check engine NISSAN PRIMERA 1999 Electronic Repair Manual

DIAGNOSTIC PROCEDURE
INSPECTION START
(Circuit for EGRC-solenoid valve A)
CHECK MAIN POWER SUPPLY.
Refer to Trouble Diagnosis for main
power supply (EC-CD-59)
CHECK POWER SUPPLY.
1. Turn ignition switch to the ªLOCKº
position.
2. Disconnect EGRC-solenoid valve A
harness connector.
3. Turn ignition switch to the ªONº posi-
tion.
4. Check voltage between connector
terminal
p2and engine ground.
Voltage: Battery voltage
OK
ENG
Check the following:
lHarness continuity
between ECM relay
and EGRC-solenoid
valve A connector.
If NG, repair harness or
connectors.
CHECK OUTPUT SIGNAL CIRCUIT.
1. Turn ignition switch to the ªLOCKº
position.
2. Disconnect ECM harness connector.
3. Check harness continuity between
ECM harness connector terminal
208and EGRC solenoid valve A
connector terminal
p1.
Continuity should exist.
If OK, check harness for short-cir-
cuit.
OK
ENG
Check the following:
lHarness for open or
short-circuit between
ECM and solenoid
valve.
If NG, repair harness or
connectors.
CHECK COMPONENTS
(EGRC-solenoid valve).
Refer to ªCOMPONENT INSPECTIONº
EC-CD-135.
OK
ENG
Replace malfunctioning
component(s).
Disconnect and reconnect harness
connectors in the circuit. Then retest.
Trouble is not fixed
Check ECM pin terminals for damage
or the connection of ECM harness con-
nector. Reconnect ECM harness con-
nector and retest.
INSPECTION END
EGRC solenoid valve A
harness connector
NEF219A
EGRC solenoid
valve A harness
connector
NEF220A
H
H
H
H
H
H
H
TROUBLE DIAGNOSES 16CD20T
EGRC-Solenoid Valve (Cont'd)
EC-132

DIAGNOSTIC PROCEDURE
INSPECTION START
EGR CONTROL OPERATION
CHECK OVERALL FUNCTION.
1. Start engine and warm it up suffi-
ciently. (Air conditioner is ªOFFº).
2. Perform diagnostic test mode II
(Self-diagnostic results).
Make sure that diagnostic trouble
code No. 55 is displayed.
3. Make sure that EGR diaphragm
moves up and down (Use your finger
or a suitable tool) under the following
conditions:
At idle:
Spring does not move.
Racing engine from idle to 2800
rpm:
Spring moves up and down.
NG
EOK
INSPECTION END
CHECK VACUUM SOURCES TO EGR
VA LV E .
1. Disconnect vacuum hoses to EGR
valve.
2. Make sure that vacuum exists under
the following conditions:
At idle:
Vacuum should not exist.
Racing engine from idle to 2800
rpm:
Vacuum should exist.
NG
EOK
CHECK COMPONENTS
(EGR valve).
(See page EC-CD-135.)
NG
Replace malfunctioning
component(s).
pA
NEF433
EGR
valve
NEF434
EGR
valve
H
H
H
H
TROUBLE DIAGNOSES 16CD20T
EGRC-Solenoid Valve (Cont'd)
EC-133

pA
CHECK CONTROL FUNCTION.
1. Turn ignition switch to ªONº
position.
2. Turn EGRC-solenoid valve A
ªONº and ªOFFº in ªACTIVE
TESTº mode with CONSULT-II
and check operating sound.
----------------------------------------------------------------------------------------------------------------------------------------OR----------------------------------------------------------------------------------------------------------------------------------------
1. Check voltage between EGRC
solenoid valve A connector ter-
minal
p1, and ground with
tester under the following condi-
tions:
Voltage:
At idle
Battery voltage
Engine speed is 2,800 rpm
Approximately 0.4V
NG
EOK
CHECK VACUUM
HOSE.
Check vacuum hose
for clogging, cracks or
improper connection.
Perform electrical circuit inspection.
Refer to EC-CD-132.
OK
pB
C2ESA01
NEF435
NEF846
Crack
Clogging
Improper connection
.
NEF436
.EGRC-solenoid valve
harness connector
H
H
H
TROUBLE DIAGNOSES 16CD20T
EGRC-Solenoid Valve (Cont'd)
EC-134

Brake Switch
The ECM receives signals from two brake switches. One is a
conventional brake lamp switch, the other is referred to as a
redundant (RDNT) brake switch.
In case the accelerator pedal does not return to the idle position
(pedal sticks), the driver will react by depressing the brake. In
this (emergency) situation, the ECM will disregard the accelera-
tor pedal signal and bring back the engine speed to 1200 rpm.
Malfunction is detected when ...Check Items
(Possible Cause)
lBrake switch circuits are open or shorted.lHarness or connectors
(Brake switch circuits are open or shorted.)
lStop lamp switch
lRDNT brake switch
DIAGNOSTIC TROUBLE CONFIRMATION
PROCEDURE
1) Turn ignition switch to ªONº position and select ªDATA
MONITORº mode with CONSULT-II.
2) Depress brake pedal for at least 1 minute.
TROUBLE DIAGNOSES 17CD20T
EC-136

MI & Data Link Connectors
Malfunction indicator (MI) circuit is monitored for open or short-
circuit. If the circuit is malfunctioning, MI can not report it but
CONSULT-II can.
Malfunction is detected when ....Check Items
(Possible cause)
lMI circuit is open or shorted.lHarness or connectors
(MI circuit is open or shorted).
lMI lamp
lECM
DIAGNOSTIC TROUBLE CONFIRMATION
PROCEDURE
1) Turn ignition switch to ªONº position and select ªDATA
MONITORº mode with CONSULT-II.
2) Start engine and run it for at least 2 seconds at idle
speed.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------OR--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
OVERALL FUNCTION CHECK
1) Turn ignition switch to ªONº position.
2) Check that MI lits on.
TROUBLE DIAGNOSES 19CD20T
EC-141

ENGINE CONTROL SYSTEM
SECTION
EC
CONTENTS
QG16I18DE
TROUBLE DIAGNOSIS - INDEX....................................6
Alphabetical & P No. Index for DTC ...........................6
PRECAUTIONS...............................................................9
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²...............9
Precautions for On Board Diagnostic (OBD)
System of Engine ........................................................9
Engine Fuel & Emission Control System ..................10
Precautions ................................................................ 11
Wiring Diagrams and Trouble Diagnosis ...................12
PREPARATION..............................................................13
Special Service Tools ................................................13
Commercial Service Tool ...........................................13
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.........................................................................14
Engine Control Component Parts Location ...............14
Circuit Diagram ..........................................................17
System Diagram ........................................................18
Vacuum Hose Drawing ..............................................19
System Chart .............................................................20
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION...............................................21
Multiport Fuel Injection (MFI) System .......................21
Electronic Ignition (EI) System ..................................23
Air Conditioning Cut Control ......................................24
Fuel Cut Control (at no load & high engine
speed) ........................................................................25
Evaporative Emission System ...................................25
Positive Crankcase Ventilation ..................................28
BASIC SERVICE PROCEDURE...................................29
Fuel Pressure Release ..............................................29
Fuel Pressure Check .................................................29
Fuel Pressure Regulator Check ................................30
Injector .......................................................................30
Idle Speed/Ignition Timing/Idle Mixture Ratio
Adjustment .................................................................32Idle Air Volume Learning ...........................................33
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION...............................................................36
Introduction ................................................................36
Two Trip Detection Logic ...........................................36
Emission-related Diagnostic Information ...................37
Malfunction Indicator (MI) ..........................................45
OBD System Operation Chart ...................................50
CONSULT-II ...............................................................55
Generic Scan Tool (GST) ..........................................66
TROUBLE DIAGNOSIS - INTRODUCTION..................68
Introduction ................................................................68
Work Flow ..................................................................70
TROUBLE DIAGNOSIS - BASIC INSPECTION...........72
Basic Inspection.........................................................72
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION...............................................................80
DTC Inspection Priority Chart....................................80
Fail-safe Chart ...........................................................81
Symptom Matrix Chart ...............................................82
CONSULT-II Reference Value in Data Monitor
Mode ..........................................................................86
Major Sensor Reference Graph in Data Monitor
Mode ..........................................................................88
ECM Terminals and Reference Value .......................91
TROUBLE DIAGNOSIS - SPECIFICATION VALUE....98
Description .................................................................98
Testing Condition .......................................................98
Inspection Procedure .................................................98
Diagnostic Procedure ................................................99
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT.....................................................................102
Description ...............................................................102
Diagnostic Procedure ..............................................102
TROUBLE DIAGNOSIS FOR POWER SUPPLY........103
Main Power Supply and Ground Circuit ..................103
EC

DTC P0100 MASS AIR FLOW SENSOR (MAFS)...... 110
Component Description ........................................... 110
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................ 110
ECM Terminals and Reference Value ..................... 110
On Board Diagnosis Logic....................................... 110
DTC Confirmation Procedure .................................. 111
Wiring Diagram ........................................................ 112
Diagnostic Procedure .............................................. 113
Component Inspection ............................................. 115
DTC P0110 INTAKE AIR TEMPERATURE
SENSOR...................................................................... 116
Component Description ........................................... 116
On Board Diagnosis Logic....................................... 116
DTC Confirmation Procedure .................................. 116
Wiring Diagram ........................................................ 117
Diagnostic Procedure .............................................. 118
Component Inspection ............................................. 119
DTC P0115 ENGINE COOLANT TEMPERATURE
SENSOR (ECTS) (CIRCUIT).......................................120
Component Description ...........................................120
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................120
On Board Diagnosis Logic.......................................120
DTC Confirmation Procedure ..................................121
Wiring Diagram ........................................................122
Diagnostic Procedure ..............................................123
Component Inspection .............................................124
DTC P0120 THROTTLE POSITION SENSOR...........125
Component Description ...........................................125
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................125
ECM Terminals and Reference Value .....................126
On Board Diagnosis Logic.......................................126
DTC Confirmation Procedure ..................................126
Wiring Diagram ........................................................128
Diagnostic Procedure ..............................................129
Component Inspection .............................................131
DTC P0130 HEATED OXYGEN SENSOR 1
(FRONT) (CIRCUIT).....................................................132
Component Description ...........................................132
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................132
ECM Terminals and Reference Value .....................132
On Board Diagnosis Logic.......................................133
DTC Confirmation Procedure ..................................133
Overall Function Check ...........................................134
Wiring Diagram ........................................................135
Diagnostic Procedure ..............................................136
Component Inspection .............................................137DTC P0131 HEATED OXYGEN SENSOR 1
(FRONT) (LEAN SHIFT MONITORING).....................139
Component Description ...........................................139
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................139
ECM Terminals and Reference Value .....................139
On Board Diagnosis Logic.......................................140
DTC Confirmation Procedure ..................................140
Overall Function Check ...........................................141
Diagnostic Procedure ..............................................141
Component Inspection .............................................143
DTC P0132 HEATED OXYGEN SENSOR 1
(FRONT) (RICH SHIFT MONITORING)......................145
Component Description ...........................................145
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................145
ECM Terminals and Reference Value .....................145
On Board Diagnosis Logic.......................................146
DTC Confirmation Procedure ..................................146
Overall Function Check ...........................................147
Diagnostic Procedure ..............................................147
Component Inspection .............................................149
DTC P0133 HEATED OXYGEN SENSOR 1
(FRONT) (RESPONSE MONITORING).......................151
Component Description ...........................................151
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................151
ECM Terminals and Reference Value .....................151
On Board Diagnosis Logic.......................................152
DTC Confirmation Procedure ..................................152
Overall Function Check ...........................................153
Wiring Diagram ........................................................154
Diagnostic Procedure ..............................................155
Component Inspection .............................................158
DTC P0134 HEATED OXYGEN SENSOR 1
(FRONT) (HIGH VOLTAGE)........................................160
Component Description ...........................................160
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................160
ECM Terminals and Reference Value .....................160
On Board Diagnosis Logic.......................................161
DTC Confirmation Procedure ..................................161
Wiring Diagram ........................................................162
Diagnostic Procedure ..............................................163
Component Inspection .............................................164
DTC P0135 HEATED OXYGEN SENSOR 1
(FRONT) HEATER.......................................................166
Description ...............................................................166
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................166
ECM Terminals and Reference Value .....................166
On Board Diagnosis Logic.......................................166
CONTENTS(Cont'd)
EC-2

Component Inspection ............................................. 311
DTC P1706 PARK/NEUTRAL POSITION (PNP)
SWITCH.......................................................................313
Component Description ...........................................313
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................313
ECM Terminals and Reference Value .....................313
On Board Diagnosis Logic.......................................313
DTC Confirmation Procedure ..................................313
Overall Function Check ...........................................314
Wiring Diagram ........................................................315
Diagnostic Procedure For M/T Models....................316
INJECTOR...................................................................318
Component Description ...........................................318
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................318
ECM Terminals and Reference Value .....................318
Wiring Diagram ........................................................319
Diagnostic Procedure ..............................................320
Component Inspection .............................................322
IGNITION SIGNAL.......................................................323
Component Description ...........................................323
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................323
ECM Terminals and Reference Value .....................323
Wiring Diagram ........................................................324
Diagnostic Procedure ..............................................326
Component Inspection .............................................331
START SIGNAL...........................................................332
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................332
ECM Terminals and Reference Value .....................332
Wiring Diagram ........................................................333
Diagnostic Procedure ..............................................334
FUEL PUMP.................................................................336
System Description ..................................................336
Component Description ...........................................336
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................336
ECM Terminals and Reference Value .....................337
Wiring Diagram ........................................................338
Diagnostic Procedure ..............................................339Component Inspection .............................................341
POWER STEERING OIL PRESSURE SWITCH.........342
Component Description ...........................................342
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................342
ECM Terminals and Reference Value .....................342
Wiring Diagram ........................................................343
Diagnostic Procedure ..............................................344
Component Inspection .............................................346
REFRIGERANT PRESSURE SENSOR......................347
Description ...............................................................347
ECM Terminals and Reference Value .....................347
Wiring Diagram ........................................................348
Diagnostic Procedure ..............................................349
ELECTRICAL LOAD SIGNAL.....................................351
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................351
ECM Terminals and Reference Value .....................351
Wiring Diagram ........................................................352
MI & DATA LINK CONNECTORS...............................354
Wiring Diagram ........................................................354
SERVICE DATA AND SPECIFICATIONS (SDS)........355
Fuel Pressure Regulator..........................................355
Idle Speed and Ignition Timing ................................355
Mass Air Flow Sensor..............................................355
Intake Air Temperature Sensor ................................355
Engine Coolant Temperature Sensor ......................355
Throttle Position Sensor ..........................................355
Heated Oxygen Sensor 1 Heater (Front) ................355
Heated Oxygen Sensor 2 Heater (Rear).................355
Crankshaft Position Sensor (POS) ..........................356
Camshaft Position Sensor (PHASE) .......................356
EGR Volume Control Valve (If so equipped)...........356
EGR Temperature Sensor (If so equipped).............356
EVAP Canister Purge Volume Control Valve ..........356
IACV-AAC Valve ......................................................356
Injector .....................................................................356
Ignition Coil with Power Transistor ..........................357
Fuel Pump ...............................................................357
CONTENTS(Cont'd)
EC-5

INSPECTIONNCEC0019EVAP CanisterNCEC0019S01Check EVAP canister as follows:
1. Block port B. Orally blow air through port A. Check that air
flows freely through port C with check valve resistance.
2. Block port A. Orally blow air through port B. Check that air
flows freely through port C.
Fuel Tank Vacuum Relief Valve (Built into fuel filler cap)NCEC0019S031. Wipe clean valve housing.
2. Check valve opening pressure and vacuum.
Pressure:
16.0 - 20.0 kPa (0.16 - 0.20 bar, 0.163 - 0.204
kg/cm
2, 2.32 - 2.90 psi)
Vacuum:
þ6.0 to þ3.5 kPa (þ0.060 to þ0.035 bar, þ0.061 to
þ0.036 kg/cm
2, þ0.87 to þ0.51 psi)
3. If out of specification, replace fuel filler cap as an assembly.
Evaporative Emission (EVAP) Canister Purge Volume
Control Solenoid Valve
NCEC0019S07Refer to EC-QG-266.
SEF917W
SEF918W
SEF943S
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTIONQG16I18DE
Evaporative Emission System (Cont'd)
EC-26

Positive Crankcase Ventilation
DESCRIPTIONNCEC0022
This system returns blow-by gas to the intake collector.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV
valve.
Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.
The ventilating air is then drawn from the air duct into the crankcase. In this process the air passes through
the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve.
The flow goes through the hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not meet the requirement. This is because some
of the flow will go through the hose connection to the intake collector under all conditions.
INSPECTIONNCEC0023PCV (Positive Crankcase Ventilation) ValveNCEC0023S01With engine running at idle, remove PCV valve from breather sepa-
rator. A properly working valve makes a hissing noise as air passes
through it. A strong vacuum should be felt immediately when a fin-
ger is placed over the valve inlet.
Ventilation HoseNCEC0023S021. Check hoses and hose connections for leaks.
2. Disconnect all hoses and clean with compressed air. If any
hose cannot be freed of obstructions, replace.
SEF921W
SEC137A
ET277
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTIONQG16I18DE
Positive Crankcase Ventilation
EC-28