1995 NISSAN ALMERA N15 diagram

HOWTOFOLLOW FLOWCHART INTROUBLE DIAGNOSES
NOTICE

The flow chart indicates workprocedures requiredtodiagnose
problems effectively. Observethefollowing instructions before
diagnosing.
1) Use theflow chart afterlocating probable causesofaprob-
lem following the"Preliminary Check",the"Symptom
Chart" orthe "Work Flow".
2) After repairs, re-check thattheproblem hasbeen com-
pletely eliminated.
3) Refer toComponent PartsandHarness Connector Location
for the Systems described ineach section foridentificationl
location ofcomponents andharness connectors.
4) Refer tothe Circuit Diagram forQuick Pinpoint Check.
If you must check circuit continuity betweenharnesscon-
nectors inmore detail, suchaswhen asub-harness isused,
refer toWiring Diagram ineach individual sectionandHar-
ness Layout inEL section foridentification ofharness con-
nectors.
5) When checking circuitcontinuity, ignitionswitchshould be

"OFF" .

6) Before checking voltageatconnectors, checkbattery volt-
age.
7) After accomplishing theDiagnostic Procedures andElectri-
cal Components Inspection,makesurethatallharness con-
nectors arereconnected asthey were.
•

Example
m ..
-=-=~-----------~

~

~i5
[YJ

SGI561
~

OISCONNECT

18
SGI562
INSPECTION
START
CHECK POWER SUPPLY.
1) Turn ignition switch"ON".
2) Check voltage between terminal
@

and ground.

~Ba"ery voltageshouldexist.

OK

2

Ii)
CHECK GROUND CIRCUIT.
1) Turn ignition switch"OFF"
2) Disconnect camshaftpositionsensor
harness connector.
3) Check resistance betweenterminal

@
and ground.

Resistance: Approximately
on

OK
GI-29 NG
Check
thefollowing
items. 1) Harness continuity
between camshaft
position sensorand
battery
2) ECCS relay-1
3) "SR" fusible link
4) Power source for

ECM

5) Ignition switch
Check thefollowing
items. 1) Harness continuity
between camshaft
position sensorand
ground
2) Ground circuitfor

ECM

SG1800-C

HEATER
&

AIR CONDITIONER
SECTION
HA
CONTENTS
When youread wiring diagrams:
• Read GIsection, "HOWTOREAD WIRING DIAGRAMS" .
• See ELsection, "POWER SUPPLYROUTING" forpower distribution circuit.
When youperform troublediagnoses, readGIsection, "HOWTOFOLLOW FLOWCHART
IN TROUBLE DIAGNOSES" and"HOW TOPERFORM EFFICIENT DIAGNOSIS FORAN
ELECTRICAL INCIDENT".
PRECAUTIONS
ANDPREPARATION 2

Supplemental RestraintSystem(SRS)"AIR
BAG" (DualAirBag System) 2
Supplemental RestraintSystem(SRS)"AIR
BAG", (Single AirBag System) 2
Precautions forWorking withHFC-134a (R-
134a) 3
General Refrigerant Precautions 3
Precautions forRefrigerant Connection 4
Precautions forServici ngCompressor. ..5
Special Service Tools 5
HFC-134a (R-134a)ServiceToolsand
Equipment. 6
Precautions forService Equipment 8

DESCRIPTION 10

Refrigeration Cycle .10
Component Layout 11
Discharge AirFlow 12
Control Operation 13

TROUBLE DIAGNOSES 14

Contents 14Wiring
Diagram -HEATER - 36
Wiring Diagram -
AIC - 38
SERVICE PROCEDURES 66

HFC-134a (R-134a)ServiceProcedure 66
Maintenance ofLubricant Quantityin
Compressor 68
Refrigerant Lines 70
Compressor Mounting 75
Belt Tension 76
Fast IdleControl Device(FICO) 76
Compressor -Model DKV-11D andDKV-14D
(ZEXEL make) 77
Compressor Clutch 77
Thermal Protector 80
Compressor -Model CR-14 (Calsonic make)80
Compressor Clutch ..80
Thermal Protector 82
Ventilation AirFilter 83

SERVICE DATAANDSPECIFICATIONS (SDS)84

General Specifications 84
Inspection andAdjustment 84

•

TROUBLEDIAGNOSES
Contents
How toPerform TroubleDiagnoses forQuick andAccurate Repair HA-15
Operational Check HA-16
Symptom Chart HA-18
Preliminary Check HA-20
PRELIMINARY CHECK1

(A/C
does notblow coldair.) HA-20
PRELIMINARY CHECK2
(Air outlet doesnotchange.) HA-21
PRELIMINARY CHECK3
(Noise) HA-22
PRELIMINARY CHECK4
(I nsufficient heating) HA-23
Performance TestDiagnoses HA-24
INSUFFICIENT COOLING HA-24
Performance Chart HA-26
TEST CONDITION HA-26
TEST READING HA-26
Trouble Diagnoses forAbnormal Pressure HA-27
Harness Layout. HA-31
Circuit Diagram -Air Conditioner HA-34
Wiring Diagram -HEATER - HA-36
Wiring Diagram -AIC - HA-38
Main Power Supply andGround CircuitCheck HA-49
Diagnostic Procedure1
(SYMPTOM: Blowermotordoesnotrotate.) HA-50
Diagnostic Procedure2
(SYMPTOM: Intake doordoes notchange.) HA-52
Diagnostic Procedure3
(SYMPTOM: Magnetclutchdoesnotoperate when
A/C
switch andfanswitch areON.)
- For GAand SRengines HA-54
- For CDengine HA-59
Electrical Components Inspection HA-62
Control Linkage Adjustment HA-64
System Description HA-65
HA-14

TROUBLEDIAGNOSES
How toPerform TroubleDiagnoses forQuick
and Accurate Repair
WORK FLOW
_________C_H_EI_K_I_N
I
+-1
Reference item

.--------------,

ELIMINATE GOODSYSTEM(S)/PART(S).
INVESTIGATE
IT-EMSYOUSHOULD CARRYOUT
RELATED TOEACH SYMPTOM.
CHECK MAINPOWER SUPPLY ANDGROUND CIR-
CUITS. LISTEN
TOCUSTOMER COMPLAINT ANDCONFIRM BY
PERFORMING OPERATIONAL CHECK. Operational
check

+-
(Refer toHA-16.)
Symptom Chart(Refer
to HA-18.)
Symptom Chart

+-
(Refer toHA-18.)

+-
Preliminary Check
(Refer toHA-20.)

+-
MainPower Supply and
Ground CircuitCheck
(Refer toHA-49.)
Harness layout(Referto

+-
HA-31.)
Malfunctioning
part(s)
Malfunctioning
harness( es)/
connector(s)
ELIMINATE
GOODPART(S)/HARNESS(ES)/
CONNECTOR(S) ELECTRICALLY.
•
Diagnostic Proce-
dure(s) (Referto
HA-50.)
• Circuit Diagram
(Refer toHA-34.)
NG
I

REPAIR. INSPECT
EACHCOM-
PONENT.
FINAL CHECK Electrical
Components

+-
Inspection
(Refer toHA-62.)

•

CHECK OUT
HA-15

TROUBLEDIAGNOSES
Circuit Diagram -Air Conditioner
DUAL-PRESSURE
SWITCH
AIR

CONDITIONER
RELAY
THERMO
CONTROL
AMP.

IT

o

f-

U1

H

~

IT

W
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f-

AIC

SWITCH

M

BLOWER
MOTOR

FAN
RESISTOR

GE
C

FAN SWITCH
OFF1234
GA

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uo

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RECIRCULA
nON
SWITCH

1

AIT models

MIT
models
For Europe andIsrael
Except
@

GA engine models
Except
f
or Europe, Israe 1and Austra 1ia
GA eng ine
f
or Europe, Israe1and Austra 1ia and SReng Ine
Except
@

LHD
AIT
models forEurope without daytIme lightsystem
Except


@
41.
@
44

@:

@:

@:
@:
@:
@:
@:

@:

:

@:

*1

To
illumination
system

HHA001
HA-34

TROUBLEDIAGNOSES
Circuit Diagram -Air Conditioner (Cont'd)

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COOLING COOLING
FAN FAN
MOTOR-l MOTOR-2

@ @

COOLING
FAN
RELAY-l

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ECM(ECCS
CONTROL
MODULE)

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ECM(ECCS
CONTROL
MODULE)

A

L ~

(SR20DE engine
AIT
models)
L
~

(GA engine except forAustralia
and SR20DE engine
MIT
models)

•

M

COOLING

FAN

RELAY-2

@

COOLING

FAN

MOTOR-2

@

COOLING
FAN
RELAY-l
COOLING COOLING
FAN FAN
MOTOR-l MOTOR-2

@
@

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ECMIECCS
CONTROL MODULE)

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ECM(ENGINE
CONTROL MODULE)

A

Z


LL

B
(!)~

ZI

HCI:
-10
01-

00

U::E

L
J

(C020 engIne) (GAI6DE
engIneforAustralIa)

HHA014

HA-35

TROUBLEDIAGNOSES
Wiring Diagram -HEATER -

HA-HEATER-01

<0:
LHOmodels
Refer toEL-POWER.
(8):
RHOmodels

@:
ForEurope andIsrael

@:
Except@

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IN31
•

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Refer
tolast page
(Foldout page).

~
HHA012
HA-36