Hyundai: Engine D4FA. Manual — part 144
DIESEL CONTROL SYSTEM
FLA -447
YES
▶ "2. Check variable swirl control actuator position sensor operation".
NO
▶ Replace variable swirl control actuator assy’ and go to "Verification of Vehicle Repair".
2.
Check variable swirl control actuator position sensor operation
1)
IG KEY "ON", ENGINE "ON".
2)
Keep engine at idle state.
3)
monitor the waveform of variable swirl control actuator terminal 4 with oscilloscope.
4)
Turning off engine, monitor the waveform of variable swirl control actuator at the point of operation stop.
Specification : Refer to Signal Waveform & Data "Fig.3)"
5)
Does variable swirl control actuator and position sensor operations are OK?
YES
▶ Go to "Verification of Vehicle Repair".
NO
▶ Replace variable swirl control actuator assy’ and go to "Verification of Vehicle Repair".
VERIFICATION OF VEHICLE REPAIR
E4A71BC2
Refer to DTC P2015.
FLA -448
FUEL SYSTEM
DTC P2017 INTAKE MANIFOLD RUNNER POSITION SENSOR/SWITCH
CIRCUIT HIGH(BANK 1)
COMPONENT LOCATION
E7520E1A
Refer to DTC P2015.
GENERAL DESCRIPTION
E333EFEB
Refer to DTC P2015.
DTC DESCRIPTION
E5AEB5A3
P2017 is set when variable swirl valve position sensor output voltage above 4.9V is detected for more than 0.6 sec. This
code is due to 1)open in signal circuit or ground circuit or 2)short to battery in power circuit or signal circuit.
DTC DETECTING CONDITION
E4B42D06
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON"
ThresholdValue
• Output voltage above minimum value(
above 4900mV )
DiagnosticTime
• 600ms
Fuel Cut
NO
EGR Off
NO
Fuel Limit
NO
Fail Safe
MIL
NO
• Swirl valve opened at variable
swirl control actuator failure
• Variable swirl valve position
sensor circuit
• Variable swirl valve position
sensor component
SPECIFICATION
E52A0B07
Refer to DTC P2015.
SCHEMATIC DIAGRAM
E834F408
Refer to DTC P2015.
SIGNAL WAVEFORM AND DATA
E1654208
Refer to DTC P2015.
TERMINAL AND CONNECTOR INSPECTION
EB7E8AEF
Refer to DTC P2015.
POWER CIRCUIT INSPECTION
E5D33003
1.
Check power circuit voltage
DIESEL CONTROL SYSTEM
FLA -449
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect variable swirl control actuator connector.
3)
IG KEY "ON".
4)
Measure the voltage of variable swirl control actuator connector terminal 3.
Specification : 4.8V~5.1V
5)
Is the measured voltage within the specification?
YES
▶ Go to "Signal Circuit Inspection".
NO
▶ Repair open in power circuit and go to "Verification of Vehicle Repair".
SIGNAL CIRCUIT INSPECTION
E3E6B1B3
1.
Check signal circuit voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect variable swirl control actuator connector.
3)
IG KEY "ON".
4)
Measure the voltage of variable swirl control actuator connector terminal 4.
Specification : 4.8V~5.1V
5)
Is the measured voltage within the specification?
YES
▶ Go to "Ground Circuit Inspection".
NO
▶ Go to "2. Check open in signal circuit" as follows.
2.
Check open in signal circuit
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect variable swirl control actuator connector and ECM connector.
3)
Check continuity between variable swirl control actuator connector terminal 4 and ECM connector terminal 56.
Specification : Discontinuity(Infinite Ω )
4)
Is the measured resistance within the specificaiton?
FLA -450
FUEL SYSTEM
YES
▶ Go to "Ground Circuit Inspection".
NO
▶ Repair open in signal circuit and go to "Verification of Vehicle Repair".
GROUND CIRCUIT INSPECTION
ED4C00D3
1.
IG KEY "OFF", ENGINE "OFF".
2.
Disconnect variable swirl control actuator connector.
3.
IG KEY "ON".
4.
Measure the voltage of variable swirl control actuator connector terminal 3. [ TEST "A" ]
5.
Measure the voltage between variable swirl control actuator connector terminal 3 and 5. [ TEST "B" ]
( terminal 3 : Check + prove , terminal 5 : Check - prove )
Specification : [TEST "A"] Voltage - [TEST "B"] Voltage = below 200mV
6.
Is the measured voltage within the specification?
YES
▶ Go to "Component Inspection".
NO
▶ When "B" voltage is not detected : Repair open in ground circuit and go to "Verification of Vehicle Repair".
▶ When the voltage difference between "A" and "B" is above 200mV : Eliminate the causes of excessive resistance
and go to "Verification of Vehicle Repair".
COMPONENT INSPECTION
ED445F06
1.
Check variable swirl control actuator position sensor resistance
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect variable swirl control actuator.
3)
Measure the resistance of variable swirl control actuator component terminal 3,4,5 referring "Terminal resistance
table" as follows.
Specification : Terminal resistance table
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