector be- tween IPDM E/R and appli-
cable system
• IPDM E/R
Cooling fans do not operate Perform auto active test.
Do the cooling fans operate? YES
• ECM signal input circuit
• CAN communication signal between ECM and IPDM E/
R
NO • Cooling fans
• Harness or connectors be-
tween cooling fans and
cooling fan control module
• Cooling fan control module
• Harness or connectors be- tween cooling fan relay and
cooling fan control module
• Cooling fan relay
• Harness or connectors be- tween IPDM E/R and cool-
ing fan relay
• IPDM E/R
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< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (IPDM E/R)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with IPDM E/R.
ECU IDENTIFICATION
The IPDM E/R part number is displayed.
SELF DIAGNOSTIC RESULT
Refer to PCS-20, "DTC Index".
DATA MONITOR
Direct Diagnostic Mode Description
Ecu Identification The IPDM E/R part number is displayed.
Self Diagnostic Result The IPDM E/R self diagnostic results are displayed.
Data Monitor The IPDM E/R input/output data is displayed in real time.
Active Test The IPDM E/R activates outputs to test components.
CAN Diag Support Mntr The result of transmit/receive diagnosis of CAN communication is displayed.
Monitor Item [Unit] Main
Signals Description
MOTOR FAN REQ [%] ×Indicates cooling fan speed signal received from ECM on CAN communication
line
AC COMP REQ [On/Off] ×Indicates A/C compressor request signal received from ECM on CAN commu-
nication line
TAIL&CLR REQ [On/Off] ×Indicates position light request signal received from BCM on CAN communica-
tion line
HL LO REQ [On/Off] ×Indicates low beam request signal received from BCM on CAN communication
line
HL HI REQ [On/Off] ×Indicates high beam request signal received from BCM on CAN communication
line
FR FOG REQ [On/Off] ×Indicates front fog light request signal received from BCM on CAN communica-
tion line
FR WIP REQ [Stop/1LOW/Low/Hi] ×Indicates front wiper request signal received from BCM on CAN communication
line
WIP AUTO STOP [STOP P/ACT P] ×Indicates condition of front wiper auto stop signal
WIP PROT [Off/BLOCK] ×Indicates condition of front wiper fail-safe operation
IGN RLY1 -REQ [On/Off] Indicates ignition switch ON signal received from BCM on CAN communication
line
IGN RLY [On/Off] ×Indicates condition of ignition relay
PUSH SW [On/Off] Indicates condition of push-button ignition switch
INTER/NP SW [On/Off] Indicates condition of CVT shift position
ST RLY CONT [On/Off] Indicates starter relay status signal received from BCM on CAN communication
line
IHBT RLY -REQ [On/Off] Indicates starter control relay signal received from BCM on CAN communication
line
ST/INHI RLY [Off/ ST /INHI] Indicates condition of starter relay and starter control relay
DETENT SW [On/Off] Indicates condition of CVT shift selector (park position switch)
DTRL REQ [Off] Indicates daytime light request signal received from BCM on CAN communica-
tion line
HOOD SW [On/Off] Indicates condition of hood switch
THFT HRN REQ [On/Off] Indicates theft warning horn request signal received from BCM on CAN commu-
nication line
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DIAGNOSIS SYSTEM (IPDM E/R)WW-15
< SYSTEM DESCRIPTION >
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ACTIVE TEST
CAN DIAG SUPPORT MNTR
Refer to LAN-15, "CAN Diagnostic Support Monitor".
HORN CHIRP [On/Off] Indicates horn reminder signal received from BCM on CAN communication line
HOOD SW 2 [On/Off] Indicates condition of hood switch 2 Monitor Item [Unit]
Main
Signals Description
Test item Description
HORN This test is able to check horn operation [On].
FRONT WIPER This test is able to check wiper motor operation [Hi/Lo/Off].
MOTOR FAN This test is able to check cooling fan operation [4/3/2/1].
EXTERNAL LAMPS This test is able to check external lamp operation [Fog/Hi/Lo/TAIL/Off].
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM