Nissan Terrano model r20 series 2004. Instruction — part 142
ECM Terminals and Reference Value
Specification 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 damage the
ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
101
Y
Variable nozzle turbo-
charger control solenoid
valve
Engine is running.
Warm-up condition
Idle speed
Approximately 6.8V
SEF253Z
Engine is running.
Warm-up condition
Engine speed is 2,000 rpm
Approximately 11V
SEF254Z
VARIABLE NOZZLE TURBOCHARGER CONTROL
SOLENOID VALVE
ZD30DDTi
EC-290
Wiring Diagram
YEC201A
VARIABLE NOZZLE TURBOCHARGER CONTROL
SOLENOID VALVE
ZD30DDTi
EC-291
Diagnostic Procedure
1
CHECK OVERALL FUNCTION
1. Start engine and let it idle.
2. Make sure that variable nozzle turbocharger control actuator rod moves when revving engine up to 3,000 rpm and returning to
idle.
MEC015E
OK or NG
OK
E
INSPECTION END
NG
E
GO TO 2.
2
CHECK VACUUM SOURCE
1. Turn ignition switch “OFF”.
2. Disconnect vacuum hose connected to variable nozzle turbocharger control actuator.
3. Start engine and let it idle.
4. Check vacuum hose for vacuum existence.
MEC016E
Vacuum should exist.
OK or NG
OK
E
GO TO 3.
NG
E
GO TO 5.
VARIABLE NOZZLE TURBOCHARGER CONTROL
SOLENOID VALVE
ZD30DDTi
EC-292
3
CHECK VARIABLE NOZZLE TURBOCHARGER CONTROL ACTUATOR
1. Turn ignition switch “OFF”.
2. Install a vacuum pump to variable nozzle turbocharger control actuator.
3. Make sure that the variable nozzle turbocharger control actuator rod moves smoothly when applying vacuum of −53.3 kPa (−533
mbar, −400 mmHg, −15.75 inHg) and releasing it.
MEC017E
OK or NG
OK
E
GO TO 4.
NG
E
Replace turbocharger assembly.
4
CHECK VACUUM HOSE
1. Turn ignition switch “OFF”.
2. Check vacuum hoses and vacuum gallery for clogging, cracks or improper connection.
SEF109L
OK or NG
OK
E
GO TO 9.
NG
E
Repair or replace vacuum hoses and vacuum gallery.
VARIABLE NOZZLE TURBOCHARGER CONTROL
SOLENOID VALVE
ZD30DDTi
Diagnostic Procedure (Cont’d)
EC-293
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