Nissan Almera Tino V10. Manual — part 640
EC-1386
[YD (WITHOUT EURO-OBD)]
DTC P0234 TC SYSTEM
Diagnostic Procedure(YD22DDTi Engine Models)
EBS014W7
1.
CHECK VACUUM SOURCE
1.
Turn ignition switch OFF.
2.
Disconnect vacuum hose connected to turbocharger control actuator.
3.
Start engine and let it idle.
4.
Check vacuum hose for vacuum existence.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 2.
2.
CHECK VACUUM HOSES AND VACUUM GALLERY
1.
Turn ignition switch OFF.
2.
Check vacuum hoses and vacuum gallery for clogging, cracks
or improper connection.
Refer to
EC-1263, "Vacuum Hose Drawing(YD22DDTi Engine
.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace vacuum hoses and vacuum gallery.
Vacuum should exist.
MBIB0639E
SEF109L
DTC P0234 TC SYSTEM
EC-1387
[YD (WITHOUT EURO-OBD)]
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3.
CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect turbocharger boost control solenoid valve harness
connector.
3.
Turn ignition switch ON.
4.
Check voltage between turbocharger boost control solenoid
valve terminals 2 and ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors F45, M71
●
Harness for open or short between ECM relay and turbocharger boost control solenoid valve
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminals 6 and turbocharger boost control solenoid valve termi-
nals 1.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 6.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
CHECK TURBOCHARGE BOOST CONTROL SOLENOID VALVE
Refer to
EC-1390, "Component Inspection"
.
OK or NG
OK
>> GO TO 7.
NG
>> Replace turbocharger boost control solenoid valve.
MBIB0921E
Voltage: Battery voltage
MBIB0010E
Continuity should exist.
EC-1388
[YD (WITHOUT EURO-OBD)]
DTC P0234 TC SYSTEM
7.
CHECK VACUUM PUMP
Refer to
.
OK or NG
OK
>> GO TO 8.
NG
>> Replace vacuum pump assembly.
8.
CHECK TURBOCHARGER BOOST CONTROL ACTUATOR
1.
Turn ignition switch OFF.
2.
Install a vacuum pump to turbocharger boost control actuator.
3.
Make sure that the turbocharger boost control actuator rod
moves smoothly when applying vacuum of -53.3kPa (-533mbar,
-400mmHg, -15.75inHg) and releasing it.
OK or NG
OK
>> GO TO 9.
NG
>> Replace turbocharger assembly.
9.
CHECK TURBOCHARGER BOOST SENSOR
Refer to
EC-1395, "Component Inspection"
.
OK or NG
OK
>> GO TO 10.
NG
>> Replace turbocharger boost sensor.
10.
CHECK INTERMITTENT INCIDENT
Refer to
EC-1309, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Diagnostic Procedure(YD22DDT Engine Models)
EBS016LK
1.
CHECK HOSE AIR LEAKAGE
1.
Turn ignition switch OFF.
2.
Disconnect hose connected to wastegate valve actuator.
3.
Start engine and lit it idle.
4.
Check hose for air breathed out
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
MBIB0640E
Air should be breathed out.
MBIB1011E
DTC P0234 TC SYSTEM
EC-1389
[YD (WITHOUT EURO-OBD)]
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EC
2.
CHECK HOSE
1.
Turn ignition switch OFF.
2.
Check hose clogging, cracks or improper connection.
OK or NG
OK
>> GO TO 3.
NG
>> Replace turbocharger assembly.
3.
CHECK MAF SENSOR
Refer to
EC-1334, "Component Inspection"
.
OK or NG
OK
>> INSPECTION END
NG
>> Replace MAF sensor.
SEF109L
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