NISSAN ALMERA TINO 2001 Service Repair Manual

Wiring DiagramNLEC1319MODELS WITH ECM IN ENGINE COMPARTMENTNLEC1319S01
YEC754
INTAKE VALVE TIMING CONTROL SOLENOID VALVEQG18DE
Wiring Diagram
EC-476

MODELS WITH ECM IN CABINNLEC1319S02
YEC900
INTAKE VALVE TIMING CONTROL SOLENOID VALVEQG18DE
Wiring Diagram (Cont'd)
EC-477

Diagnostic ProcedureNLEC1320
1 INSPECTION START
Do you have CONSULT-II?
YesorNo
Ye s©GO TO 2.
No©GO TO 3.
2 CHECK OVERALL FUNCTION
With CONSULT-II
1. Start engine and warm it up to normal operation temperature.
2. Select ªINT/V SOL-B1º in ªDATA MONITORº mode with CONSULT-II.
3. Lift up vehicle and simulate driving in a suitable gear position.
4. Check the ªINT/V SOL-B1º singal under the following conditions.
SEF758Z
OK or NG
OK©INSPECTION END
NG©GO TO 4.
3 CHECK OVERALL FUNCTION
Without CONSULT-II
1. Start engine engine and warm it up to normal operation temperature.
2. Lift up vehicle and simulate driving in a suitable gear position.
3. Check the voltage between ECM terminal 1 and ground under the following conditions.
SEF757Z
OK or NG
OK©INSPECTION END
NG©GO TO 4.
INTAKE VALVE TIMING CONTROL SOLENOID VALVEQG18DE
Diagnostic Procedure
EC-478

4 CHECK POWER SUPPLY
1. Turn ignition switch ªOFFº.
2. Disconnect intake valve timing control solenoid valve harness connector.
SEF149X
3. Turn ignition switch ªONº.
4. Check voltage between terminal 1 and engine ground with CONSULT-II or tester.
SEF619X
OK or NG
OK©GO TO 6.
NG©GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors F35, E75 (where fitted)
+Harness connectors M72, F44 (where fitted)
+10A fuse
+Harness for open or short between valve timing control solenoid valve and fuse
©Repair harness or connectors.
6 CHECK OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 1 and intake valve timing control solenoid valve harness connector
terminal 2. Refer to wiring diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 7.
NG©Repair open circuit or short to ground to short to power or connectors.
INTAKE VALVE TIMING CONTROL SOLENOID VALVEQG18DE
Diagnostic Procedure (Cont'd)
EC-479

7 CHECK VALVE TIMING CONTROL SOLENOID VALVE
Refer to ªComponent Inspectionº, EC-480.
OK or NG
OK©GO TO 8.
NG©Replace valve timing control solenoid valve.
8 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-145.
©INSPECTION END
SEF159Y
Component InspectionNLEC1321INTAKE VALVE TIMING CONTROL SOLENOID VALVENLEC1321S011. Check oil passage visually for any metal debris.
2. Supply intake valve timing control solenoid valve terminals with
battery voltage.
3. Make sure that inside plunger protrudes.
If NG, replace intake valve timing control solenoid valve.
INTAKE VALVE TIMING CONTROL SOLENOID VALVEQG18DE
Diagnostic Procedure (Cont'd)
EC-480

DescriptionNLEC1248SYSTEM DESCRIPTIONNLEC1248S01
Sensor Input Signal to ECMECM func-
tionActuator
Throttle position sensor Throttle position
Swirl con-
trol valve
system
controlSwirl control valve control sole-
noid valve via swirl control
valve Ignition switch Start signal
Crankshaft position sensor (POS) Engine speed
Camshaft position sensor (PHASE) Engine speed and cylinder number
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
This system has a swirl control valve in the intake passage of each cylinder.
While idling and during low engine speed operation, the swirl control valve closes. Thus the velocity of the air
in the intake passage increases, promoting the vaporization of the fuel and producing a swirl in the combus-
tion chamber.
Because of this operation, this system tends to increase the burning speed of the gas mixture, improve fuel
consumption, and increase the stability in running conditions.
Also, except when idling and during low engine speed operation, this system opens the swirl control valve.
The solenoid valve controls swirl control valve's shut/open condition. This solenoid valve is operated by the
ECM.
OPERATIONNLEC1248S02
Engine coolant tempera-
tureThrottle position sensor
(Idle position)Engine speedSwirl control valve con-
trol solenoid valveSwirl control valve
15 - 40ÉC
(59 - 104ÉF)ON Ð
ON Closed
OFF Below 2,400 rpm*
Except above OFF Open
*: The value may vary according to accelerator pedal operation.
SEF081X
CONSULT-II Reference Value in Data Monitor
Mode
NLEC1249Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
SWRL CONT S/V+Engine speed: IdleEngine coolant temperature is
between 15ÉC (59ÉF) to 40ÉC
(104ÉF).ON
Engine coolant temperature is
above 40ÉC (104ÉF).OFF
SWIRL CONTROL VALVE CONTROL SYSTEM
(WHERE FITTED)
QG18DE
Description
EC-481

ECM Terminals and Reference Value=NLEC1250Specification 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)
104 SBSwirl control valve control
solenoid valve[Engine is running]
+Engine coolant temperature is between 15ÉC
(59ÉF) to 40ÉC (104ÉF).
+Idle speed0-1V
[Engine is running]
+Engine coolant temperature is above 40ÉC
(104ÉF).
+Idle speedBATTERY VOLTAGE
(11 - 14V)
SEF098X
Component DescriptionNLEC1251SWIRL CONTROL VALVE CONTROL SOLENOID VALVENLEC1251S01The swirl control valve control solenoid valve responds to signals
from the ECM. When the ECM sends an ON (ground) signal, the
solenoid valve is bypassed to apply intake manifold vacuum to the
swirl control valve actuator. This operation closes the swirl control
valve. When the ECM sends an OFF signal, the vacuum signal is
cut and the swirl control valve opens.
SWIRL CONTROL VALVE AND ACTUATORNLEC1251S02By controlling the solenoid valve, the actuator pulls on the lever of
the swirl control valve and closes it when vacuum accumulated in
the vacuum tank is supplied.
VACUUM TANKNLEC1251S03The vacuum tank is for accumulating vacuum to move the actua-
tor. The vacuum pressure is supplied through the one-way valve
from the intake manifold.
ONE-WAY VALVENLEC1251S04The one-way valve, located between the intake manifold and the
vacuum tank, prevents back-flow of the vacuum tank. When
installing, the colored side should face the vacuum source.
SWIRL CONTROL VALVE CONTROL SYSTEM
(WHERE FITTED)
QG18DE
ECM Terminals and Reference Value
EC-482

Wiring DiagramNLEC1254
YEC661
SWIRL CONTROL VALVE CONTROL SYSTEM
(WHERE FITTED)
QG18DE
Wiring Diagram
EC-483

Diagnostic ProcedureNLEC1255
1 INSPECTION START
Do you have CONSULT-II?
YesorNo
Ye s©GO TO 2.
No©GO TO 3.
2 CHECK OVERALL FUNCTION
With CONSULT-II
1. Start engine and let it idle.
2. Select ªSWIRL CONT SOL/Vº in ªACTIVE TESTº mode with CONSULT-II.
3. Touch ªONº and ªOFFº on CONSULT-II screen.
4. Make sure that the swirl control valve opens and closes by observing the lever movement.
SEF242Z
OK or NG
OK©INSPECTION END
NG©GO TO 4.
SWIRL CONTROL VALVE CONTROL SYSTEM
(WHERE FITTED)
QG18DE
Diagnostic Procedure
EC-484

3 CHECK OVERALL FUNCTION
Without CONSULT-II
1. Disconnect engine coolant temperature sensor harness connector.
2. Connect a resistor (1.5 - 2.0 kW) between terminals of engine coolant temperature sensor harness connector.
SEF982UB
3. Start engine and let it idle.
4. In idle with the swirl control valve set to CLOSE, verify by observing the lever movement that the valve changes to
OPEN when the engine rpm exceeds 2,400 rpm.
SEF242Z
OK or NG
OK©INSPECTION END
NG©Remove resistor. GO TO 4.
SWIRL CONTROL VALVE CONTROL SYSTEM
(WHERE FITTED)
QG18DE
Diagnostic Procedure (Cont'd)
EC-485