Hyundai: Engine D4FA. Manual — part 146
DIESEL CONTROL SYSTEM
FLA -455
POWER CIRCUIT INSPECTION
E21F2AC6
1.
Check power circuit voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Throttle control actuator.
3)
IG KEY "ON".
4)
Measure the voltage of Throttle control actuator connector terminal 2.
Specification : 11.5V~13.0V
5)
Is the measured voltage within the specification?
YES
▶ Go to "Control Circuit Inspection".
NO
▶ Repair E/R FUSE & RELAY BOX 15A INJ fuse and related circuit and go to "Verification of Vehicle Repair".
CONTROL CIRCUIT INSPECTION
E347EACA
1.
Check monitoring voltage in control circuit
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Throttle control actuator connector.
3)
IG KEY "ON".
4)
Measure the voltage of Throttle control actuator connector terminal 1.
specification : 3.2V~3.7V
5)
Is the measured voltage within the specification?
YES
▶ Go to "Component Inspection".
NO
▶ When voltage is not detected : Go to "2. Check open in control circuit" as follows.
▶ When high voltage is detected : Repair short to battery in control circuit and go to "Verification of Vehicle
Repair".
2.
Check open in control circuit
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Throttle control actuator connector and ECM connector.
3)
Check continuity between Throttle control actuator connector terminal 1 and ECM connector terminal 90.
FLA -456
FUEL SYSTEM
specification : Continuity ( below 1.0Ω )
4)
Is the measured resistance within the specification?
YES
▶ Repair short to ground in control circuit and go to "Verification of Vehicle Repair".
NO
▶ Repair open in control circuit and go to "Verification of Vehicle Repair".
COMPONENT INSPECTION
E10CD28F
1.
Check Throttle control actuator component resistance
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Throttle control actuator.
3)
Check the resistance of Throttle control actuator.
Specification : 23.8~31.3Ω (20℃)
1
2
EGNG011C
4)
Is the measured resistance within the specification?
YES
▶ Go to "Verification of Vehicle Repair".
NO
▶ Replace Throttle control actuator and go to "Verification of Vehicle Repair".
VERIFICATION OF VEHICLE REPAIR
E4BAA960
After a repair, it is essential to verify that the fault is corrected.
1.
After connecting Scantool select "DIAGNOSTIC TROUBLE CODES(DTCs)" mode.
2.
Clear recorded DTC using Scantool.
DIESEL CONTROL SYSTEM
FLA -457
3.
Drive the vehicle within DTC "Enable conditions" in "General information".
4.
After selecting "DIAGNOSTIC TROUBLE CODES(DTCs)" mode and check if DTC is recorded again.
5.
Are any DTCs recorded ?
YES
▶ Go to the DTC guide of recorded NO. in Scantool.
NO
▶ System operates within specification.
FLA -458
FUEL SYSTEM
DTC P2112 THROTTLE CONTROL ACTUATOR CIRCUIT LOW
COMPONENT LOCATION
E058AE56
Refer to DTC P2111.
GENERAL DESCRIPTION
EB631726
Refer to DTC P2111.
DTC DESCRIPTION
ED0F4C80
P2112 is set when "0"A in throttle control actuator is detected for more than 0.11 sec. this code is due to 1)open or short
to ground in control circuit or 2)internal open in actuator component.
DTC DETECTING CONDITION
EE479F35
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON"
ThresholdValue
• Short to GND, Wiring open
DiagnosticTime
• 110ms
Fuel Cut
NO
EGR Off
YES
Fuel Limit
NO
Fail Safe
MIL
NO
• Throttle control actuator
circuit
• Throttle control actuator
component
SPECIFICATION
EC4EABB4
Refer to DTC P2111.
SCHEMATIC DIAGRAM
EE52E6F8
Refer to DTC P2111.
SIGNAL WAVEFORM AND DATA
E7B354A1
Refer to DTC P2111.
MONITOR SCANTOOL DATA
E38765F7
1.
Connect Scantool to Data Link Connector (DLC).
2.
Warm engine up to normal operating temperature.
3.
Turn "OFF" electrical devices and A/C.
4.
Monitor "INLET THROTTLE ACTU." parameter on the Scantool.
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