2001 NISSAN ALMERA N16 Compressor

SBR686C
Precautions
PRECAUTIONSNJSU0024+When installing each rubber part, final tightening must be
carried out under unladen condition* with tires on ground.
Oil will shorten the life of rubber bushes. Be sure to wipe
off any spilled oil.
*: Fuel, radiator coolant and engine oil full. Spare tire, jack,
hand tools and mats in designated positions.
+Use flare nut wrench when removing or installing brake
tubes.
+After installing removed suspension parts, check wheel
alignment.
+Do not jack up at the trailing arm and lateral link.
+Always torque brake lines when installing.
+Lock nuts are unreusable parts; always use new ones.
When replacing, do not wipe the oil off of the new lock nut
before tightening.
Preparation
COMMERCIAL SERVICE TOOLSNJSU0026
Tool name Description
Equivalent to
1 Flare nut crowfoot
2 Torque wrench
NT360
Removing and installing brake piping
a: 10 mm (0.39 in)
Spring compressor
NT717
Removing and installing coil spring
Noise, Vibration and Harshness (NVH)
Troubleshooting
NJSU0027Refer to ªNoise, Vibration and Harshness (NVH) Troubleshootingº,
ªFRONT SUSPENSIONº, SU-4.
REAR SUSPENSION
Precautions
SU-16

SRA806A
DISASSEMBLYNJSU00331. Set shock absorber in vise, thenloosenpiston rod lock nut.
Do not remove piston rod lock nut at this time.
2. Compress spring with Tool so that the shock absorber upper
spring seat can be turned by hand.
WARNING:
Make sure that the pawls of the two spring compressors are
firmly hooked on the spring. The spring compressors must be
tightened alternately so as not to tilt the spring.
3. Remove piston rod lock nut.
INSPECTIONNJSU0034Shock Absorber AssemblyNJSU0034S01+Check for smooth operation through a full stroke, both com-
pression and extension.
+Check for oil leakage on welded or gland packing portions.
+Check piston rod for cracks, deformation or other damage.
Replace if necessary.
Upper Rubber Seat and BushingNJSU0034S02Check rubber parts for deterioration or cracks.
Replace if necessary.
Coil SpringNJSU0034S03Check for cracks, deformation or other damage. Replace if
necessary.
SSU039
ASSEMBLYNJSU0035+Locate upper spring seat as shown.
SFA436B
+When installing coil spring, be careful not to reverse top and
bottom direction. (Top end is flat.)
+When installing coil spring on shock absorber, it must be posi-
tioned as shown in figure at left.
CAUTION:
Do not reuse piston rod lock nut.
REAR SUSPENSION
Coil Spring and Shock Absorber (Cont'd)
SU-22

HEATER &
AIR CONDITIONER
SECTION
HA
CONTENTS
PRECAUTIONS...............................................................2
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²...............2
Precautions for Working with HFC-134a (R-134a) .....2
General Refrigerant Precautions .................................2
Precautions for Refrigerant Connection ......................3
Precautions for Servicing Compressor ........................5
Precautions for Service Equipment .............................6
Wiring Diagrams and Trouble Diagnosis .....................8
PREPARATION...............................................................9
Special Service Tools ..................................................9
HFC-134a (R-134a) Service Tools and
Equipment .................................................................. 11
DESCRIPTION...............................................................13
Refrigeration System .................................................13
CSV613 Variable Displacement Compressor............14
Component Layout ....................................................18
Control Operation ......................................................19
Discharge Air Flow.....................................................20
System Description ....................................................21
TROUBLE DIAGNOSES................................................22
Component Location..................................................22
Wiring Diagram - Heater............................................24
Circuit Diagram - Air Conditioner...............................26
Wiring Diagram - A/C, M - .........................................27
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ..................................................39
Operational Check .....................................................40
Intake Door ................................................................42
Mode Door .................................................................46Air Mix Door ...............................................................48
Max Hot Door (For Scandinavia and Cold Spec
Models) ......................................................................50
Blower Motor..............................................................54
Magnet Clutch............................................................61
Insufficient Cooling ....................................................74
Insufficient Heating ....................................................82
Noise ..........................................................................83
SERVICE PROCEDURE................................................84
HFC-134a (R-134a) Service Procedure ....................84
Maintenance of Lubricant Quantity in
Compressor ...............................................................86
Compressor ...............................................................89
Compressor Clutch - CSV613 (CALSONIC
make) .........................................................................90
Heater & Cooling Unit (Heater Core) ........................94
A/C Evaporator ..........................................................94
Blower Unit ................................................................95
Refrigerant Lines .......................................................97
Belt ...........................................................................101
Idle Air Control Valve (IACV) - Auxiliary Air
Control (AAC) Valve ................................................102
Ventilation Air Filter ..................................................102
SERVICE DATA AND SPECIFICATIONS (SDS).......103
Compressor .............................................................103
Lubricant ..................................................................103
Refrigerant ...............................................................103
Engine Idling Speed (When A/C is On)...................103
Belt Tension .............................................................103

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
NJHA0190The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to NISSAN MODEL N16 is as follows (The compo-
sition varies according to the destination and optional equipment.):
+For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
+For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
WARNING:
+To avoid rendering the SRS inoperative, 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 should be per-
formed by an authorized NISSAN dealer.
+Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.
+Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
Precautions for Working with HFC-134a
(R-134a)
NJHA0113WARNING:
+CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. These refrigerants
must never be mixed, even in the smallest amounts. If the refrigerants are mixed, compressor fail-
ure is likely to occur.
+Use only specified lubricant for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) compo-
nents. If lubricant other than that specified is used, compressor failure is likely to occur.
+The specified HFC-134a (R-134a) lubricant rapidly absorbs moisture from the atmosphere. The fol-
lowing handling precautions must be observed:
a) When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.
b) When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just
before connecting the components. Connect all refrigerant loop components as quickly as pos-
sible to minimize the entry of moisture into system.
c) Only use the specified lubricant from a sealed container. Immediately reseal containers of lubri-
cant. Without proper sealing, lubricant will become moisture saturated and should not be used.
d) Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose
and throat. Remove R-134a from the A/C system, using certified service equipment meeting
requirements of R-134a recycling equipment, or R-134a recovery equipment. If accidental system
discharge occurs, ventilate work area before resuming service. Additional health and safety
information may be obtained from refrigerant and lubricant manufacturers.
e) Do not allow lubricant (Nissan A/C System Oil Type S) to come in contact with styrofoam parts.
Damage may result.
General Refrigerant PrecautionsNJHA0114WARNING:
+Do not release refrigerant into the air. Use approved recovery/recycling equipment to capture the
refrigerant every time an air conditioning system is discharged.
+Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or
air conditioning system.
PRECAUTIONS
Supplemental Restraint System (SRS) ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº
HA-2

O-RING AND REFRIGERANT CONNECTIONNJHA0115S02
NHA493
CAUTION:
The new and former refrigerant connections in some systems 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.
O-Ring Part Numbers and SpecificationsNJHA0115S0201
SHA814E
Connection
typeO-ring
sizePart number D mm (in) W mm (in)
New 8 92471 N8210 6.8 (0.268) 1.85 (0.0728)
New
1292472 N8210 10.9 (0.429) 2.43 (0.0957)
Former 92475 71L00 11.0 (0.433) 2.40 (0.0945)
New
1692473 N8210 13.6 (0.535) 2.43 (0.0957)
Former 92475 72L00 14.3 (0.563) 2.30 (0.0906)
New 19 92474 N8210 16.5 (0.650) 2.43 (0.0957)
WARNING:
Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system
is less than atmospheric pressure. Then gradually loosen the discharge side hose fitting and remove
it.
CAUTION:
When replacing or cleaning refrigerant cycle components, observe the following.
+When the compressor is removed, store it in the same position as it is when mounted on the car.
Failure to do so will cause lubricant to enter the low pressure chamber.
+When connecting tubes, always use a torque wrench and a back-up wrench.
+After disconnecting tubes, immediately plug all openings to prevent entry of dirt and moisture.
PRECAUTIONS
Precautions for Refrigerant Connection (Cont'd)
HA-4

+When installing an air conditioner in the vehicle, connect the pipes as the final stage of the opera-
tion. Do not remove the seal caps of pipes and other components until just before required for
connection.
+Allow components stored in cool areas to warm to working area temperature before removing seal
caps. This prevents condensation from forming inside A/C components.
+Thoroughly remove moisture from the refrigeration system before charging the refrigerant.
+Always replace used O-rings.
+When connecting tube, apply lubricant to circle of the O-rings shown in illustration. Be careful not
to apply lubricant to threaded portion.
Lubricant name: Nissan A/C System Oil Type R for DKV-11G compressor
Part number: KLH00-PAGR0
Lubricant name: Nissan A/C System Oil Type S for CSV613 compressor
Part number: KLH00-PAGS0
+O-ring must be closely attached to dented portion of tube.
+When replacing the O-ring, be careful not to damage O-ring and tube.
+Connect tube until you hear it click, then tighten the nut or bolt by hand until snug. Make sure that
the O-ring is installed to tube correctly.
+After connecting line, conduct leak test and make sure that there is no leakage from connections.
When the gas leaking point is found, disconnect that line and replace the O-ring. Then tighten
connections of seal seat to the specified torque.
RHA861F
Precautions for Servicing CompressorNJHA0116+Plug all openings to prevent moisture and foreign matter from entering.
+When the compressor is removed, store it in the same position as it is when mounted on the car.
+When replacing or repairing compressor, follow ªMaintenance of Lubricant Quantity in Compres-
sorº exactly. Refer to HA-86.
+Keep friction surfaces between clutch and pulley clean. If the surface is contaminated, with
lubricant, wipe it off by using a clean waste cloth moistened with thinner.
+After compressor service operation, turn the compressor shaft by hand more than five turns in
both directions. This will equally distribute lubricant 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, apply voltage to the new one and check for normal
operation.
PRECAUTIONS
Precautions for Refrigerant Connection (Cont'd)
HA-5

Special Service ToolsNJHA0119DKV-11G COMPRESSORNJHA0119S01
Tool number
Tool nameDescription
KV99231260
Clutch disc wrench
NT204
Removing shaft nut and clutch disc
KV99232340
Clutch disc puller
NT206
Removing clutch disc
KV99234330
Pulley installer
NT207
Installing pulley
KV99233130
Pulley puller
NT208
Removing pulley
CSV613 COMPRESSORNJHA0119S02
Tool number
Tool nameDescription
KV99106100
Clutch disc wrench
NT232
NT378
Removing center bolt
PREPARATION
Special Service Tools
HA-9

HFC-134a (R-134a) Service Tools and
Equipment
=NJHA0120Never mix HFC-134a refrigerant and/or its specified lubricant with CFC-12 (R-12) refrigerant and/or its lubri-
cant.
Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/
lubricant.
Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles
refrigerant and/or lubricant) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid
mixed use of the refrigerants/lubricant.
Adapters that convert one size fitting to another must never be used: refrigerant/lubricant contamination will
occur and compressor failure will result.
Tool number
Tool nameDescription
HFC-134a (R-134a)
refrigerant
NT196
Container color: Light blue
Container marking: HFC-134a (R-134a)
Fitting size: Thread size
+Large container 1/2²-16 ACME
KLH00-PAGR0
Nissan A/C System Oil
Type R
KLH00-PAGS0
Nissan A/C System Oil
Type S
NT197
Type: Poly alkylene glycol oil (PAG), type R
Application: HFC-134a (R-134a) vane rotary com-
pressors (Nissan only)
Type S
Application: HFC-134a (R-134a) swash plate com-
pressors (Nissan only)
Lubricity: 40 m!(1.4 Imp fl oz)
Recovery/Recycling
Recharging equipment
(ACR4)
NT195
Function: Refrigerant Recovery and Recycling and
Recharging
Electrical leak detector
NT198
Power supply:
+DC 12V (Cigarette lighter)
Manifold gauge set (with
hoses and couplers)
NT199
Identification:
+The gauge face indicates R-134a.
Fitting size: Thread size
+1/2²-16 ACME
PREPARATION
HFC-134a (R-134a) Service Tools and Equipment
HA-11