2003 NISSAN ALMERA N16 crankshaft

EC-638
[QG (WITHOUT EURO-OBD)]
HO2S2 HEATER
HO2S2 HEATER
PFP:226A0
DescriptionEBS00KKG
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed,
amount of intake air and engine coolant temperature.
OPERATION
CONSULT-II Reference Value in Data Monitor ModeEBS00KKH
Specification data are reference values.
Sensor Input Signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Engine speed
Heated oxygen sensor 2
heater controlHeated oxygen sensor 2 heater Crankshaft position sensor (POS)
Engine coolant temperature sensor Engine coolant temperature
Mass air flow sensor Amount of intake air
Engine speed rpm Heated oxygen sensor 2 heater
Above 3,800 OFF
●Below 3,800 rpm after the following conditions are met.
●Engine: After warming up
●Keeping the engine speed between 3,500 and 4,000 rpm for
one minute and at idle for one minute under no loadON
MONITOR ITEM CONDITION SPECIFICATION
HO2S2 HTR (B1)
●Engine speed: Below 3,800 rpm after the following conditions are met.
●Engine: After warming up
●Keeping the engine speed between 3,500 and 4,000 rpm for one
minute and at idle for one minute under no loadON
●Engine speed: Above 3,800 rpm OFF

EC-670
[QG (WITHOUT EURO-OBD)]
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
PFP:14920
DescriptionEBS00KL8
SYSTEM DESCRIPTION
*: This signal is sent to the ECM through CAN communication line.
*2: The ECM determines the start signal status by the signals of engine speed and battery voltage.
This system controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass pas-
sage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is
determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor
from the EVAP canister is regulated as the air flow changes.
COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. The EVAP canister purge volume control solenoid valve is
moved by ON/OFF pulses from the ECM. The longer the ON pulse,
the greater the amount of fuel vapor that will flow through the valve.
CONSULT-II Reference Value in Data Monitor ModeEBS00KL9
Specification data are reference values.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed
*2
EVAP canister
purge flow controlEVAP canister purge
volume control solenoid
valve Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Battery
Battery voltage*2
Throttle position sensor Throttle position
Accelerator pedal position sensor Closed throttle position
Heated oxygen sensors 1Density of oxygen in exhaust gas
(Mixture ratio feedback signal)
Vehicle speed signal
*1Vehicle speed
SEF337U
MONITOR ITEM CONDITION SPECIFICATION
PURG VOL C/V
●Engine: After warming up
●Shift lever:
N (A/T models)
Neutral (M/T models)
●Air conditioner switch: OFF
●No-loadIdle 0%
2,000 rpm 15 - 30%

IVT CONTROL SOLENOID VALVE
EC-683
[QG (WITHOUT EURO-OBD)]
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EC
IVT CONTROL SOLENOID VALVEPFP:23796
DescriptionEBS00KLL
SYSTEM DESCRIPTION
*: This signal is sent to the ECM through CAN communication line.
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant
temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing control solenoid
valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to
increase engine torque in low/mid speed range and output in high-speed range.
COMPONENT DESCRIPTION
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.
CONSULT-II Reference Value in Data Monitor ModeEBS00KLM
Specification data are reference values.
Sensor Input signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Engine speed
Intake valve
timing controlIntake valve timing control
solenoid valve Camshaft position sensor (PHASE)
Engine coolant temperature sensor Engine coolant temperature
Vehicle speed signal
*Vehicle speed
MBIB0121E
PBIB0195E

EC-688
[QG (WITHOUT EURO-OBD)]
IVT CONTROL SOLENOID VALVE
6. CHECK CRANKSHAFT POSITION SENSOR (POS)
Refer to EC-559, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace crankshaft position sensor (POS).
7. CHECK CAMSHAFT POSITION SENSOR (PHASE)
Refer to EC-566, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace camshaft position sensor (PHASE).
8. CHECK CAMSHAFT (INTAKE)
Check the following.
●Accumulation of debris to the signal plate of camshaft rear end
●Chipping signal plate of camshaft rear end
OK or NG
OK >> GO TO 9.
NG >> Remove debris and clean the signal plate of camshaft
rear end or replace camshaft.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-485, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS00KLP
INTAKE VALVE TIMING CONTROL SOLENOID VALVE
1. Disconnect intake valve timing control solenoid valve harness connector.
2. Check resistance between intake valve timing control solenoid
valve terminals 1 and 2.
Removal and InstallationEBS00KLQ
INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to EM-47, "TIMING CHAIN" .
PBIB0565E
Terminals Resistance
1 and 2 Approximately 8Ω at 20°C (68°F)
1 or 2 and ground∞Ω
(Continuity should not exist)
PBIB0574E

FUEL PUMP CIRCUIT
EC-699
[QG (WITHOUT EURO-OBD)]
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EC
FUEL PUMP CIRCUITPFP:17042
DescriptionEBS00KM1
SYSTEM DESCRIPTION
*: The ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned on to improve engine
startability. If the ECM receives a engine speed signal from the crankshaft position sensor (POS) and cam-
shaft position sensor (PHASE), it knows that the engine is rotating, and causes the pump to operate. If the
engine speed signal is not received when the ignition switch is ON, the engine stalls. The ECM stops pump
operation and prevents battery discharging, thereby improving safety. The ECM does not directly drive the fuel
pump. It controls the ON/OFF fuel pump relay, which in turn controls the fuel pump.
COMPONENT DESCRIPTION
A turbine type design fuel pump is used in the fuel tank.
CONSULT-II Reference Value in Data Monitor ModeEBS00KM2
Specification data are reference values.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed
*
Fuel pump control Fuel pump relay
Battery
Battery voltage
*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and crankingOperates.
When engine is stoppedStops in 1.5 seconds.
Except as shown aboveStops.
MBIB0046E
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLY
●For 1 seconds after turning ignition switch ON
●Engine running or crankingON
●Except above conditions OFF

EC-722
[QG (WITHOUT EURO-OBD)]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Fuel PressureEBS00KML
Idle Speed and Ignition TimingEBS00KMM
*1: Under the following conditions:
●Air conditioner switch: OFF
●Electric load: OFF (Lights, heater fan & rear window defogger)
●Steering wheel: Kept in straight-ahead position
Calculated Load ValueEBS00KMN
Mass Air Flow SensorEBS00KMO
*: Engine is warmed up to normal operating temperature and running under no-load.
Intake Air Temperature SensorEBS00KMP
Engine Coolant Temperature SensorEBS00KMQ
Heated Oxygen Sensor 1 HeaterEBS00KMR
Heated Oxygen sensor 2 HeaterEBS00KMS
Crankshaft Position Sensor (POS)EBS00KMT
Refer to EC-559, "Component Inspection" .
Camshaft Position Sensor (PHASE)EBS00KMU
Refer to EC-566, "Component Inspection" .
Fuel pressure at idle
Approximately 350 kPa (3.5bar, 3.57kg/cm2 , 51psi)
Target idle speed
No-load*1 (in “P” or N” position)A/T: 800±50 rpm
M/T: 700±50 rpm
Air conditioner: ON In “P” or N” position 900 rpm or more
Ignition timingIn “P” or N” position A/T: 10°±5° BTDC
M/T: 8°±5° BTDC
Calculated load value % (Using CONSULT-II)
At idle10 - 35
At 2,500 rpm10 - 35
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle1.0 - 1.7*V
Mass air flow (Using CONSULT-II)1.0 - 4.0 g·m/sec at idle*
5.0 - 10.0 g·m/sec at 2,500 rpm*
Temperature °C (°F) Resistance kΩ
25 (77)1.9 - 2.1
80 (176)0.31 - 0.37
Temperature °C (°F) Resistance kΩ
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Resistance [at 20°C (68°F)] 8 - 10Ω
Resistance [at 25°C (77°F)] 2.3 - 4.3Ω

On Board Diagnosis Logic.......................................175
DTC Confirmation Procedure ..................................175
Diagnostic Procedure ..............................................176
DTC P1620 ECM RLY.................................................177
ECM Terminals and Reference Value .....................177
On Board Diagnosis Logic.......................................177
DTC Confirmation Procedure ..................................177
Wiring Diagram ........................................................178
Diagnostic Procedure ..............................................179
DTC P1621 ECM 15<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011>1
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........181
On Board Diagnosis Logic.......................................181
DTC Confirmation Procedure ..................................181
Diagnostic Procedure ..............................................182
DTC P1660 BATTERY VOLTAGE..............................183
On Board Diagnosis Logic.......................................183
DTC Confirmation Procedure ..................................183
Diagnostic Procedure ..............................................183
DTC P1690 P5.PUMP C/MODULE.............................185
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........185
CONSULT-II Reference Value in Data Monitor
Mode <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011[.............185
ECM Terminals and Reference Value .....................186
On Board Diagnosis Logic.......................................186
DTC Confirmation Procedure ..................................186
Diagnostic Procedure ..............................................187
GLOW CONTROL SYSTEM.......................................188
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........188
ECM Terminals and Reference Value .....................189
Wiring Diagram ........................................................190
Diagnostic Procedure ..............................................191EGR VOLUME CONTROL SYSTEM..........................197
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........197
CONSULT-II Reference Value in Data Monitor
Mode <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011[.............198
ECM Terminals and Reference Value .....................198
Wiring Diagram ........................................................199
Diagnostic Procedure ..............................................200
START SIGNAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011>5
Wiring Diagram ........................................................205
Diagnostic Procedure ..............................................206
PARK/NEUTRAL POSITION (PNP) SWITCH
(WHERE FITTED)<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011>8
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........208
CONSULT-II Reference Value in Data Monitor
Mode <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011[.............208
ECM Terminals and Reference Value .....................208
Wiring Diagram ........................................................209
Diagnostic Procedure ..............................................210
AIR CONDITIONER CONTROL..................................212
Wiring Diagram ........................................................212
MI & DATA LINK CONNECTORS..............................213
Wiring Diagram ........................................................213
SERVICE DATA AND SPECIFICATIONS (SDS).......214
General Specifications .............................................214
Injection Nozzle .......................................................214
Engine Coolant Temperature Sensor ......................214
Crankshaft Position Sensor (TDC) ..........................214
Glow Plug <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011[.........214
Accelerator Position Sensor ....................................214
EGR Volume Control Valve .....................................214GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
CONTENTS(Cont’d)
EC-3

System ChartNJEC0611
Input (Sensor) ECM Function Output (Actuator)
Electronic control fuel injection pump
Crankshaft position sensor (TDC)
Engine coolant temperature sensor
Accelerator position sensor
Accelerator position switch
Park/Neutral position (PNP) switch*
Ignition switch
Battery voltage
Vehicle speed sensor
Air conditioner switch
Mass air flow sensor
Stop lamp switchFuel injection controlElectronic control fuel injection
pump
Fuel injection timing controlElectronic control fuel injection
pump
Fuel cut controlElectronic control fuel injection
pump
Glow control system Glow relay & glow lamp
On board diagnostic system MI (On the instrument panel)
EGR volume control EGR volume control valve
Cooling fan control Cooling fan relay
Air conditioning cut control Air conditioner relay
*: If so equipped
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD
System Chart
EC-16