Hyundai: Engine D4FA. Manual — part 45
DIESEL CONTROL SYSTEM
FLA -51
68(C101-2)
-MIL CONTROL
47(C101-2))
-IMMOBILIZER DATA LINE
71(C101-2)
-FAN LOW
7(C101-2)
-FAN HIGH
Immobilizer
53(C101-1
)
-IATS SIGNAL
23(C101-1)
-BPS GND
41(C101-1
)
-ECTS GND
58(C101-1)
-ECTS SIGNAL
16(C101-2)
-IMMOBILIZER GND
13(C101-1)
- BPS SUPPLY(+5V)
92(C101-2)
-IMMOBILIZER LAMP
CONTROL
E C M
BATTERY(+) after IG key
BATTERY(+) after IG key
MIL
Glow lamp
After main relay
Battery(+)
Battery(+)
Immobilizer lamp
Engine Coolant Temp. Sensor(ECTS)
to Cluster
Boost Pressure Sensor(BPS)
Accelerator Position Sensor(APS)
69(C101-2)
-GLOW LAMP CONTROL
9(C101-2)
-APS1 SIGNAL
45(C101-2)
-APS1 SUPPLY
30(C101-2)
-APS1 GND
1
2
3
6
3
2
1
1
4
3
4
5
2
40(C101-1)
-BPS SIGNAL
8(C101-1)
-RPS GND
Rail Pressure Sensor(RPS)
28(C101-1)
-RPS SUPPLY(+5V)
43(C101-1)
-RPS SIGNAL
Crankshaft Position Sensor(CKPS)
Mass Air Flow Sensor(MAFS)
44(C101-1)
-MAFS GND
89(C101-2)
-IATS SIGNAL
27(C101-1)
-CKPS SIGNAL( + ):AT/( - ):MT
12(C101-1)-CKPS SIGNAL( - ):AT/( + ):MT
31(C101-2)
-APS2 SIGNAL
46(C101-2)
-APS2 SUPPLY
8(C101-2)
-APS2 GND
7(C101-1)
-CKPS SHIELD GND
42(C101-1)
-MAFS SIGNAL
37(C01-1)
-MAFS REFERANCE FREQUENCY
2
1
3
3
2
1
4
1
5
2
P
P
Refer to "Blower & A/C"
Diagram
EGNG106A
FLA -52
FUEL SYSTEM
4(C101-1)-RAIL PRESSURE CONTROL
VALVE(HIGH SIDE)
34(C101-1)-RAIL PRESSURE CONTROL
VALVE(LOW SIDE)
Rail Pressure Control Valve
59(C101-1)-EEGR CONTROL
After Main Relay
EGR Control Solenoid Valve
29(C101-2)-VGT CONTROL
After Main Relay
VGT Control Actuator
Injector 3
Injector 4
Injector 2
Injector 1
16(C101-1)-INJECTOR 1(HIGH SIDE)
47(C101-1)-INJECTOR 1(LOW SIDE)
1(C101-1)-INJECTOR 3(HIGH SIDE)
46(C101-1)-INJECTOR 3(LOW SIDE)
17(C101-1)-INJECTOR 4(HIGH SIDE)
33(C101-1)-INJECTOR 4(LOW SIDE)
2(C101-1)-INJECTOR 2(HIGH SIDE)
2
1
2
1
2
1
E C M
31(C101-1)-INJECTOR 2(LOW SIDE)
1
1
2
2
19(C101-1)-FUEL PRESSURE REGULATOR
VALVE(HIGH SIDE)
49(C101-1)-FUEL PRESSURE REGULATOR
VALVE(LOW SIDE)
Fuel Pressure Regulator Valve
1
2
2
90(C101-2)
-THROTTLE FLAP CONTROL
After Main Relay
Throttle Flap Actuator
1
2
1
75(C101-2)-VEHICLE SPEED
Vehicle Speed Signal
84(C101-2)-CAN HIGH
CAN High
83(C101-2)-CAN LOW
CAN Low
48(C101-2)-ENGINE SPEED
Engind Speed Signal to Tachometer
81(C101-2)-MT/AT RECOGNITION S/W(AT ONLY)
27(C101-2)-FUEL CONSUMPTION
Fuel Consumption Signal
PTC Heater
DLC
94(C101-2)-PTC HEATER CONTROL
2
1
25(C101-2)-DIAGNOSIS LINE (K-LINE)
EPS control Module
52(C101-2)-Electronic Load singal input
Neutral switch
57(C101-2)-NEUTRAL S/W SIGNAL(MT ONLY)
Clutch switch
79(C101-2)-CLUTCH S/W SIGNAL(MT ONLY)
EGNG107A
DIESEL CONTROL SYSTEM
FLA -53
10(C101-2)
-FUEL TEMPERATURE
SENSOR GND
11(C101-2)
-FUEL TEMPERATURE
SENSOR SIGNAL
51(C101-2)
-HEATED OXYGEN SENSOR
HEATER CONTROL
65(C101-2)
-HEATED OXYGEN SENSOR
CURRENT PUMPING
87(C101-2)
-HEATED OXYGEN
SENSOR SIGNAL
64(C101-2)
-HEATED OXYGEN
SENSOR SUPPLY
86(C101-2)
-HEATED OXYGEN
SENSOR GND
E C M
26(C101-1)
-VSA POSITION SENSOR
SUPPLY
6
2
1
1
2
4
3
5
5
4
3
2
1
6(C101-1)
-VSA POSITION SENSOR GND
After Main Relay
Heated Oxygen Sensor
Fuel Temperature Sensor
22(C101-2)
-A/C TRANSDUCER SUPPLY
12(C101-2)
-A/C TRANSDUCER GND
13(C101-2)
-A/C TRANSDUCER SIGNAL
30(C101-1)
-VSA MOTOR(-)
60(C101-1)
-VSA MOTOR(+)
56(C101-1)
-VSA POSITION SENSOR
SIGNAL
3
1
2
A/C Pressure Transducer
Variable Swirl Valve
Actuator(VSA)
M
EGNG108A
FLA -54
FUEL SYSTEM
ECM PROBLEM INSPECTION
PROCEDURE
ED2F36EF
1.
TEST ECM GROUND CIRCUIT: Measure resistance
between ECM and chassis ground using the backside
of ECM harness connector as ECM side check point.
If the problem is found, repair it.
Specification (Resistance)
Between terminal 2 of C01-2 connector and
chassis ground : 1Ω or less
Between terminal 4 of C01-2 connector and
chassis ground : 1Ω or less
Between terminal 6 of C01-2 connector and
chassis ground : 1Ω or less
2.
TEST ECM CONNECTOR: Disconnect the ECM con-
nector and visually check the ground terminals on
ECM side and harness side for bent pins or poor con-
tact contact pressure. If the problem is found, repair
it.
3.
If problem is not found in Step 1 and 2, the ECM could
be faulty. If so, replace the ECM with a new one, and
then check the vehicle again. If the vehicle operates
normally then the problem was likely with the ECM.
4.
RE-TEST THE ORIGINAL ECM : Install the original
ECM (may be broken) into a known-good vehicle and
check the vehicle. If the problem occurs again, re-
place the original ECM with a new one. If problem
does not occur, this is intermittent problem (Refer to
INTERMITTENT PROBLEM PROCEDURE in BASIC
INSPECTION PROCEDURE)
REPLACEMENT
E7FFA26A
CAUTION
When exchanging ECMS, be sure to input injector
data (7 digits) of each cylinder into a new ECM
using a Hi-scan(pro).
1.
After turning ignition switch off, wait for 30sec..
2.
Remove the battery cable(-).
3.
Remove the ECM connector.
AWJF301G
4.
Unfasten four mounting bolts (A).
A
AWJF303A
5.
Remove the ECM from the air cleaner assembly.
6.
Install a new ECM with air cleaner assembly.
7.
Fasten four mounting bolts.
Tightening torque : 0.8 ~ 1.2kgf·m
8.
Using a Hi-scan(pro), input the injector data (7 digits)
into a new ECM as next procedure.
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