Pressure NISSAN TEANA 2014 Service Manual

SYSTEM
HAC-119
< SYSTEM DESCRIPTION > [MANUAL AIR CONDITIONER]
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2. The blower speed dial is turned completely counterclockwise to the OFF position.
3. The A/C switch is manually turned OFF.
In other words, the compressor ON request cannot be turned off in D/F or DEF modes.
REFRIGERANT PRESSURE PROTECTION
The refrigerant system is protected against excessively high- or low-pressures by the refrigerant pressure sen-
sor, located on the liquid tank on the condenser. The refr igerant pressure sensor detects the pressure inside
the refrigerant line and sends a voltage signal to the EC M. If the system pressure rises above or falls below
the following values, the ECM requests the IPDM E/ R to de-energize the A/C relay and disengage the com-
pressor.
• 3.12 MPa (31.82 kg/cm
2, 452.4 psi) or more (When the engine speed is less than 1,500 rpm)
• 2.74 MPa (27.95 kg/cm
2, 397.3 psi) or more (When the engine speed is 1,500 rpm or more)
• 0.14 MPa (1.43 kg/cm
2, 20.3 psi) or less
PRESSURE RELIEF VALVE
The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.
When the pressure of refrigerant in the system incr eases to an abnormal level [more than 2,990 kPa (30.5 kg/
cm
2, 433.6 psi)], the release port on the pressure relief valve automatically opens and releases refrigerant into
the atmosphere.
COMPRESSOR OIL CIRCULATION CONTROL
When the engine starts while the engine coolant temperature is 56 °C (133 °F) or less, ECM activates the com-
pressor for approximately 6 seconds and circulates the compressor lubricant once.
OPERATING RATE CONTROL
When the set temperature is other than fully cold or the air outlet is “VENT”, “B/L” or “FOOT”, the front air con-
trol controls the compressor activation depending on ambient temperature.
Door ControlINFOID:0000000009463200
DOOR MOTOR CONTROL
• A Local Control Unit (LCU) is built into each door motor and detects the door position by using a Position
Balanced Resistor (PBR).
• Each door motor LCU has a unique address. The front air control communicates with the door motor LCUs by using each door’s unique communication address. The front air control sends requested door position
commands to each door motor LCU via a Local Interconnect Network (LIN) communication line. Each door
motor’s LCU receives the command and sends back a door position feedback signal.
• Each LCU controls each door to the appropriate posit ion depending on the control signal from the front air
control. When the door movement is complete, the LCU transmits a signal to the front air control indicating
that the door movement is complete.
SWITCHES AND THEIR CONTROL FUNCTION
ALIIA0607GB
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DIAGNOSIS SYSTEM (BCM)HAC-125
< SYSTEM DESCRIPTION > [MANUAL AIR CONDITIONER]
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CONSULT Function (BCM - AIR CONDITIONER)INFOID:0000000009958323
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.
DATA MONITOR
Signal buffer system SIGNAL BUFFER ×
TPMS AIR PRESSURE MONITOR ××××
System Sub System
Direct Diagnostic Mode
Ecu Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN Diag Support Mntr
Monitor Item [Unit] Description
FAN ON SIG [On/Off] Indicates condition of fan switch.
AIR COND SW [On/Off] Indicates condition of A/C switch.
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INSUFFICIENT COOLINGHAC-155
< SYMPTOM DIAGNOSIS > [MANUAL AIR CONDITIONER]
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INSUFFICIENT COOLING
Component Function CheckINFOID:0000000009463223
SYMPTOM: Insufficient cooling
INSPECTION FLOW
1. CONFIRM SYMPTOM BY PERFORMING OP ERATION CHECK - TEMPERATURE DECREASE
1. Press the A/C switch.
2. Turn temperature control dial counterclockwise to maximum cold.
3. Check for cold air at discharge air outlets.
Can a symptom be duplicated?
YES >> GO TO 3
NO >> GO TO 2
2. CHECK FOR ANY SYMPTOMS
Perform a complete operational check and check for any symptoms. Refer to HAC-140, "Work Procedure"
.
Does another symptom exist?
YES >> Refer to HAC-154, "Symptom Table".
NO >> System OK.
3. CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 4
4. CHECK DRIVE BELTS
Check A/C compressor belt tension. Refer to EM-19, "Checking Drive Belts"
(QR25DE) or EM-134, "Checking
Drive Belts" (VQ35DE).
Is the inspection result normal?
YES >> GO TO 5
NO >> Adjust or replace compressor belt. Refer to EM-19, "Tension Adjustment"
(QR25DE) or EM-134,
"Tension Adjustment" (VQ35DE).
5. CHECK AIR MIX DOOR MOTOR OPERATION
Check and verify air mix door mechanism for smooth operation.
Does air mix door operate correctly?
YES >> GO TO 6
NO >> Check air mix door motor circuit. Refer to HAC-144, "Diagnosis Procedure"
.
6. CHECK COOLING FAN MOTOR OPERATION
Check and verify cooling f an motor for smooth operation.
Does cooling fan motor operation correctly?
YES >> GO TO 7
NO >> Check cooling fan motor. Refer to EC-499, "Component Function Check"
(QR25DE) or EC-953,
"Component Function Check" (VQ35DE).
7. CHECK RECOVERY/RECYCLING EQUIPMENT BEFORE USAGE
Check recovery/recycling equipment befor e connecting to vehicle. Verify there is no pressure in the recovery/
recycling equipment by checking the gauges. If pressure exists, recover refrigerant from equipment lines.
>> GO TO 8
8. CHECK REFRIGERANT PURITY
1. Connect recovery/recycling equipment to vehicle.
2. Confirm refrigerant purity in supply tank us ing recovery/recycling and refrigerant identifier.
Is the inspection result normal?
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HAC-156
< SYMPTOM DIAGNOSIS >[MANUAL AIR CONDITIONER]
INSUFFICIENT COOLING
YES >> GO TO 9
NO >> Check contaminated refrigerant. Refer to HA-9, "HFC-134a (R-134a) Service Tool and Equip-
ment".
9. CHECK REFRIGERANT PRESSURE
Check refrigerant pressure with manifold gauge connected. Refer to HA-28, "Inspection"
.
Is the inspection result normal?
YES >> Perform diagnostic work flow. Refer to HA-15, "Workflow".
NO >> GO TO 10
10. CHECK FOR EVAPORATOR FREEZE UP
Start engine and run A/C. Check for evaporator freeze up.
Does evaporator freeze up?
YES >> Perform diagnostic work flow. Refer HA-15, "Workflow".
NO >> GO TO 11
11 . CHECK AIR DUCTS
Check ducts for air leaks.
Is the inspection result normal?
YES >> System OK.
NO >> Repair air leaks.
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COMPRESSOR DOES NOT OPERATEHAC-159
< SYMPTOM DIAGNOSIS > [MANUAL AIR CONDITIONER]
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COMPRESSOR DOES NOT OPERATE
DescriptionINFOID:0000000009463225
Symptom: Compressor does not operate.
Diagnosis ProcedureINFOID:0000000009463226
NOTE:
• Perform self-diagnoses with CONSULT before perform ing symptom diagnosis. If DTC is detected, perform
the corresponding diagnosis.
• Check that refrigerant system is properly charged. If refrigerant amount is below the proper amount, perform
inspection of refrigerant leakage.
1.CHECK MAGNET CLUTCH OPERATION
Check magnet clutch. Refer to HAC-87, "Component Function Check"
.
Does it operate normally?
YES >> GO TO 2.
NO >> Repair or replace malfunctioning parts.
2.CHECK REFRIGERANT PRESSURE SENSOR
Check refrigerant pressure sensor. Refer to EC-523, "Component Function Check"
(QR25DE) or EC-979,
"Component Function Check" (VQ35DE).
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace malfunctioning parts.
3.CHECK FRONT AIR CONTROL OUTPUT SIGNAL
With CONSULT
Check “FAN ON” and “” in “DATA MONI TOR” mode of “” using CONSULT.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace front air control. Refer to HAC-161, "Removal and Installation"
.
4.CHECK ECM INPUT SIGNAL
With CONSULT
Check “AIR COND SIG” and “HEATER FAN SW” in “DATA MONITOR” mode of “ECM” using CONSULT.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Check CAN communication system. Refer to LAN-18, "Trouble Diagnosis Flow Chart"
.
5.CHECK IPDM E/R INPUT SIGNAL
With CONSULT
Monitor item Condition Status
AIR COND SW A/C switch ON On
OFF Off
FAN ON Blower motor ON On
OFF Off
Monitor item Condition Status
AIR COND SIG A/C switch ON On
OFF Off
HEATER FAN SW Blower motor ON On
OFF Off
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REFRIGERANT PRESSURE SENSORHAC-163
< REMOVAL AND INSTALLATION > [MANUAL AIR CONDITIONER]
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REFRIGERANT PRESSURE SENSOR
Removal and InstallationINFOID:0000000009463229
REMOVAL
1. Discharge the refrigerant. Refer to HA-23, "Recycle Refrigerant".
2. Remove the front bumper fascia. Refer to EXT-17, "Removal and Installation"
.
3. Disconnect the harness connector from the refrigerant pressure sensor.
4. Remove the refrigerant pressure sensor. CAUTION:
Cap or wrap the opening of the refrigerant pressu re sensor with suitable material such as vinyl
tape to avoid the entry of air.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not reuse O-ring.
• Apply A/C oil to the O-ri ng of the refrigerant pressu re sensor for installation.
• After charging refrigerant, check for leaks. Refer to HA-21, "Leak Test"
.
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INL-12
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
INT LAMP
INT LAMP : CONSULT Function (BCM - INT LAMP)INFOID:0000000009956798
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”, potentially causing a di scharged battery and a no-start condition.
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
NOTE:
The items listed below are the only applicable Work Support it ems for this vehicle. If other items are displayed
on CONSULT, do not use or change t he setting for these other items.
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ×
TPMS AIR PRESSURE MONITOR ××××
System Sub System
Direct Diagnostic Mode
Ecu Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN Diag Support Mntr
Monitor Item [Unit] Description
REQ SW -DR [On/Off] Indicates condition of door request switch LH.
REQ SW -AS [On/Off] Indicates condition of door request switch RH.
PUSH -SW [On/Off] Indicates condition of push-button ignition switch.
UNLK SEN -DR [On/Off] Indicates condition of door unlock sensor.
DOOR SW-DR [On/Off] Indicates condition of front door switch LH.
DOOR SW-AS [On/Off] Indicates condition of front door switch RH.
DOOR SW-RR [On/Off] Indicates condition of rear door switch RH.
DOOR SW-RL [On/Off] Indicates condition of rear door switch LH.
DOOR SW-BK [On/Off] Indicates condition of trunk switch.
CDL LOCK SW [On/Off] Indicates condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW [On/Off] Indicates condition of unlock signal from door lock and unlock switch.
KEY CYL LK-SW [On/Off] Indicates condition of lock signal from door key cylinder switch.
KEY CYL UN-SW [On/Off] Indicates condition of unlock signal from door key cylinder switch.
TRNK/HAT MNTR [On/Off] Indicates condition of trunk room lamp switch.
RKE-LOCK [On/Off] Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off] Indicates condition of unlock signal from Intelligent Key.
Te s t I t e m D e s c r i p t i o n
INT LAMP This test is able to check interior room lamp operation [On/Off].
STEP LAMP TEST This test is able to check step lamp operation [On/Off].
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LAN
SYSTEMLAN-33
< SYSTEM DESCRIPTION > [CAN]
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Engine status signal T R R R R
Fuel consumption monitor signal T R R
Fuel filler cap warning display signal T R
Malfunctioning indicator lamp signal TR
RT
Oil pressure warning lamp signal T R
Power generation command value
signal TR
Target throttle position signal T R
Wide open throttle position signal T R
EPS operation signal R T
Hydraulic pump electric power steer-
ing warning lamp signal TR
Detention switch signal T R R
Front wiper stop position signal T R
High beam status signal R T
Hood switch signal T R
Interlock/PNP switch signal RT
TR R
Low beam status signal R T
Oil pressure switch signal RT
TR R
Push-button ignition switch status
signal TR
Rear window defogger control signal R T
Sleep ready signal T R
Starter relay status signal T R
Steering lock unit status signal T R
Steering lock relay signal RT
TR
Current gear position signal T R R
CVT position indicator signal T R R
Input shaft revolution signal R T R R
Manual mode indicator signal T R R
N range signal T R
Output shaft revolution signal R T R R
O/D OFF indicator signal
*1TR R
P range signal T R R
Shift position signal T R R
Brake fluid level signal T R
Distance to empty signal T R
Fuel filler cap warning reset signal R T
Fuel level low warning signal T R
Fuel level sensor signal R T Signal name
ECM
EPS
IPDM-E TCM
M&A
STRG AV
AV M
HVAC ABS
BCM
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LAN-34
< SYSTEM DESCRIPTION >[CAN]
SYSTEM
Paddle shift down signal*2
RT
Paddle shift up signal
*2RT
Manual mode signal
*2RT
Market information signal T R R
Not manual mode signal
*2RT
Overdrive control switch signal
*1RT
Parking brake switch signal T R R R
Seat belt buckle switch signal T R
Vehicle speed signal RRRR T R R R
RRRRRR TR
Steering angle sensor signal R T R R
Buzzer output signal RT
RT
Meter display signal R T
A/C switch signal R T
*3T*4
Ambient sensor signal*3RT
Blower fan motor switch signal R T
*3T*4
ABS operation signal R T
ABS warning lamp signal R T
Brake warning lamp signal R T
SLIP indicator lamp signal R T
TCS operation signal R T
VDC OFF indicator lamp signal R T
VDC operation signal R T
Yaw rate signal RT
Day time running light request signal R R R T
Door switch signal R R R R T
Front fog light request signal R R R R T
Front wiper request signal R R T
High beam request signal R R R R T
Horn reminder signal R T
Ignition switch ON signal R T
Key warning signal R T
Low beam request signal R R R R T
Meter TPMS display signal R T
Position light request signal R R R R T
Rear window defogger switch signal R R T
Sleep wake up signal R R T
Starter control relay signal R T
Theft warning horn request signal R T
Tire pressure data signal R R T Signal name
ECM
EPS
IPDM-E TCM
M&A
STRG AV
AV M
HVAC ABS
BCM
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LU-1
ENGINE
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SECTION LU
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CONTENTS
ENGINE LUBRICATION SYSTEM
QR25DE
PRECAUTION ................ ...............................
3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution for Liquid Gasket .....................................3
PREPARATION ............................................5
PREPARATION .............................................. .....5
Special Service Tool ........................................... ......5
Commercial Service Tool ..........................................5
SYSTEM DESCRIPTION ..............................7
LUBRICATION SYSTEM ............................... .....7
Lubrication Circuit ............................................... ......7
Schematic .................................................................8
PERIODIC MAINTENANCE ..........................9
ENGINE OIL ................................................... .....9
Inspection ............................................................ ......9
Changing Engine Oil ...............................................10
OIL FILTER ........................................................11
Removal and Installation .........................................11
REMOVAL AND INSTALLA TION ...............13
OIL PUMP ....................................................... ....13
Exploded View .................................................... ....13
Removal and Installation .........................................13
Disassembly and Assembly ................................ ....13
Inspection ................................................................14
OIL COOLER ......................................................16
Exploded View .................................................... ....16
Removal and Installation .........................................16
Inspection ............................................................ ....17
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
18
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
18
Oil Pressure ......................................................... ....18
Oil Pump ..................................................................18
Regulator Valve .......................................................18
Oil Capacity .............................................................18
VQ35DE
PRECAUTION ...... ........................................
19
PRECAUTIONS .................................................19
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
19
Precaution for Liquid Gasket ...................................19
PREPARATION ...........................................21
PREPARATION .................................................21
Special Service Tool ............................................ ....21
Commercial Service Tool ........................................21
SYSTEM DESCRIPTION .............................23
LUBRICATION SYSTEM ..................................23
Lubrication Circuit ................................................ ....23
Schematic ................................................................24
PERIODIC MAINTENANCE ........................25
ENGINE OIL ......................................................25
Inspection ............................................................ ....25
Changing Engine Oil ................................................26
OIL FILTER .......................................................27
Removal and Installation .........................................27
REMOVAL AND INSTALLATION ...............29
Revision: November 20132014 Altima NAM