1995 NISSAN ALMERA N15 cooling

SAT620EDISASSEMBL
Y

5. Set manual shaftto"P" position.
6. Remove inhibitorswitch.

Waste material

Oil
pan
SAT013D
7.
Remove oilpan andoilpan gasket.

• Donot reuse oilpan bolts.

8. Check foreign materials inoil pan tohelp determine cause•
of malfunction. Ifthe fluid isvery dark, smells burned, or
contains foreignparticles, thefrictional material(clutches,
band) mayneed replacement. Atacky filmthat willnotwipe
clean indicates varnishbuildup.Varnish cancause valves,
servo andclutches tostick andcaninhibit pumppressure.

• Iffrictional materialisdetected, replaceradiator afterrepair
of AlT. Refer toLC section ("Radiator", "ENGINECOOLING
SYSTEM").
SAT711D
9.
Remove controlvalveassembly according tothe following
procedures.
a. Remove controlvalveassembly mountingbolts@,
CID,
@

and @.

AT-51

CONTENTS(Cont'd.)

Component PartsLocation 248
Wiring Diagram -NATS - 249
Trouble Diagnoses 251

LOCATION OFELECTRICAL UNITS
266
Engine Compartment 266
Passenger Compartment 267

HARNESS LAyOUT
269
How toRead Harness Layout... 269
Outline 270
Engine Control Harness 271
Engine RoomHarness 274
Main Harness '" 280
Body Harness :284
Body No.2 Harness 292
Engine Harness 294Air
Bag Harness 297
Room LampHarness 298
Back DoorHarness 299
Front DoorHarness (LHside) 300
Front DoorHarness (RHside) 302
Rear Door Harness 304

SUPER MULTIPLE JUNCTION
(SMJ) Foldout
Terminal Arrangement Foldout

FUSE BLOCK -Junction Box
(JIB)
Foldout
Terminal Arrangement Foldout

ELECTRICAL UNITS
Foldout
Terminal Arrangement Foldout

JOINT CONNECTOR
(J/C)
Foldout
Terminal Arrangement Foldout

WIRING DIAGRAM REFERENCE CHART
COOLING SYSTEM
LC
SECTION
ECCS (Ignition syslem) ECSECTION
AUTOMATIC TRANSAXLECONTROLSYSTEM ATSECTION
ANTI-LOCK BRAKESYSTEM BRSECTION
SRS "AIR BAG" RSSECTION
HEATER ANDAIRCONDITIONER HASECTION

•

GROUNDDISTRIBUTION
GROUND CONNECTTO CONN.
NO. CELLCORD
E37/E51 AIRBAG DIAGNOSIS SENSORUNIT(Single
E108 RS-SRS
air bag system)
BRAKE FLUIDLEVEL SWITCH E2EL-WARN
CLEARANCE LAMPLH E50EL-TAILIL
CLEARANCE LAMPRH E33EL-TAILIL
COOLING FANMOTOR-1 (1-modetype) E45 EC-COOLIFHA-A/C
COOLING FANMOTOR-1 (2-modetype-GA
E66 EC-COOLIF
HA-A/C
engine forEurope)
COOLING FANMOTOR-1 (2-modetype-ex-
E46 EC-COOLIF
HA-A/C
eept GAengine forEurope)
COOLING FANMOTOR-2 (1-modetype)
E39 EC-COOLIFHA-A/C

-

COOLING FANMOTOR-2 (2-modetype-GA
E67 EC-COOLiF
HA-A/C
engine forEurope)
COOLING FANMOTOR-2 (2-modetype-ex-
E40 EC-COOLIFHA-A/C
eept GAengine forEurope)
COOLING FANRELAY-1 E12
EC-COOLIFHA-A/C
COOLING FANRELAY-2 E17
EC-COOLIFHA-A/C
COOLING FANRELAY-3 E18EC-COOLIF
HA-A/C
DAYTIME LIGHTUNIT E119EL-DTRL
FRONT FOGLAMP LH E52EL-F/FOG
FRONT FOGLAMP RH
E36EL-F/FOG
FRONT TURNSIGNAL LAMPLH E53EC-TURN
FRONT TURNSIGNAL LAMPRH E32EC-TURN
FRONT WIPERANDWASHER SWITCH E113
EL-WIPER
FUEL FILTER SWITCH
E5EL-WARN
HEADLAMP AIMINGMOTOR UNITLH E48
EL-AIM
HEADLAMP AIMINGMOTOR UNITRH E35 EL-AIM
HEADLAMP LH E49EL-H/LAMP
EL-DTRL
HEADLAMP RH E34EL-H/LAMP
EL-DTRL
HEADLAMP WIPERMOTOR LH E44
EL-HLC
HEADLAMP WIPERMOTOR RH E41EL-HLC
IACV-FICD SOLENOID VALVE(LHDmodels
.

E65 EC-A/CCUTHA-A/C
with CD20 engine)
INHIBITOR SWITCH E222EC-PNP/SWAT-A
IT EL-START
NEUTRAL POSITION SWITCH E220EC-PNP/SW
POWER STEERING OILPRESSURE SWITCH
E3 EC-PST/SW
(RHO models withgasoline engine)
REAR FOGLAMP RELAY E20EL-R/FOG
REAR WIPER ANDWASHER SWITCH E112EL-WIP/R
REAR WIPER RELAY E15EL-WIP/R
SIDE TURN SIGNAL LAMP(Driver side) E1 EL-TURN
WASHER FLUIDLEVEL SWITCH E30EL-WARN
EL-20

LOCATIONOFELECTRICAL UNITS
Engine Compartment
Front wiper motor (LHDmodels)
Fusible linkand relay box ASS
relay boxand actuator (RHOmodels)
Front wiper motor (RHOmodels)
Glow relay(CDengine models)
Fusible linkand fuse box
Cooling fan
relay-2 Rear
foglamp relay
• Cooling fanrelay-3 (SRengine
AT models andCDengine)
Rear window defogger relay
(GA engine withdaytime lightsystem)
EL-266 Fusible
linkand fuse box
Fusible linkand relay box
Rear window defogger relay
(CD engine withdaytime lightsystem)
HEL149

CONTENTS(Cont'd.)

CONSULT Reference ValueinData Monitor
Mode 74
Major Sensor Reference GraphinData
Monitor Mode 76
ECM Terminals andReference Value 78

TROUBLE DIAGNOSIS FORPOWER SUPPLY 88

Main Power Supply andGround Circuit.. 88

TROUBLE DIAGNOSIS FORDTC11 94

Camshaft PositionSensor(CMPS) 94

TROUBLE DIAGNOSIS FORDTC
12 101
Mass AirFlow Sensor (MAFS) 101

TROUBLE DIAGNOSIS FORDTC
13 108
Engine Coolant Temperature Sensor(ECTS) 108

TROUBLE DIAGNOSIS FORDTC
21 113
Ignition Signal 113

TROUBLE DIAGNOSIS FORDTC
34 119
Knock Sensor (KS) 119

TROUBLE DIAGNOSIS FORDTC
41 124
Intake AirTemperature Sensor(IATS) 124

TROUBLE DIAGNOSIS FORNON-DETECTABLE
ITEMS , '"
.128
Throttle Position Sensor 128
Vehicle SpeedSensor (VSS) 133
Start Signal 138
Injector 141
Fuel Pump 145
Idle AirControl Valve(IACV) -Auxiliary Air
Control (AAC)Valve 150
Cooling FanControl 156
Power Steering OilPressure Switch 169
Park/Neutral PositionSwitch 173
EVAP Canister PurgeControl Solenoid Valve179
EGR Valve andEVAP Canister PurgeControl
Solenoid Valve 183
Heated Oxygen Sensor(H02S) 189
Oxygen Sensor(02S) 194
Valve Timing Control (VTC) 198
IACV-FICD SolenoidValve 204
Electrical LoadSignal 211
Torque Converter ClutchSolenoid Valve 219
MIL
&
Data LinkConnectors 223

SR
ENGINE ANDEMISSION CONTROL OVERALL
SYSTE M
226
Circuit Diagram 226
System Diagram 227
ECCS Component PartsLocation 228
Vacuum HoseDrawing 231
System Chart... 232
ENGINE
ANDEMISSION BASICCONTROL
SYSTEM DESCRiPTION
233
Multipart FuelInjection (MFI)System 233
Distributor Ignition
(01)
System 235
Air Conditioning CutControl 236
Fuel CutControl (atnoload
&
high engine
speed) 237

EVAPORATIVE EMISSIONSYSTEM
238
Description 238
Inspection 238

POSITIVE CRANKCASE VENTILATION
240
Description 240
Inspection 240

BASIC SERVICE
PROCEDURE 241
Fuel Pressure Release 241
Fuel Pressure Check 241
Fuel Pressure Regulator Check 242
Injector Removal andInstallation 242
Idle Speed/Ignition Timing/IdleMixtureRatio
Adjustment 243

ON-BOARD DIAGNOSTIC SYSTEMDESCRIPTION ..250

Malfunction IndicatorLamp(MIL) 250
CONSULT 254

TROUBLE DIAGNOSIS -General Description
264
Introduction 264
Work Flow 265
Description forWork Flow 266
Diagnostic Worksheet 267
Diagnostic TroubleCode(DTC) Chart 268
Fail-Safe Chart 270
Basic Inspection 271
Symptom MatrixChart. 274
CONSULT Reference ValueinData Monitor
Mode 277
Major Sensor Reference GraphinData
Monitor Mode 279
ECM"Terminals andReference Value 281

TROUBLE DIAGNOSIS FORPOWER SUPPLY
286
Main Power Supply andGround Circuit.. 286

TROUBLE DIAGNOSIS FORDTC
11 289
Camshaft PositionSensor(CMPS) 289

TROUBLE DIAGNOSIS FORDTC
12 293
Mass AirFlow Sensor (MAFS) 293

TROUBLE DIAGNOSIS FORDTC
13 297
Engine Coolant Temperature Sensor(ECTS) 297

TROUBLE DIAGNOSIS FORDTC
21 301
Ignition Signal 301

TROUBLE DIAGNOSIS FORDTC
34 306
Knock Sensor (KS) 306

CONTENTS(Cont'd.)
TROUBLE DIAGNOSIS FORDTC
43 309
Throttle Position Sensor 309

TROUBLE DIAGNOSIS FORNON-DETECTABLE
ITEMS
314
Vehicle SpeedSensor (VSS) 314
Start Signal 317
Exhaust GasRecirculation (EGR)Valveand
EVAP Canister PurgeControl 319
Injector 324
Fuel Pump 327
Idle AirControl Valve(IACV)-Air Regulator 332
Idle AirControl Valve(IACV) -Auxiliary Air
Control (AAC)Valve :335
Idle AirControl Valve(IACV)-FICD Solenoid
Valve '"339
Cooling FanControl 343
Power Steering OilPressure Switch 354
Park/Neutral PositionSwitch 357
Heated Oxygen Sensor(H02S) 362
Torque
Converter
ClutchSolenoid Valve 367
Malfunction IndicatorLamp(MIL)
&
Data Link
Connector (DLC)forCONSULT 370

CD
INJECTION SYSTEM
371

VE.TYPE INJECTION PUMP
372
Removal 372
Installation 373
Adjustment 374

INJECTION NOZZLE
376
Removal andInstallation 376
Disassembly 376
Inspection 377
Cleaning 377
Assembly 378
Test andAdjustment 379
FUEL
SYSTEM CHECK
381
Priming PumpCheck 381
Fuel CutSolenoid Valve 381

CRANKCASE VENTILATION SYSTEM
382
Ventilation Hose 382

ENGINE ANDEMISSION CONTROLOVERALL
SYSTEM
383
Component PartsLocation 383
System Diagram 384
Circuit Diagram ,385
System Chart. 386

TROUBLE DIAGNOSES
387
ECM Terminals andReference Values 387
Quick-glow System 390
Partial LoadAdvance (PLA)Control 399
Cooling FanControl 404
Air Conditioner CutControl 413
Fuel CutControl 416

GA

SERVICE DATAANDSPECIFICATIONS
(505).417
General Specifications 417
Inspection andAdjustment.. 417

SR
SERVICE DATAANDSPECIFICATIONS
(505).418
General Specifications 418
Inspection andAdjustment.. .418

CD
SERVICE DATAANDSPECIFICATIONS
(505).419
VE-type Injection Pump 419
Injection Nozzle 419
•

When youread wiring diagrams:
• Read GIsection, "HOWTOREAD WIRING DIAGRAMS" .
• See Elsection, "POWER SUPPLYROUTING" forpower distribution circuit.
When youperform troublediagnoses, readGIsection, "HOWTOFOllOW FLOWCHART INTROU-
BLE DIAGNOSES" and"HOW TOPERFORM EFFICIENT DIAGNOSIS FORANELECTRICAL INCIDENT".

ENGINEANDEMISSION BASICCONTROL SYSTEMDESCRIPTION
System Chart

I
Camshaft positionsensor

'1
Fuel
injection
&
mixture
ratio control Injectors
Knock sensor
Distributorignitionsystem Powertransistor
Mass airflow sensor
Engine coolant temperature
sensor
Ignition switch Idle
aircontrol system
Fuel pump control
*4

IACV-AAC valve(WithFICD
solenoid valve)
Fuel pump relay

•

'5

Throttle
positionsensor
Neutral positionllnhibitor
switch
Air conditioner switch ECM
(ECCS
control
module)
2

Oxygen sensormonitor

&
On-board diagnostic system

5
Torque converter clutchcan-
cel solenoid valvecontrol
(A/T models) Malfunction
indicatorlamp
(On theinstrument panel)
Torque converter clutchsole-
noid valve
VTC solenoid valve

*6
Air
conditioner relays
Cooling
fanrelay
EVAP canister purgecontrol
solenoid valve
Cooling
fancontrol
Air conditioner cutcontrol
during acceleration
Valve timing control
EVAP canister purgecontrol

7

6

Power
steering oilpressure
switch Battery
voltage
Intake airtemperature sensor

*3

I

Vehicle speedsensor

*2

I
Oxygen sensor

8
'8

Electrical load
• Rear defogger switch
• Lighting switch EGR

&
EVAP canister purge
control EGR
valve
&
EVAP canister
purge control solenoid valve
*1: Except forEurope andIsrael
*2: Heated oxygen sensor(ForEurope andIsrael, andAustralia A/Tmodels)
Oxygen sensor(Except forEurope andIsrael, andAustralia A/Tmodels)
*3: For Australia
*4: IACV-AAC valveandIACV-FICD solenoidvalve(ForEurope andIsrael)
IACV-AAC valve(withFICDsolenoid valve)(Except forEurope andIsrael)
'5: Except forEurope
*6: GA16DE exceptforEurope andIsrael
*7: GA16DE MITmodels exceptforEurope, IsraelandAustralia
*8: For Europe andIsrael andAustralia, andGA15DE MITmodels

EC-23

BASICSERVICE PROCEDURE
Idle Speedllgnition TiminglldleMixtureRatio
Adjustment
PREPARATION
• Make surethatthefollowing partsarein
good order.
(1) Battery
(2) Ignition system
(3) Engine oiland coolant levels
(4) Fuses
(5) ECM harness connector
(6) Vacuum hoses
(7) Airintake system
(Oil filler cap,oillevel gauge, etc.)
(8) Fuel pressure
(9)' Engine compression
(10) Throttle valve
(11) EGR valve operation -For Europe and
Israel andAustralia, andGA15DE M/Tmod-
els
Overall inspection sequence

INSPECTION
(12)
Evaporative emissionsystem
• On models equipped withairconditioner,
checks shouldbecarried outwhile theair
conditioner is"OFF".
• On models equipped withautomatic
transaxle, whenchecking idlespeed, ignition
timing andmixture ratio,checks shouldbe
carried outwhile shiftlever isin
"N"
position.
• When measuring
"CO"
percentage, insert
probe morethan40cm (15.7 in)into tailpipe .•
• Turn offheadlamps, heaterblower, rear
defogger.
• Keep frontwheels pointed straight ahead.
• Make thecheck afterthecooling fanhas
stopped.

Perform diagnostic testmode
1/

(Self-diagnostic results).
Check
&
adjust ignition timing.
Check
&
adjust idlespeed. NG
Repair orreplace.
Check oxygen sensor*1 function.

OK
Check
oxygen sensor*1 har-
ness.
Check CO%.

NG
NG
Repair orreplace harness.
OK Replace oxygensensor*1.
INSPECTION END Check
emission controlparts NGCheck oxygen sensor*1 function. OK
and repair orreplace ifneces-
sary.
*1: Heated oxygen sensor(ForEurope andIsrael, andAustralia AfTmodels)
Oxygen sensor(Except forEurope andIsrael, andAustralia AfTmodels)

EC-35