2001 NISSAN ALMERA TINO air conditioning

Supplemental Restraint System (SRS) “AIR
BAG” and “SEAT BELT PRE-TENSIONER”
NLHA0190The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” 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 V10 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)
NLHA0113WARNING:
+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 PrecautionsNLHA0114WARNING:
+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) “AIR BAG” and “SEAT BELT PRE-TENSIONER”
HA-2

CSV613 Variable Displacement Compressor
GENERAL INFORMATIONNLHA02061. The CSV613 compressor differs from previous units. The vent temperatures of the CSV613 compressor
do not drop too far below 5°C (41°F) when:
+evaporator intake air temperature is less than 20°C (68°F)
+engine is running at speeds less than 1,500 rpm.
This is because the CSV613 compressor provides a means of“capacity”control.
2. The CSV613 compressor provides refrigerant control under varying conditions. During cold winters, it may
not produce high refrigerant pressure discharge (compared to previous units) when used with air condi-
tioning systems.
3. A“clanking”sound may occasionally be heard during refrigerant charge. The sound indicates that the tilt
angle of the swash plate has changed and is not a problem.
4. For air conditioning systems with the CSV613 compressor, the clutch remains engaged unless: the sys-
tem main switch, fan switch or ignition switch is turned OFF. When ambient (outside) temperatures are
low or when the amount of refrigerant is insufficient, the clutch is disengaged to protect the compressor.
5. A constant range of suction pressure is maintained when engine speed is greater than a certain value. It
normally ranges from 147 to 177 kPa (1.47 to 1.77 bar, 1.5 to 1.8 kg/cm
2, 21 to 26 psi) under varying con-
ditions.
In previous compressors, however, suction pressure was reduced with increases in engine speed.
DESCRIPTION
CSV613 Variable Displacement Compressor
HA-13

PERFORMANCE CHART=NLHA0150Test ConditionNLHA0150S01Testing must be performed as follows:
Vehicle location: Indoors or in the shade (in a well-ventilated place)
Doors: Closed
Door window: Open
Hood: Open
TEMP.: Max. COLD
Discharge Air: Face Vent
REC switch: (Recirculation) set
FAN speed: High speed
Engine speed: Idle speed
Operate the air conditioning system for 10 minutes before taking
measurements.
Test ReadingNLHA0150S02Recirculating-to-discharge Air Temperature TableNLHA0150S0201
Inside air (Recirculating air) at blower assembly inlet
Discharge air temperature at center venti-
lator
°C(°F) Relative humidity
%Air temperature
°C(°F)
50-6020 (68) 6.0 - 8.8 (43 - 48)
25 (77) 9.5 - 12.8 (49 - 55)
30 (86) 14.1 - 17.7 (57 - 64)
60-7020 (68) 8.8 - 11.6 (48 - 53)
25 (77) 12.8 - 16.2 (55 - 61)
30 (86) 17.7 - 21.1 (64 - 70)
TROUBLE DIAGNOSES
Insufficient Cooling (Cont’d)
HA-78

Low-pressure Side Sometimes Becomes Negative.NLHA0151S05
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side sometimes
becomes negative.
AC354A
+Air conditioning system
does not function and
does not cyclically cool
the compartment air.
+The system constantly
functions for a certain
period of time after com-
pressor is stopped and
restarted.Refrigerant does not dis-
charge cyclically.
↓
Moisture is frozen at expan-
sion valve outlet and inlet.
↓
Water is mixed with refriger-
ant.+Drain water from refriger-
ant or replace refrigerant.
+Replace liquid tank.
Low-pressure Side Becomes Negative.NLHA0151S06
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side becomes nega-
tive.
AC362A
Liquid tank or front/rear side
of expansion valve’s pipe is
frosted or dewed.High-pressure side is closed
and refrigerant does not flow.
↓
Expansion valve or liquid
tank is frosted.Leave the system at rest
until no frost is present. Start
it again to check whether or
not the problem is caused by
water or foreign particles.
+If water is the cause, ini-
tially cooling is okay. Then
the water freezes causing
a blockage. Drain water
from refrigerant or replace
refrigerant.
+If due to foreign particles,
remove expansion valve
and remove particles with
dry and compressed air
(not shop air).
+If either of the above
methods cannot correct
the problem, replace
expansion valve.
+Replace liquid tank.
+Check lubricant for con-
tamination.
TROUBLE DIAGNOSES
Insufficient Cooling (Cont’d)
HA-82

Changing Engine Coolant=NLLC0108WARNING:
To avoid the danger of being scalded, never change the cool-
ant when the engine is hot.
Ð DRAINING ENGINE COOLANT ÐNLLC0108S011. Set air conditioning system as follows to prevent coolant from
remaining in the system.
a. Turn ignition switch ªONº and set temperature controller to
maximum hot position.
b. Wait 10 seconds before turning ignition switch OFF.
SMA033D
2. Remove lower radiator hose and remove radiator cap to drain
coolant.
3. Remove reservoir tank, drain coolant, then clean reservoir
tank.
Install it temporarily.
+Be careful not to allow coolant to contact drive belts.
SMA379C
SMA073D
4. Remove cylinder block drain plug and air relief plug.
5. Check drained coolant for contaminants such as rust, corro-
sion or discoloration.
If contaminated, flush engine cooling system.
Refer to ªÐFLUSHING COOLING SYSTEMк, LC-39.
Ð REFILLING ENGINE COOLANT ÐNLLC0108S021. Install reservoir tank, radiator drain plug, and cylinder block
drain plug.
+Apply sealant to the thread of cylinder block drain plug.
: 34.3 - 44.1 N´m (3.5 - 4.5 kg-m, 25 - 33 ft-lb)
ENGINE COOLING SYSTEMSR
Changing Engine Coolant
LC-38

REMOVAL AND INSTALLATIONNLLC00631. Remove under cover.
2. Drain coolant by removing lower radiator hose.
3. Disconnect radiator upper and lower hoses.
4. Remove radiator shroud.
5. Disconnect reservoir tank hose.
6. Remove radiator mounting bracket.
7. Remove radiator.
8. After repairing or replacing radiator, install any part removed in reverse order of removal.
When filling radiator with coolant, refer to LC-59, ªChanging Engine Coolantº.
Cooling FanNLLC0064COMPONENTSNLLC0064S01
NLC095
CONTROL SYSTEMNLLC0064S02Cooling fans are controlled by ECM. For details, refer to EC-1203,
ªTROUBLE DIAGNOSIS FOR OVERHEATº.
JLC295B
Changing Engine CoolantNLLC0079WARNING:
To avoid the danger of being scalded, never change the cool-
ant when the engine is hot.
Ð DRAINING ENGINE COOLANT ÐNLLC0079S011. Set air conditioning system as follows to prevent coolant from
remaining in the system.
a. Turn ignition switch ON and set temperature controller to maxi-
mum hot position.
b. Wait 10 seconds before turning ignition switch OFF.
ENGINE COOLING SYSTEMYD
Radiator (Cont'd)
LC-59