Start NISSAN TERRANO 2002 Service Repair Manual

Diagnostic Procedure
1 INSPECTION START
Check fuel level, fuel supplying system, starter motor, etc.
OK or NG
OKEGO TO 2.
NGECorrect.
2 CHECK INSTALLATION
Check that all glow plug connecting plate nuts are installed properly.
MEC002E
OK or NG
OK (With CONSULT-II)EGO TO 3.
OK (Without CONSULT-II)EGO TO 4.
NGEInstall properly.
3 CHECK GLOW INDICATOR LAMP OPERATION
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªCOOLAN TEMP/Sº in ªDATA MONITORº mode with CONSULT-II.
3. Confirm that ªCOOLAN TEMP/Sº indicates below 75ÉC (167ÉF). If it indicates above 75ÉC (167ÉF), cool down engine.
SEF013Y
4. Turn ignition switch ªOFFº, wait at least 5 seconds and then turn ªONº.
5. Make sure that glow indicator lamp is turned ªONº for 1.5 seconds or more after turning ignition switch ªONº, and then turned
ªOFFº.
OK or NG
OKEGO TO 5.
NGEGO TO 6.
GLOW CONTROL SYSTEMZD30DDTi
EC-242

Wiring Diagram
YEC196A
START SIGNALZD30DDTi
EC-248

Diagnostic Procedure
1 CHECK START SIGNAL OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch ªONº.
2. Check ªSTART SIGNALº in ªDATA MONITORº mode with CONSULT-II under the following conditions.
SEF604X
Without CONSULT-II
Check voltage between ECM terminal 20 and ground under the following conditions.
SEF415Y
OK or NG
OKEINSPECTION END
NGEGO TO 2.
2 CHECK START SIGNAL INPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector and ignition switch harness connector.
3. Check harness continuity between ECM terminal 20 and ignition switch terminal 5. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OKEGO TO 4.
NGEGO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M787, F66 (LHD models)
IHarness for open or short between ECM and ignition switch
ERepair open circuit or short to ground or short to power in harness or connectors.
START SIGNALZD30DDTi
EC-249

4 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
EINSPECTION END
START SIGNALZD30DDTi
Diagnostic Procedure (Cont'd)
EC-250

Diagnostic Procedure
1 INSPECTION START
Do you have CONSULT-II?
YesorNo
Ye sEGO TO 2.
NoEGO TO 3.
2 CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch ªONº.
2. Check ªWARM UP SWº in ªDATA MONITORº mode with CONSULT-II under the following conditions.
SEF302Z
OK or NG
OKEINSPECTION END
NGEGO TO 4.
3 CHECK OVERALL FUNCTION
Without CONSULT-II
1. Turn ignition switch ªONº.
2. Check voltage between ECM terminal 59 and ground under the following conditions.
SEF303Z
OK or NG
OKEINSPECTION END
NGEGO TO 4.
HEAT UP SWITCHZD30DDTi
EC-260

Description
SYSTEM DESCRIPTION
Sensor Input Signal to ECMECM
FunctionActuator
Ignition switch Start signal
Swirl
control
valve
controlSwirl control valve control solenoid valve
"Vacuum signal
Swirl control valve actuator
"Swirl control valve Crankshaft position sensor (TDC) Engine speed
PNP switch Park/Neutral position signal
Engine coolant temperature sensor Engine coolant temperature
This system has a swirl control valve in the throttle body.
While idling and during low engine speed operation, the swirl con-
trol 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 combustion chamber.
Because of this operation, this system tends to increase the burn-
ing 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. In this condition, this
system tends to increase power by improving intake efficiency via
reduction of intake flow resistance, intake flow.
The solenoid valve controls swirl control valve's shut/open condi-
tion. This solenoid valve is operated by the ECM.
PNP switch Engine speedEngine cool-
ant tempera-
tureSwirl control
valve control
solenoid valveSwirl control
valve
OFFLess than
1,250 rpmLess than
50ÉC (122ÉF)OFF Open
More than
50ÉC (122ÉF)ON Closed
More than
1,250 rpmLess than
50ÉC (122ÉF)OFF Open
More than
50ÉC (122ÉF)OFF Open
ON Ð Ð OFF Open
SEF452Z
SWIRL CONTROL VALVE CONTROL SOLENOID VALVEZD30DDTi
EC-263

Diagnostic Procedure
1 INSPECTION START
Do you have CONSULT-II?
YesorNo
Ye sEGO TO 2.
NoEGO TO 3.
2 CHECK OVERALL FUNCTION
With CONSULT-II
1. Start engine and let it idle.
2. Select ªSWIRL CONT S/V 1º in ªACTIVE TESTº mode with CONSULT-II.
3. Touch ªONº and ªOFFº alternately on CONSULT-II screen.
4. Make sure that swirl control valve actuator rod moves according to ªSWIRL CONT S/V 1º indication.
MEC007E
MEC008E
OK or NG
OKEINSPECTION END
NGEGO TO 4.
SWIRL CONTROL VALVE CONTROL SOLENOID VALVEZD30DDTi
EC-266

3 CHECK OVERALL FUNCTION
Without CONSULT-II
1. Lift up the vehicle.
2. Start engine and warm it up to normal operating temperature.
3. Run engine at idle speed.
4. Make sure that swirl control valve actuator rod moves when shifting the shift lever to ªPº or ªNeutralº position and then to posi-
tions other than ªPº and ªNeutralº.
MEC008E
OK or NG
OKEINSPECTION END
NGEGO TO 5.
SWIRL CONTROL VALVE CONTROL SOLENOID VALVEZD30DDTi
Diagnostic Procedure (Cont'd)
EC-267

4 CHECK VACUUM SOURCE
With CONSULT-II
1. Turn ignition switch ªOFFº.
2. Disconnect vacuum hose connected to swirl control valve actuator.
3. Start engine and let it idle.
4. Select ªSWIRL CONT S/V 1º in ªACTIVE TESTº mode with CONSULT-II.
5. Touch ªONº and ªOFFº alternately on CONSULT-II screen.
6. Check vacuum hose for vacuum existence under the following conditions.
MEC007E
MEC009E
MTBL1326
OK or NG
OKEGO TO 7.
NGEGO TO 6.
SWIRL CONTROL VALVE CONTROL SOLENOID VALVEZD30DDTi
Diagnostic Procedure (Cont'd)
EC-268

5 CHECK VACUUM SOURCE
Without CONSULT-II
1. Turn ignition switch ªOFFº.
2. Disconnect vacuum hose connected to swirl control valve actuator.
3. Lift up the vehicle.
4. Start engine and warm it up to normal operating temperature.
5. Run engine at idle speed
6. Check vacuum hose for vacuum existence under the following conditions.
MEC009E
MTBL1327
OK or NG
OKEGO TO 7.
NGEGO TO 6.
SWIRL CONTROL VALVE CONTROL SOLENOID VALVEZD30DDTi
Diagnostic Procedure (Cont'd)
EC-269