1995 NISSAN ALMERA N15 engine wiring

WARNINGLAMPSANDBUZZER
Warning Lamps/Wiring Diagram-WARN -
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EL-WARN-07

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WIPERANDWASHER
Front Wiper andWasher/Wiring Diagram
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HEL088
EL-164

REARWINDOW DEFOGGER ANDDOOR MIRROR DEFOGGER
Wiring Diagram -DEF -
LHD MODELS WITHDAYTIME LIGHTSYSTEM

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HEL136

EL-231

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".

STEP
STEP I
STEP II
STEP III
STEP IV
STEP V
STEP VI
STEP VII
TROUBLE
DIAGNOSIS -General oescrip_ti_on
I_G_A_'

Description forWork Flow

DESCRIPTION
Get detailed information abouttheconditions andtheenvironment whentheincident/symptom occurred
using the"DIAGNOSTIC WORKSHEET" asshown onthe next page.
Before confirming theconcern, checkandwrite down (printoutusing CONSULT) theDiagnostic Trouble
Code (DTC), thenerase thecode. TheDTC canbeused when duplicating theincident atSTEP III
&
IV.
Study therelationship betweenthecause, specified byDTC, andthesymptom described bythe customer.
(The "Symptom MatrixChart" willbeuseful. RefertoEC-72.)
Try toconfirm thesymptom andunder whatconditions theincident occurs.
The "DIAGNOSTIC WORKSHEET" isuseful toverify theincident. ConnectCONSULT tothe vehicle inDATA
MONITOR (AUTOTRIG)modeandcheck realtime diagnosis results.
If the incident cannotbeverified, performINCIDENT SIMULATION TESTS.RefertoGI section.
If the malfunction codeisdetected, skipSTEP IVand perform STEPV.
Try todetect theDiagnostic TroubleCode(DTC) bydriving in(or performing) the"DTC CONFIRMATION
PROCEDURE". Checkandread theDTC byusing CONSULT.
During theDTC verification, besure toconnect CONSULT tothe vehicle inDATA MONITOR (AUTOTRIG)
mode andcheck realtime diagnosis results.

If
the incident cannotbeverified, performINCIDENT SIMULATION TESTS.RefertoGI section.
In case the"DTC CONFIRMATION PROCEDURE"isnot available, performthe"OVERALL FUNCTION
CHECK" instead.TheDTC cannot bedisplayed bythis check, however, thissimplified "check"isan effec-
tive alternative.
The "NG" result ofthe "OVERALL FUNCTIONCHECK"isthe same asthe DTC detection.
Take theappropriate actionbasedonthe results ofSTEP Ithrough IV.
If the malfunction codeisindicated, proceedtoTROUBLE DIAGNOSIS FORDTCXX.
If the normal codeisindicated, proceedtothe BASIC INSPECTION. RefertoEC-65. Thenperform inspec-
tions according tothe Symptom MatrixChart.RefertoEC-72.
Identify wheretobegin diagnosis basedonthe relationship studybetween symptom andpossible causes.
Inspect thesystem formechanical binding,looseconnectors orwiring damage using(tracing) "Harness
Layouts".
Gently shaketherelated connectors, components orwiring harness withCONSULT setin"DATA MONITOR
(AUTO TRIG)" mode.
Check thevoltage ofthe related ECMterminals ormonitor theoutput datafrom therelated sensors with
CONSULT. RefertoEC-74.
The "DIAGNOSTIC PROCEDURE" inEC section contains adescription basedonopen circuit inspection. A
short circuit inspection isalso required forthe circuit checkinthe DIAGNOSTIC PROCEDURE. Fordetails,
refer toGI section ("HOWTOPERFORM EFFICIENT DIAGNOSIS FORANELECTRICAL INCIDENT","Circuit
Inspection' ').
Repair orreplace themalfunction parts.
Once youhave repaired thecircuit orreplaced acomponent, youneed torun theengine inthe same condi-
tions andcircumstances whichresulted inthe customer's initialcomplaint.
Perform the"DTC CONFIRMATION PROCEDURE"andconfirm thenormal code(Diagnostic troublecodeNo.
55) isdetected. Ifthe incident isstill detected inthe final check, perform STEPVIby using adifferent
method fromtheprevious one.
Before returning thevehicle tothe customer, besure toerase theunnecessary (alreadyfixed)DTCinECM.
Refer toEC-46.

EC-60

TROUBLEDIAGNOSIS -General Description

Goto
(J.

Adjust ignition timingby
turning distributor.

No
NG

(Go to
@
onnext page.)

OK
CONNECT
CONSULTTOTHE VEHICLE.

Connect "CONSULT" tothe data link
connector forCONSULT andselect
"ENGINE" fromthemenu. Referto

EC-36
DOES ENGINE START?
BEFORE
STARTING

1. Check service records forany recent
repairs thatmay indicate arelated •
problem, orthe current needfor
scheduled maintenance.
2. 9pen engine hoodandcheck thefol.
lowing:
• Harness connectors forimproper con-
nections
• Vacuum hosesforsplits, kinks,or
improper connections
• Wiring forimproper connections,
pinches, orcuts

CHECK IGNITION TIMING.

1. Warm upengine sufficiently.
2. Stop engine anddisconnect throttle
position sensorharness connector.
3. Start engine.
4. Check ignition timingatidle using
timing light.

Ignition liming:

Refer toEC-36.
Basic
Inspection
Precaution:
Perform BasicInspection withoutelectrical or
mechanical loads

applied;
• Headlamp switchisOFF,
• Air conditioner switchisOFF,
• Rear defogger switchisOFF,
• Steering wheelisin the straight-ahead position,etc.

m

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EC-65

STEP
STEP I
STEP II
STEP III
STEP IV
STEP V
STEP VI
STEP VII
TROUBLE
DIAGNOSIS -General Description
Description forWork Flow

DESCRIPTION
Get detailed information abouttheconditions andtheenvironment whentheincident/symptom occurred
using the"DIAGNOSTIC WORKSHEET" asshown onthe next page.
Before confirming theconcern, checkandwrite down (printoutusing CONSULT) theDiagnostic Trouble
Code (DTC), thenerase thecode. TheDTC canbeused when duplicating theincident atSTEP
1/1
&
IV.
Study therelationship betweenthecause, specified byDTC, andthesymptom described bythe customer.
(The "Symptom MatrixChart" willbeuseful. RefertoEC-274.)
Try toconfirm thesymptom andunder whatconditions theincident occurs.
The "DIAGNOSTIC WORKSHEET" isuseful toverify theincident. ConnectCONSULT tothe vehicle inDATA
MONITOR (AUTOTRIG)modeandcheck realtime diagnosis results.
If the incident cannotbeverified, performINCIDENT SIMULATION TESTS.RefertoGI section.
If the malfunction codeisdetected, skipSTEP IVand perform STEPV.
Try todetect theDiagnostic TroubleCode(DTC) bydriving in(or performing) the"DTC CONFIRMATION
PROCEDURE". Checkandread theDTC byusing CONSULT.
During theDTC verification, besure toconnect CONSULT tothe vehicle inDATA MONITOR (AUTOTRIG)
mode andcheck realtime diagnosis results.
If the incident cannotbeverified, performINCIDENT SIMULATION TESTS.RefertoGI section.
In case the"DTC CONFIRMATION PROCEDURE"isnot available, performthe"OVERALL FUNCTION
CHECK" instead.TheDTC cannot bedisplayed bythis check, however, thissimplified "check"isan effec-
tive alternative.
The "NG" result ofthe "OVERALL FUNCTIONCHECK"isthe same asthe DTC detection.
Take theappropriate actionbasedonthe results ofSTEP Ithrough IV.
If the malfunction codeisindicated, proceedtoTROUBLE DIAGNOSIS FORDTCXX.
If the normal codeisindicated, proceedtothe BASIC INSPECTION. RefertoEC-271. Thenperform inspec-
tions according tothe Symptom MatrixChart.RefertoEC-274.
Identify wheretobegin diagnosis basedonthe relationship studybetween symptom andpossible causes.
Inspect thesystem formechanical binding,looseconnectors orwiring damage using(tracing) "Harness
Layouts".
Gently shaketherelated connectors, components orwiring harness withCONSULT setin"DATA MONITOR
(AUTO TRIG)" mode.
Check thevoltage ofthe related ECMterminals ormonitor theoutput datafrom therelated sensors with
CONSULT. RefertoEC-277.
The "DIAGNOSTIC PROCEDURE" inEC section contains adescription basedonopen circuit inspection. A
short circuit inspection isalso required forthe circuit checkinthe DIAGNOSTIC PROCEDURE. Fordetails,
refer toGI section ("HOWTOPERFORM EFFICIENT DIAGNOSIS FORANELECTRICAL INCIDENT","Circuit
Inspection").
Repair orreplace themalfunction parts.

.

Once youhave repaired thecircuit orreplaced acomponent, youneed torun theengine inthe same condi-
tions andcircumstances whichresulted inthe customer's initialcomplaint.
Perform the"DTC CONFIRMATION PROCEDURE"andconfirm thenormal code(Diagnostic troublecodeNo.
55) isdetected. Ifthe incident isstill detected inthe final check, perform STEPVIby using adifferent
method fromtheprevious one.
Before returning thevehicle tothe customer, besure toerase theunnecessary (alreadyfixed)DTCinECM.
(Refer toEC-252.)

EC-266

TROUBLEDIAGNOSIS -General Descrip_ti_on
1S_R_'

Basic Inspection
Precaution:
Perform BasicInspection withoutelectrical ormechanical loads
applied;
• Headlamp switchisOFF,
• Air conditioner switchisOFF,
• Rear defogger switchisOFF,
• Steering wheelisinthe straight-ahead position,etc.

m

BEFORE STARTING

1. Check service records forany recent •
repairs thatmay indicate arelated
problem, orthe current needfor
scheduled maintenance.
2. Open engine hoodandcheck thefol-
lowing:
• Harness connectors forimproper con-
nections
• Vacuum hosesforsplits, kinks,or
improper connections
• Wiring forimproper connections,
pinches, orcuts
Goto
(I.

No

CONNECT
CONSULTTOTHE VEHICLE.

Connect "CONSULT" tothe data link
connector forCONSULT andselect
"ENGINE" fromthemenu. Referto

EC-254.
DOES ENGINE START?

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~
~ SEF1421

START

•
IGN TIMING ADJ.
0

IGNITION TIMINGFEEDBACK
CONTROL WILLBEHELD BY
TOUCHING START
AFTER DOING SO,ADJUST
IGNITION TIMINGWITHA
TIMING LIGHTBYTURNING
THE CAMSHAFT POSITION
SENSOR.

SEF555N
Yes

CHECK IGNITION TIMING.

(ij\
1.Warm upengine sufficiently.
~ 2.Select "IGNTIMING ADJ"in
"WORK SUPPORT" mode.
3. Touch "START".
4. Check ignition timingatidle
using timing light.

Ignition timing:
15°::f:2° BTDC

~ 1Warm upengine sufficiently.

~ 2:
Stop engine anddisconnect
throttle position sensorhar-
ness connector.
3. Start engine.
4. Check ignition timingatidle
using timing light.

Ignition timing:
15°::f:2° BTDC
OK

(Go to
@
onnext page.) Adjust
ignition timingby
turning distributor.

EC-271