oil change NISSAN PRIMERA 1999 Electronic Repair Manual

CONTROL SYSTEMNCAT0014S02
NAT310 WheelDifferential
gearFinal gearBelt and
PulleyForward and
reverse
changeTorque
converterEngine Transaxle
Oil pump
Oil pressure control Parking
system
Control device
Sport mode SW or
manual mode SWElectrical control
Control valve
Primary pulley
speed and
secondary pulley
speed sensor
CVT indicator
(warning) lamp or
SPORT indicator lamp [Hyper CVT-M6]
Position
indicator
Indicator C/U
TCM
Mechanical system
Oil system
Electrical system
Stop lamp SWABS C/UECMThrottle
opening
sensor Engine speed sensor
PNP switch
OVERALL SYSTEM
Control System (Cont'd)
AT-13

Diagnostic ProcedureNCAT0042
1 CHECK DTC WITH ECM
Perform diagnostic test mode II (self-diagnostic results) for engine control. Check ignition signal circuit condition.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-II)©GO TO 3.
NG©Check ignition signal circuit for engine control. Refer to EC section (IGNITION SIGNAL).
2 CHECK INPUT SIGNAL (With CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
3. Read out the value of ªENGINE SPEEDº.
Check engine speed changes according to throttle position.
OK or NG
OK©GO TO 4.
NG©Check the following items:
IHarness for short or open between TCM and ECM
IResistor and ignition coil
Refer to EC section (IGNITION SIGNAL).
3 CHECK INPUT SIGNAL (Without CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 39 and ground.
Voltage (Idle speed):
0.5 - 1.5V
SAT424JA
OK or NG
OK©GO TO 4.
NG©Check the following items:
IHarness for short or open between TCM and ECM
IResistor and ignition coil
Refer to EC section (IGNITION SIGNAL).
4 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-66.
OK or NG
OK©INSPECTION END
NG©1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
DTC P0725 ENGINE SPEED SIGNAL
Diagnostic Procedure
AT-68

SYSTEM OPERATION CHECK
Set voltmeter between glow plug and engine body.
1. Pre-glow control system
a. Turn ignition switch to ªONº position.
b. Read voltage.
Voltage:
Battery voltage for an engine coolant temperature
dependent time.
* Repeatedly turning the ignition switch to ªONº
position and to ªLOCKº position may change
the pre-glow time.
2. After-glow system
Start engine and read voltage.
Voltage:
Battery voltage for 5* minutes
* Engine coolant temperature is lower than 50ÉC
(122ÉF).
COMPONENT INSPECTION
Glow relay
1. Check relay for coil continuity between glow relay terminals
p1andp2.
Continuity should exist.
2. Check relay for proper operation by applying 12V dc voltage
between glow relay terminals
p1andp2and checking con-
tinuity between terminals
p3andp5.
Coil voltage Continuityp3andp5Contact point
0VNo OFF
12VYe s O N
SEC554B Glow plug plate
NEF838
Pre-glow time
Engine coolant temperature
.(-4) (32) (68) (104)
NEF839 Engine coolant temperature
After glow time (sec.)
.(-4) (32) (68) (104)
SEC564B OhmmeterGlow relay
Contact point
12V dc
p2
p1
p3
p5
TROUBLE DIAGNOSES 14CD20T
Glow Control System (Cont'd)
EC-124

If results are unsatisfactory, perform Fuel Pressure Regulator
Check, EC-QG-30.
Fuel Pressure Regulator CheckNCEC00261. Stop engine and disconnect fuel pressure regulator vacuum
hose from intake manifold.
2. Plug intake manifold with a rubber cap.
3. Connect variable vacuum source to fuel pressure regulator.
4. Start engine and read indication of fuel pressure gauge as
vacuum is changed.
Fuel pressure should decrease as vacuum increases. If results
are unsatisfactory, replace fuel pressure regulator.
Injector
REMOVAL AND INSTALLATIONNCEC00271. Release fuel pressure to zero.
2. Remove fuel tube assemblies in numerical sequence as
shown in the Figure at left.
3. Expand and remove clips securing fuel injectors.
4. Extract fuel injectors straight from fuel tubes.
IBe careful not to damage injector nozzles during removal.
IDo not bump or drop fuel injectors.
IDo not disassemble or adjust fuel injectors.
5. Install fuel injectors.
Carefully install O-rings, including the one used with the pres-
sure regulator.
IUse bare hands to install O-rings. Do not wear gloves.
IApply a coat of engine oil (with a low viscosity of 5W-30,
etc.) to O-rings before installation.
IDo not use solvent to clean O-rings and other parts.
IMake sure that O-rings and other parts are clean and free
from foreign particles.
IBe careful not to damage O-rings with service tools or
finger nails. Do not expand or twist O-rings. If stretched,
do not insert them into fuel tubes immediately after
stretching.
IAlways insert O-rings straight into fuel tubes. Do not tilt
or rotate them during installation.
6. Position clips in grooves on fuel injectors.
IMake sure that protrusions of fuel injectors are aligned
with cutouts of clips after installation.
SEF718B
SEF926W
SEF927W
BASIC SERVICE PROCEDUREQG16I18DE
Fuel Pressure Regulator Check
EC-30

DATA MONITOR (SPEC) MODENLEC1365S07
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
MAS A/F SE-B1 [V]qqIThe signal voltage of the mass air flow sen-
sor specification is displayed.IWhen the engine is running, specifi-
cation range is indicated.
B/FUEL SCHDL
[msec]IªBase fuel scheduleº indicates the fuel injec-
tion pulse width programmed into ECM,
prior to any learned on board correction.IWhen the engine is running, specifi-
cation range is indicated.
A/F ALPHA-B1 [%]qIIndicates the mean value of the air-fuel ratio
feedback correction factor per cycle.IWhen the engine is running, specifi-
cation range is indicated.
IThis data also includes the data for
the air-fuel ratio learning control.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODENCEC0034S07
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
FUEL INJECTIONIEngine: Return to the original
trouble condition
IChange the amount of fuel injec-
tion using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.IHarness and connector
IFuel injectors
IHeated oxygen sensor 1 (front)
IACV-AAC/V
OPENINGIEngine: After warming up, idle
the engine.
IChange the IACV-AAC valve
opening steps using CONSULT-
II.Engine speed changes according
to the opening steps.IHarness and connector
IIACV-AAC valve
ENG COOLANT
TEMPIEngine: Return to the original
trouble condition
IChange the engine coolant tem-
perature indication using CON-
SULT-II.If trouble symptom disappears, see
CHECK ITEM.IHarness and connector
IEngine coolant temperature sen-
sor
IFuel injectors
IGNITION TIMINGIEngine: Return to the original
trouble condition
ITiming light: Set
IRetard the ignition timing using
CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.IªBase Idle Air Volume Initializingº
(Refer to EC-QG-33.)
ICamshaft position sensor
(PHASE)
ICrankshaft position sensor
(POS)
IEngine component parts and
installing conditions
POWER BAL-
ANCEIEngine: After warming up, idle
the engine.
IAir conditioner switch ªOFFº
IShift lever ªNº
ICut off each injector signal one
at a time using CONSULT-II.Engine runs rough or dies.IHarness and connector
ICompression
IInjectors
IPower transistor
ISpark plugs
IIgnition coils
COOLING FANIIgnition switch: ON
ITurn the cooling fan ªONº and
ªOFFº using CONSULT-II.Cooling fan moves and stops.IHarness and connector
ICooling fan motor
FUEL PUMP
RELAYIIgnition switch: ON
(Engine stopped)
ITurn the fuel pump relay ªONº
and ªOFFº using CONSULT-II
and listen to operating sound.Fuel pump relay makes the operat-
ing sound.IHarness and connector
IFuel pump relay
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONQG16I18DE
CONSULT-II (Cont'd)
EC-62

Component DescriptionNCEC0551The crankshaft position sensor is located on the right rear wall of
the cylinder block in relation to the signal plate on the No. 6 coun-
terweight.
The crankshaft position sensor is a basic component of the engine
control system. It monitors engine speed, piston position, and fluc-
tuation of the engine revolution. These input signals to the engine
control system are used to control fuel injection, ignition timing and
other functions.
The sensor consists of a permanent magnet, core and coil.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor to change.
The signal plate is provided with 34 teeth to emit a signal at an
interval of 10É during crankshaft operations. However, it is not pro-
vided with 2 teeth to emit a signal at an interval of 180É.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.
The ECM receives a voltage signal to provide ªtime processingº for
engine speed, piston position and fluctuation of engine revolutions.
This sensor is not used to control the engine system. It is used only
for the on board diagnosis.
ECM Terminals and Reference ValueNCEC0552Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL NO.WIRE
COLORITEM CONDITION DATA (AC Voltage)
85 WCrankshaft position
sensor[Engine is running]
IWarm-up condition
IIdle speed3-4V
SEF979W
[Engine is running]
IEngine speed is 2,000 rpm3-4V
SEF980W
SEF058X
SEF117X
DTC P0335 CRANKSHAFT POSITION SENSOR (POS)QG16I18DE
Component Description
EC-232

Component DescriptionNCEC0220The camshaft position sensor senses the protrusion provided with
exhaust valve cam sprocket to identify a particular cylinder. The
crankshaft position sensor senses the piston position.
When the crankshaft position sensor system becomes inoperative,
the camshaft position sensor provides various controls of engine
parts instead, utilizing timing of cylinder identification signals.
The sensor consists of a permanent magnet, core and coil.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.
ECM Terminals and Reference ValueNCEC0221Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
66*
75WCamshaft position sen-
sor (PHASE)[Engine is running]
IWarm-up condition
IIdle speed3-4V
SEF977W
[Engine is running]
IEngine speed is 2,000 rpm3-4V
SEF978W
*: If so equipped
On Board Diagnosis LogicNCEC0222
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0340
0340IThe cylinder No. signal is not entered to ECM for the first
few seconds during engine cranking.
.................................................................................................
IThe cylinder No. signal is not enter to ECM during engine
running.
.................................................................................................
IThe cylinder No. signal is not in the normal pattern during
engine running.IHarness or connectors
(The camshaft position sensor (PHASE) circuit is
open or shorted.)
ICamshaft position sensor (PHASE)
IStarter motor (Refer to EL section.)
IStarting system circuit (Refer to EL section.)
SEF058X
DTC P0340 CAMSHAFT POSITION SENSOR (CMPS)
(PHASE)QG16I18DE
Component Description
EC-238

DescriptionNCEC0279SYSTEM DESCRIPTIONNCEC0279S01
Sensor Input Signal to ECMECM func-
tionActuator
Crankshaft position sensor (POS) Engine speed
Idle air con-
trolIACV-AAC valve Engine coolant temperature sensor Engine coolant temperature
Ignition switch Start signal
Throttle position sensor Throttle position
PNP switch Park/Neutral position
Air conditioner switch Air conditioner operation
Power steering oil pressure switch Power steering load signal
Battery Battery voltage
Vehicle speed sensor or ABS actuator and
electric unit (control unit)Vehicle speed
Cooling fan Cooling fan operation
Electrical load Electrical load signal
This system automatically controls engine idle speed to a specified
level. Idle speed is controlled through fine adjustment of the
amount of air which by-passes the throttle valve via IACV-AAC
valve. The IACV-AAC valve changes the opening of the air by-pass
passage to control the amount of auxiliary air. This valve is actu-
ated by a step motor built into the valve, which moves the valve in
the axial direction in steps corresponding to the ECM output sig-
nals. One step of IACV-AAC valve movement causes the respec-
tive opening of the air by-pass passage. (i.e. when the step
advances, the opening is enlarged.) The opening of the valve is
varied to allow for optimum control of the engine idling speed. The
crankshaft position sensor (POS) detects the actual engine speed
and sends a signal to the ECM. The ECM then controls the step
position of the IACV-AAC valve so that engine speed coincides with
the target value memorized in ECM. The target engine speed is the
lowest speed at which the engine can operate steadily. The opti-
mum value stored in the ECM is determined by taking into consid-
eration various engine conditions, such as during warm up,
deceleration, and engine load (air conditioner, power steering, cool-
ing fan operation and electrical load).
COMPONENT DESCRIPTIONNCEC0279S02The IACV-AAC valve is operated by a step motor for centralized
control of auxiliary air supply. This motor has four winding phases
and is actuated by the output signals of ECM which turns ON and
OFF two windings each in sequence. Each time the IACV-AAC
valve opens or closes to change the auxiliary air quantity, the ECM
sends a pulse signal to the step motor. When no change in the
auxiliary air quantity is needed, the ECM does not issue the pulse
signal. A certain voltage signal is issued so that the valve remains
at that particular opening.
SEF937W
DTC P0505 IDLE AIR CONTROL VALVE (IACV) Ð
AUXILIARY AIR CONTROL (AAC) VALVEQG16I18DE
Description
EC-274

Multiport Fuel Injection (MFI) System
DESCRIPTIONNCEC0014Input/Output Signal ChartNCEC0014S01
Sensor Input Signal to ECMECM func-
tionActuator
Camshaft position sensor Engine speed and piston position
Fuel injec-
tion & mix-
ture ratio
controlInjector Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Heated oxygen sensor 1 (front) Density of oxygen in exhaust gas
Throttle position sensorThrottle position
Throttle valve idle position
PNP switch Gear position
Vehicle speed sensor or ABS actuator and
electric unit (control unit)Vehicle speed
Ignition switch Start signal
Air conditioner switch Air conditioner operation
Knock sensor Engine knocking condition
Electrical load Electrical load signal
Battery Battery voltage
Power steering oil pressure switch Power steering operation
Heated oxygen sensor 2 (rear)* Density of oxygen in exhaust gas
* Under normal conditions, this sensor is not for engine control operation.
Basic Multiport Fuel Injection SystemNCEC0014S02The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from both the camshaft position sensor and the mass air
flow sensor.
Various Fuel Injection Increase/Decrease CompensationNCEC0014S03In addition, the amount of fuel injected is compensated to improve engine performance under various oper-
ating conditions as listed below.

IDuring warm-up
IWhen starting the engine
IDuring acceleration
IHot-engine operation
IWhen selector lever is changed from ªNº to ªDº (CVT models only)
IHigh-load, high-speed operation

IDuring deceleration
IDuring high engine speed operation
IDuring high vehicle speed operation (M/T models)
IExtremely high engine coolant temperature
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTIONSR20DE
Multiport Fuel Injection (MFI) System
EC-23

If results are unsatisfactory, perform Fuel Pressure Regulator
Check, EC-SR-32.
Fuel Pressure Regulator CheckNCEC00261. Stop engine and disconnect fuel pressure regulator vacuum
hose from intake manifold.
2. Plug intake manifold with a rubber cap.
3. Connect variable vacuum source to fuel pressure regulator.
4. Start engine and read indication of fuel pressure gauge as
vacuum is changed.
Fuel pressure should decrease as vacuum increases. If results
are unsatisfactory, replace fuel pressure regulator.
IDo not reuse O-ring.
Injector
REMOVAL AND INSTALLATIONNCEC00271. Release fuel pressure to zero.
2. Disconnect fuel hoses and injector harness connectors.
3. Remove fuel tube assemblies with fuel injectors.
4. Expand and remove clips securing fuel injectors.
5. Extract fuel injectors straight from fuel tubes.
IBe careful not to damage injector nozzles during removal.
IDo not bump or drop fuel injectors.
IDo not disassemble or adjust fuel injectors.
6. Install fuel injectors with extra care for O-rings.
IDo not reuse O-rings.
IUse bare hands to install O-rings. Do not wear gloves.
IApply a coat of new engine oil (with a low viscosity of
5W-30, etc.) to O-rings before installation.
IDo not use solvent to clean O-rings and other parts.
IMake sure that O-rings and other parts are clean and free
from foreign particles.
IBe careful not to damage O-rings with service tools, clip
or finger nails. Do not expand or twist O-rings. If
stretched, do not insert them into fuel tubes immediately
after stretching.
IAlways insert O-rings straight into fuel tubes. Do not tilt
or rotate them during installation.
7. Position clips in grooves on fuel injectors.
IMake sure that protrusions of fuel injectors are aligned
with cutouts of clips after installation.
8. Align protrusions of fuel tubes with those of fuel injectors.
Insert fuel injectors straight into fuel tubes.
9. After properly inserting fuel injectors, check to make sure that
fuel tube protrusions are engaged with those of fuel injectors,
and that flanges of fuel tubes are engaged with clips.
SEF718B
SEF927W
BASIC SERVICE PROCEDURESR20DE
Fuel Pressure Regulator Check
EC-32