air condition NISSAN ALMERA N15 1995 Service Manual

TROUBLEDIAGNOSES
Main Power Supply andGround CircuitCheck
POWER SUPPLY CIRCUIT CHECKFORAICSYSTEM

Check powersupply circuitforairconditioning system.

Refer to"POWER SUPPLYROUTING" inEL section andWiring
Diagram.

Voltmeterterminal

THERMO
CONTROL AMP.CHECK

Check powersupply circuitforthermo controlamp.withignition
switch ON.
1~ Disconnect thermocontrolamp.harness connector.
2. Connect voltmeter fromharness side.
3. Measure voltageacrossterminal No.
CD
and body ground.

Ohmmeter terminal

Turn

AIC
andfanswitches ON.Check bodyground circuitfor
thermo controlamp.
1. Disconnect thermocontrolamp.harness connector.
2. Connect ohmmeter fromharness side.
3. Check forcontinuity betweenterminalNo.@and body
ground.

~I()~

Thermo controlamp.
connector@

Lom ~

RHA341F
~Iv~

Thermo controlamp.
connector
@

;
~~.

LHD 2 \... ~

models:
GIS
Uw-i

RHD [][]

models: GY
Continuity exists:OK
'="RHA342F
EB

CD

EB

@

HA-49
e

Body ground

e

Body ground Voltage
Approx. 12V
Continuity
Yes

•

Circuitcheck
~
AlC switch
connector TROUBLE
DIAGNOSES
Electrical Components Inspection(Cont'd)
BLOWER RESISTOR

Check resistance betweenterminals.

Terminal No.
Resistance

EB
8

@
Approx.1.4-1.6Q

@
(1)

Approx.2.5-2.8Q

@
Approx.0.5-0.6Q

AIC SWITCH

Check continuity betweenterminals ateach switch position.

.
Switch
condition TerminalNo.
Continuity

A/C
EB
e

ON Yes

@
@

OFF No

RHA328F RECIRCULATION SWITCH

Check continuity betweenterminals ateach switch position.

I
I
I
I
I

'-

SHA732E
Terminal
No.
Recirculation
switch condition Continuity

EB
e

ON Yes

(1)
@

OFF No
ON No

@ @

OFF Yes

THERMAL PROTECTOR

THERMO CONTROL AMP.

1. Run engine, andoperate
AIC
system.
2. Connect thevoltmeter fromharness side.
3. Check thermo controlamp.operation showninthe table.

Evaporator outletairtemperature Thermoamp.
Tester
°C CF) operation
Decreasing to2.5 -3.5 (37-38) TurnOFF Approx.
12V
Increasing to4.0 -5.0 (39-41) Turn
On Approx.OV
Temperature
ofcompressor

°C
(OF)

Increasing toapprox. 145-155 (293 -311)
Decreasing toapprox. 130-140 (266 -284) Compressor
operation
Turn OFF
Turn ON

•

HA-63

TROUBLEDIAGNOSES
Electrical Components Inspection(Cont'd)
AIC RELAY

Check continuity betweenterminals
and
CID.

AHA233
Conditions
12V direct current supplybetween terminals
G)

and
@

No current supply
If NG, replace relay. Continuity

YesNo
Dual-pressure
switch connector
SHA522EDUAL-PRESSURE
SWITCH

ON OFF
kPa (bar,
kg/cm
2,
psi)
kPa(bar,
kg/cm
2,
psi)
Low-pressure Increasing
to
Decreasingto

157 -216 (1.57 -2.16,
157-196 (1.57-1.96,

side

1.6-2.2,23 -31)
1.6-2.0,23 -28)

High-pressure Decreasing
to
Increasingto

1,863 -2,256 (18.6-22.6,
2,452-2,844 (24.5-28.4,

side

19-23, 270 -327)
25-29, 356 -412)
Control Linkage Adjustment
MODE CONTROL CABLE

1. For RHO models, turnthemode control knobtothe VENT
position.
For LHO models, turnthemode control knobtothe OEF
position.
2. For RHO models, setthe side linkinthe VENT position by
hand.
For LHO models, setthe side linkinthe OEF position by
hand.
3. Pullan thecable cover inthe direction ofthe arrow, then
clamp it.

After positioning controlcable,checkthatitoperates properly.
WATER COCKCONTROL ROD
• When adjusting watercockcontrol rod,firstdisconnect tem-
perature controlcablefromairmix door lever andthen
adjust control rod.Reconnect temperature controlcable
and readjust it.(Refer toTEMPERATURE CONTROL
CABLE.)

1. Push airmix door lever indirection ofarrow.
2. Pull control rodofwater cockindirection ofarrow soasto
make clearance ofabout 2mm (0.08 in)between endsofrod
and linklever andconnect therod todoor lever.

After connecting controlrod,check itoperates properly.
HA-64

Recoveredlubricant(HA-68)
SERVICE
PROCEDURES
HFC-134a (R-134a)ServiceProcedure (Cont'd)

Set therecoverylrecycling equip-
ment.
Discharge refrigerant into
recoveryl

recycling equipment.
Repair orreplace parts.
Evacuate theunwanted airincharg-
ing hoses.
Evacuating (over25minutes).
Check airtightness.

I

Partial charging
[approx. 200g(7.05 oz)J.
'-1
Repair.
Preliminary refrigerantleakcheck.

,-1

Complete charging[specified
amount -200 g(7.05 oz)J. Repair.

'-2

---C-h-e-c-k-f-o-r -re-f-r-ig-e-r-a-nt-Ie-a-k-s-.
--H
Repair.

--r.---~. '---.---

Check for
AIC
operation and
AIC

cooling performance
Remove servicecouplers from
AIC

service valves.
Recover refrigerant incharging
hoses.
Remove servicetools.
Note: '-1Before charging refrigerant, ensureengineisoff.
'-2 Before checking forleaks, startengine toactivate airconditioning systemthenturnitoff.
Service valvecapsmustbeattached tovalves (toprevent leakage).

HA-67
•

SERVICEPROCEDURES

Maintenance ofLubricant Quantityin
Compressor

The lubricant inthe compressor circulatesthroughthesystem
with therefrigerant. Addlubricant tocompressor whenreplac-
ing any component orafter alarge gasleakage occurred. Itis
important tomaintain thespecified amount.
If lubricant quantityisnot maintained properly,thefollowing
malfunctions mayresult:
• Lack oflubricant: Maylead toaseized compressor
• Excessive lubricant:Inadequate cooling(thermal exchange
interference)

LUBRICANT

Name: Nissan
Ale
System OilType R
Part number:
KLHOO-PAGRO

CHECKING ANDADJUSTING

Adjust thelubricant quantityaccording tothe flowchart shown
below.

START
~

Can lubricant returnoperation beper- Yes
Perform lubricant returnoperation, proceeding asfollows:
formed?
-+

• AIC
system worksproperly. 1.Start engine, andsetthefollowing conditions:
• There isno evidence ofalarge amount •Test condition
of lubricant leakage. Engine
speed:Idlingto1,200 rpm
AlC orAUTO switch: ON
No Blowerspeed:Max.position
Temp. control: Optional [Setsothat Intake airtemperature is
25 to30°C (77to86°F).]
2. Next itemisfor V-5 orV-6 compressor. Connectthemanifold
gauge, andcheck thatthehigh pressure sidepressure is588 kPa
(5.9 bar, 6kg/cm
2,
85psi) orhigher,

If
less than thereference level,attach acover tothe front faceof

~
the
condenser toraise thepressure.
Should thecompressor bereplaced?
3.

Perform lubricant returnoperation forabout 10minutes.

4.
Stop engine.
No Yes
CAUTION:

If
excessive lubricantleakageisnoted, donot perform thelubricant
return operation.

@

(Go tonext page.)
Is there anypart tobe replaced? Yes
Afterreplacing anyof.the following majorcomponents, addthecor-
(Evaporator, condenser,liquidtankorin
-..

rectamount oflubricant tothe system.
case there isevidence ofalarge amount Amountoflubricant tobe added
of lubricant leakage.)

Lubricanttobe added to

No
Part
replaced system
Remarks
Amount oflubricant
mf (Imp IIoz)
Evaporator 75(2.6)

-

Condenser 75(2.6)
-

Liquid tank 5(0.2) Add
ifcompressor isnot
replaced. '1

Carry outthe
AIC
performance test.

~
In
case ofrefrigerant leak 30
(11) Largeleak

-
Small
leak'2

.

*1:Ifcompressor isreplaced. additionoflubricant isincluded inthe
flow chart.
*2: Ifrefrigerant leakissmall, noaddition oflubricant isneeded.

HA-68

SECTION

CONTENTS
MAINTENANCE

MA
•

PRECAUTIONS ANDPREPARATION
3

Supplemental RestraintSystem(SRS)"AIR
BAG" (DualAirBag System) 3
Supplemental RestraintSystem(SRS)"AIR
BAG" (Single AirBag System) 3
Special Service Tools 4
Commercial ServiceTool 4

PRE-DELIVERY INSPECTIONITEMS
5

GENERAL MAINTENANCE 6
PERIODIC MAINTENANCE (Exceptfor
Europe) 7
Engine andEmission ControlService 7
Chassis andBody Service 8
Maintenance UnderSevere DrivingConditions 9

PERIODIC MAINTENANCE (ForEurope) 10

Engine Oil
&
Minor Service 10
Engine andEmission ControlService 11
Chassis andBody Services 12
Maintenance UnderSevere Driving Conditions 13

RECOMMENDED LUBRICANTSANDFLUIDS 14

Lubricants andFluids 14
SAE Viscosity Number 15
Anti-freeze CoolantMixtureRatio 16

~ --ll
GA
I I

ENGINE MAINTENANCE 17

Checking DriveBelts 17
Changing EngineCoolant... 19
Checking CoolingSystem 21
Checking FuelLines 22
Changing FuelFilter 22
Cleaning andChanging AirCleaner Filter 23
Changing EngineOil 24
Changing OilFilter 24
Checking andChanging SparkPlugs 25
Checking IgnitionWires 26Changing
PositiveCrankcase Ventilation
(PCV) Filter 26
Checking EVAPVapor Lines 26
Checking OxygenSensor(02S)orHeated
Oxygen Sensor(H02S) 27

~ --ll
SR
I I

ENGINE MAINTENANCE 28

Checking DriveBelts 28
Changing EngineCoolant... 29
Checking CoolingSystem 31
Checking FuelLines 32
Changing FuelFilter 32
Changing AirCleaner Filter 33
Changing EngineOil 33
Changing OilFilter 34
Changing SparkPlugs(Platinum-tipped type)34
Checking IgnitionWires 35
Checking EVAPVapor
&
Purge Lines 36
Checking HeatedOxygen Sensor(H02S) 37

~_~ ..-JI
CD
I I

ENGINE MAINTENANCE
38
Manifold NutCheck 38
Checking DriveBelt 38
Changing EngineCoolant. 38
Checking CoolingSystem .40
Checking FuelLine .40
Changing AirCleaner Filter 41
Water Draining, FuelFilter Check and
Replacement 41
Changing EngineOil .41
Changing EngineOilFilter 42
Checking InjectionNozzle 43
Checking IdleSpeed .44
Replacing TimingBelt 44

PRE-DELIVERYINSPECTIONITEMS
Shown belowarePre-delivery InspectionItemsrequired forthe new vehicle. Itis recommended that
necessary itemsotherthanthose listedherebeadded, payingdueregard tothe conditions ineach
country.

Perform applicable itemsoneach model. Consult textofthis section forspecifications .

UNDER HOOD-engine off

o
Radiator coolantlevelandcoolant hosecon-
nections forleaks

o
Battery fluidlevel, specific gravityandcondi-
tions ofbattery terminals

o
Drive beltstension

D
Fuel filter forwater ordusts, andfuel lines
and connections forleaks
[] Engine oillevel andoilleaks

D
Clutch andbrake reservoir fluidlevel and
fluid lines forleaks

o
Windshield andrear window washerand
headlamp cleanerreservoir fluidlevel

D
Power steering reservoir fluidlevel andhose
connections forleaks

ON INSIDE ANDOUTSIDE

D
Remove frontspring/strut spacer(Ifapplica-
ble)

D
Operation ofall instruments, gauges,lights
and accessories

o
Operation ofhorn(s), wiperandwasher
[] Steering lockforoperation
[] Check airconditioner forgas leaks

o
Front andrear seats, andseat belts foroper-
ation

n
All moldings, trimsandfittings forfitand
alignment

[J
Allwindows foroperation andalignment

n
Hood, trunklid,door panels forfitand align-
ment

[1
Latches, keysandlocks foroperation

rl
Weatherstrips foradhesion andfit

[l
Headlamp aiming
I~ Tighten wheelnuts(Inc. inner nutsifapplica-
ble)
IJ Tire pressure (Inc.spare tire)

Il
Check frontwheels fortoe-in
IJ Install clock/voltmeter/room lampfuse(If
applicable)
~ Install deodorizing filtertoair purifier (If
applicable)
~ Remove wiperbladeprotectors (Ifapplicable)
UNDER
BODY

o
Manual transmission/transaxle, transferand
differential gearoillevel

D
Brake andfuel lines andoil/fluid reservoirs
for leaks

D
Tighten boltsandnuts ofsteering linkageand
gear box,suspension, propellershaftsand
drive shafts
~ Tighten rearbody boltsandnuts (Models with
wooden bedonly)

ROAD TEST

D
Clutch operation

D
Parking brakeoperation

[J
Service brakeoperation

D
Automatic transmission/transaxle shifttiming
and kickdown
[] Steering controlandreturnability

o
Engine performance

D
Squeaks andrattles

ENGINE OPERATING ANDHOT

D
Adjust idlemixture andspeed (andignition
timing*1)

n
Automatic transmission/transaxle fluidlevel
~ Engine idlingandstop knob operation (Diesel
only)

FINAL INSPECTION

n
Install necessary parts(outside mirror,wheel
covers, seatbelts, mat,carpet ormud flaps)

[1
Inspect forinterior andexterior metaland
paint damage
[] Check forspare tire,jack, tools (wheel
chock), andliterature

n
Wash, cleaninterior andexterior

"1: Not required onmodels withadirect ignition system
~ :Not appiicable tothis model.
•

MA-5

PERIODICMAINTENANCE (ExceptforEurope)

The following tablesshowthenormal maintenance schedule.Depending uponweather andatmospheric
conditions, varyingroadsurfaces, individual drivinghabitsandvehicle usage,additional ormore fre-
quent maintenance mayberequired.

Periodic maintenance beyondthelast period shown onthe tables requires similarmaintenance .
Engine andEmission ControlService

•

Abbreviations: I
=
Inspect andcorrect orreplace asnecessary. R

MAINTENANCE OPERATION

Perform eitheratnumber ofkilometers (miles)
or months, whichever comestirst. km
x1,000
(Miles x1,000)
Months
Replace.
A
=
Adjust, C
=
Clean.

MAINTENANCE INTERVAL
10 20 3040
506070
80
Reference page
(6) (12) (18)
(24)(30)(36)(42)(48)
6 12 18
24
3036
42 48
Underhood andunder vehicle GA
SR
Intake
&
exhaust valveclearance (GA15DE
&
GA16DE engines) SeeNOTE (1)
EM41
-

Drive belts
II
MA 17
24
Engine anti-Ireeze coolant(Ethylene glycolbase)(LLC) RRMA 1929
Engine coolant (Softwater) RRR
R

R R

R
RMA
1929
Cooling system
I
I

I
I
MA 2131
Fuel lines
I
I
MA
22
32
Air cleaner filter(Drypaper type)*
CC
C RC CC RMA 23

-

Air cleaner filter(Viscous papertype)* R
RMA
2333
Engine oil(Use APISE,SF.SGorSH oil)*
R

RRRR R
RR
MA 24
33
Engine oilfilter* R
R R
R
R RRRMA
2433
Fuel filter* R
RMA
22
32
Spark plugs(except Platinum-tipped type) R
RMA
25

-

Spark plugs(platinum-tipped type) Replaceevery100,000 km(60.000 miles). MA

-
34
Ignition wires
I

I
MA
2635
PCV filter* R
RMA
26

-

Vapor lines
I

I
MA
26
36
(Heated) OxygenSensor
I

I

MA 2737
NOTE: (1)
If
valve noiseincreases, checkvalveclearance.

*
Maintenance itemswith
"*"
should beperformed morefrequently accordingto"Maintenance undersevere driv-
ing conditions".

MA-7

PERIODICMAINTENANCE (ExceptforEurope)
Chassis andBody Service

Abbreviations: I
=
Inspect andcorrect orreplace asnecessary, RReplace, L
=
Lubricate.

MAINTENANCE OPERATION MAINTENANCE
INTERVAL
km x1,000 10
20 30 40
5060 70
80Refer-
Perform eitheratnumber ofkilometers (miles)or
ence

months, whichever comesfirst. (Miles
x1,000) (0.6)(6)(12) (18) (24)(30)(36) (42)(48)
page
Months 612 1824
3036 42
48

Underhood andunder vehicle

Brake, clutch
&
automatic transaxlefluidoroil (For
level
&
leaks)* MA-47,
45, 46
Brake fluid* R
RMA-47
Brake booster
vacuum
hoses,connections
&
check
valve
MA-48
Power steering fluid
&
lines (For
level
&
leaks)

""
I'

"
MA-50
Brake, clutch
&
exhaust systems MA-47,
45
Manual transaxle oil(For level
&
leaks)*

"
I'
I' I'

MA-45
MA-50
Steering gear
&
linkage, axle
&
suspension parts
&
drive
shafts* I'
FA-5
RA-4

Outside andInside

Wheel alignment,
If
necessary, rotate
&
balance wheels MA-49
FA-6
Brake pads,disc
&
other brake components* MA-48
Brake linings, drums
&
other brake components MA-49
Locks, hinges
&
hood latch* L'
LL' LL'
LL'
LMA-51
Seat belts, buckles, retractors, anchors
&
adjuster MA-51
BR-11,
Foot brake, parking brake
&
clutch (Forfreeplay, stroke
&
operation)
I'
I'
I'
I'
37
CL-5
Air bag system See
NOTE (1) RS-11

NOTE: (1)Inspect atthe first 10years, andthen every 2years.

*
Maintenance itemswith
"*"
should beperformed morefrequently accordingto"Maintenance UnderSevere Driv-
ing Conditions".
*:
Except
for
Australia models

MA-8

PERIODICMAINTENANCE (ExceptforEurope)
Maintenance UnderSevere DrivingConditions

The maintenance intervalsshownonthe preceding pagesarefornormal operating conditions. Ifthe
vehicle ismainly operated undersevere drivingconditions asshown below, morefrequent maintenance •
must beperformed onthe following itemsasshown inthe table. •

SEVERE DRIVING CONDITIONS

A -Driving underdustyconditions
B -Driving repeatedly shortdistances
C -Towing atrailer orcaravan
D -Extensive idling
E -Driving inextremely adverseweather con-
ditions orinareas where ambient temper-
atures areeither extremely lowor
extremely high F
-Driving inhigh humidity areasorinmoun-
tainous areas
G -Driving inareas usingsaltorother corro-
sive materials
H -Driving onrough and/or muddy roadsorin
the desert
- Driving withfrequent useofbraking orin
mountainous areas
Driving
condition Maintenance
item Maintenance
operation Maintenance
interval Reference
page
GA
SR

A Aircleaner filter
Dry paper type
Clean MA
23
-

All types ReplaceMorefrequently MA
2333
PCV filter Replace MA26
-

A BC D
Engineoil
&
oil filter ReplaceEvery
5,000km
MA2424
(3,000 miles) or3months
A E Fuel
filter Replace
Every20,000 km MA
2232
F Brakefluid Replace(12,000
miles)or12 months
MA-47
C
H
Automatic

&
manual transaxle Replace Every40,000 km
MA-46,45
oil (24,000
miles)or24 months
G
H
Steering
gear
&
linkage, axle
&
Check
Every10,000 km MA-50
suspension parts
&
drive shafts
(6,000miles) or6months FA-5,
7
RA-4
A C G
H

I
Brake pads,discs
&
other brake Check Every
5,000km
MA-48
components (3,000
miles) or3months
A C
G
H

1
Brake
linings, drums
&
other
Check Every
10,000 km
MA-49
brake components (6,000
miles) or6months
G Lock,
hinges
&
hood latch Lubricate
Every5,000km
MA-51
(3,000 miles) or3months
Maintenance operation:Check
=
Check. Correct orreplace
if
necessary.

MA-9