SERVICE DATA AND SPECIFICATIONS (SDS)MT-95
< SERVICE INFORMATION > [RS6F94R]
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SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000005929704
Transaxle type RS6F94R
Engine type MR18DE
Number of speed 6
Synchromesh type Warner
Shift pattern
Gear ratio 1st 3.727
2nd 2.105
3rd 1.452
4th 1.171
5th 0.971
6th 0.811
Reverse 3.687
Final gear 3.933
Number of teeth Input gear 1st 11
2nd 19
3rd 31
4th 35
5th 35
6th 37
Reverse 11
Main gear 1st 41
2nd 40
3rd 45
4th 41
5th 34
6th 30
Reverse 42
Reverse idler gear Input/Output 28/29
Final gear Final gear/Pinion 59/15
Side gear/Pinion
mate gear 21/18
Oil capacity (Reference) (US pt, Imp pt)Approx. 2.0 (4-1/4, 3-1/2)
Remarks Reverse synchronizer Installed
Triple-cone synchronizer 1st and 2nd
PCIB1769E
Revision: May 2010 2011 Versa
MTC-1
AIR CONDITIONER
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SECTION MTC
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CONTENTS
MANUAL AIR CONDITIONER
SERVICE INFORMATION .. ..........................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
3
Precaution for Procedure without Cowl Top Cover ......4
Precaution for Working with HFC-134a (R-134a) ......4
General Refrigerant Precaution ................................4
Oil Precaution ............................................................5
Precaution for Refrigerant Connection ......................5
Precaution for Service of Compressor ................ ......8
Precaution for Service Equipment ....................... ......8
Precaution for Leak Detection Dye ...........................9
PREPARATION ..................................................11
HFC-134a (R-134a) Service Tool and Equipment ....11
Commercial Service Tool ........................................14
REFRIGERATION SYSTEM ..............................15
Refrigerant Cycle ................................................ ....15
Refrigerant System Protection ................................15
Component Part Location ................................... ....16
OIL ......................................................................17
Maintenance of Oil Quantity in Compressor ....... ....17
AIR CONDITIONER CONTROL .........................19
Control Operation ................................................ ....19
Discharge Air Flow ..................................................20
System Description .................................................20
TROUBLE DIAGNOSIS .....................................22
CONSULT-III Function (BCM) ............................. ....22
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ......................................................
23
Component Parts and Harness Connector Loca-
tion ...................................................................... ....
23
Schematic ...............................................................26
Wiring Diagram - Heater - .......................................27
Wiring Diagram - A/C,M - .................................... ....28
Operational Check ...................................................31
Mode Door ...............................................................32
Air Mix Door .............................................................33
Intake Door ..............................................................34
Front Blower Motor Circuit .......................................34
Magnet Clutch Circuit (If Equipped) ..................... ....38
Insufficient Cooling ..................................................46
Insufficient Heating ..................................................53
Noise .......................................................................54
CONTROLLER ..................................................56
Removal and Installation .........................................56
Disassembly and Assembly .....................................57
THERMO CONTROL AMPLIFIER ....................58
Removal and Installation .........................................58
A/C UNIT ASSEMBLY ......................................59
Removal and Installation .........................................59
Disassembly and Assembly .....................................61
BLOWER MOTOR ............................................63
Removal and Installation .........................................63
INTAKE DOOR ..................................................64
Intake Door Cable Adjustment .................................64
AIR MIX DOOR .................................................65
Air Mix Door Cable Adjustment ...............................65
MODE DOOR ....................................................66
Mode Door Cable Adjustment .................................66
BLOWER FAN RESISTOR ...............................67
Removal and Installation .........................................67
HEATER CORE .................................................68
Removal and Installation .........................................68
DUCTS AND GRILLES .....................................69
Removal and Installation .........................................69
Revision: May 2010 2011 Versa
MTC-2
REFRIGERANT LINES ......................................74
HFC-134a (R-134a) Service Procedure .............. ...74
Component .............................................................76
Removal and Installation of Compressor -
HR16DE .................................................................
78
Removal and Installation of Compressor -
MR18DE .................................................................
80
Removal and Installation for Compressor Clutch -
Type 1 .................................................................. ...
81
Removal and Installation for Compressor Clutch -
Type 2 .................................................................. ...
83
Removal and Installation of Low-Pressure Flexi-
ble Hose .................................................................
86
Removal and Installation of High-Pressure Flexi-
ble Hose .................................................................
87
Removal and Installation of High-Pressure Pipe ....88
Removal and Installation of Refrigerant Pressure
Sensor .................................................................. ...
89
Removal and Installation of Condenser ..................89
Removal and Installation of Liquid Tank .................90
Removal and Installation of Evaporator ............... ...91
Removal and Installation of Expansion Valve .........92
Checking of Refrigerant Leaks ................................92
Checking System for Leaks Using the Fluorescent
Leak Detector ..........................................................
92
Dye Injection ...........................................................93
Electronic Refrigerant Leak Detector ......................93
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
96
Compressor ......................................................... ...96
Oil ............................................................................96
Refrigerant ..............................................................96
Revision: May 2010 2011 Versa
PRECAUTIONSMTC-3
< SERVICE INFORMATION >
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SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006412028
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000005930824
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: May 2010 2011 Versa
MTC-6
< SERVICE INFORMATION >
PRECAUTIONS
MR18DE - TYPE 1 and HR16DEMR18DE - TYPE 2
WARNING:
Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system is
less than atmospheric pressure. Then gradually loo sen the discharge side hose fitting and remove it.
CAUTION:
The new and former refrigerant connections use different O-ring configurations. Do not confuse O-
rings since they are not interchangeable. If a wrong O-ring is installed, refrigerant will leak at, or
around, the connection.
SJIA0697E
SJIA1327E
Revision: May 2010 2011 Versa
MTC-8
< SERVICE INFORMATION >
PRECAUTIONS
Precaution for Service of Compressor
INFOID:0000000005930830
• Plug all openings to prevent moisture and foreign matter from entering.
• When the compressor is removed, store it in th e same position as it is when mounted on the car.
• When replacing or repairing compressor, follow “Maintenance of Oil Quantity in Compressor”
exactly. Refer to MTC-17, "
Maintenance of Oil Quantity in Compressor".
• Keep friction surfaces between clut ch and pulley clean. If the surface is contaminated, with oil, wipe
it off by using a clean waste cloth moistened with thinner.
• After compressor service operation, turn the compresso r shaft by hand more than five turns in both
directions. This will equally distribute oil inside the compressor. After the compressor is installed,
let the engine idle and operate the compressor for one hour.
• After replacing the compressor magnet clutch, ap ply voltage to the new one and check for usual
operation.
Precaution for Service EquipmentINFOID:0000000005930831
RECOVERY/RECYCLING EQUIPMENT
Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Never
introduce any refrigerant other than that specified into the machine.
ELECTRONIC LEAK DETECTOR
Be certain to follow the manufacturer’s instruct ions for tester operation and tester maintenance.
VACUUM PUMP
The oil contained inside the vacuum pump is not compatible with the
specified oil for HFC-134a (R-134a) A/C systems. The vent side of
the vacuum pump is exposed to atmospheric pressure. So the vac-
uum pump oil may migrate out of the pump into the service hose.
This is possible when the pump is switched off after evacuation (vac-
uuming) and hose is connected to it.
To prevent this migration, use a manual valve placed near the hose-
to-pump connection, as follows.
• Usually vacuum pumps have a manual isolator valve as part of the pump. Close this valve to isolat e the service hose from the pump.
• For pumps without an isolator, use a hose equipped with a manual shut-off valve near the pump end. Close the valve to isolate the
hose from the pump.
• If the hose has an automatic shut -off valve, disconnect the hose
from the pump. As long as the hose is connected, the valve is open
and lubricating oil may migrate.
Some one-way valves open when vacuum is applied and close
under a no vacuum condition. Such valves may restrict the pump’s
ability to pull a deep vacuum and are not recommended.
MANIFOLD GAUGE SET
Be certain that the gauge face indicates HFC-134a or R-134a. Be
sure the gauge set has 1/2 ″-16 ACME threaded connections for ser-
vice hoses. Confirm the set has been used only with refrigerant
HFC-134a (R-134a) and specified oils.
RHA270DA
SHA533D
Revision: May 2010 2011 Versa
PRECAUTIONSMTC-9
< SERVICE INFORMATION >
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SERVICE HOSES
Be certain that the service hoses display the markings described
(colored hose with black stripe). All hoses must include positive shut-
off devices (either manual or aut omatic) near the end of the hoses
opposite the manifold gauge.
SERVICE COUPLERS
Never attempt to connect HFC-134a (R-134a) service couplers to a
CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will
not properly connect to the CFC-12 (R-12) system. However, if an
improper connection is attempted, discharging and contamination
may occur.
REFRIGERANT WEIGHT SCALE
Verify that no refrigerant other than HFC-134a (R-134a) and speci-
fied oils have been used with the scale. If the scale controls refriger-
ant flow electronically, the hose fitting must be 1/2 ″-16 ACME.
CHARGING CYLINDER
Using a charging cylinder is not re commended. Refrigerant may be vented into air from cylinder’s top valve
when filling the cylinder with refrigerant. Also, the accura cy of the cylinder is generally less than that of an
electronic scale or of quality recycle/recharge equipment.
Precaution for Leak Detection DyeINFOID:0000000005930832
• The A/C system contains a fluorescent leak detection dy e used for locating refrigerant leaks. An ultraviolet
(UV) lamp is required to illuminate the dye when inspecting for leaks.
• Always wear fluorescence enhancing UV safety goggles to protect your eyes and enhance the visibility of
the fluorescent dye.
• The fluorescent dye leak detector is not a replacement for an electronic refrigerant leak detector. The fluo-
rescent dye leak detector should be used in conjunction with an electronic refrigerant leak detector to pin-
point refrigerant leaks.
• For your safety and your customer’s satisfaction, read and follow all manufacture’s operating instructions
and precautions prior to performing the work.
• A compressor shaft seal should not be repaired because of dye seepage. The compressor shaft seal should
only be repaired after confirming the leak with an electronic refrigerant leak detector.
• Always remove any remaining dye from the leak area after repairs are complete to avoid a misdiagnosis dur-
ing a future service.
RHA272D
Shut-off valve rotati on A/C service valve
Clockwise Open
Counterclockwise Close
RHA273D
RHA274D
Revision: May 2010 2011 Versa
MTC-10
< SERVICE INFORMATION >
PRECAUTIONS
• Do not allow dye to come into contact with painted body panels or interior components. If dye is spilled,
clean immediately with the approved dye cleaner. Fluoresc ent dye left on a surface for an extended period of
time cannot be removed.
• Do not spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.).
• Do not use more than one refrigerant dye bot tle (1/4 ounce /7.4 cc) per A/C system.
• Leak detection dyes for HFC-134a (R-134a) and CFC-12 (R-12) A/C systems are different. Do not use HFC-
134a (R-134a) leak detection dye in CFC-12 (R-12) A/C s ystem or CFC-12 (R-12) leak detector dye in HFC-
134a (R-134a) A/C syst em or A/C system damage may result.
• The fluorescent properties of the dye will remain for over three (3) years unless a compressor malfunction
occurs.
IDENTIFICATION LABEL FOR VEHICLE
Vehicles with factory installed fluorescent dye have an identification label on the front underside of the hood.
NOTE:
• Vehicles with factory installed fluorescent dye have a green label.
• Vehicles without factory installed fluorescent dye have a blue label.
Revision: May 2010 2011 Versa