Hyundai Santa Fe (2006 year). Manual - part 365

FL -70

FUEL SYSTEM

SPECIFICATION

Temperature [

(

)]

-30 (-22)

-20 (-4)

-10 (14)

0 (32)

20 (68)

27.00

15.67

9.45

5.89

2.27 ~ 2.73

Resistance (k )

Temperature [

(

)]

40 (104)

50 (122)

60 (140)

70 (158)

80 (176)

1.17

0.83

0.60

0.43

0.30 ~ 0.32

Resistance (k )

EFQG052A

CIRCUIT DIAGRAM

FTS

C212

ECM (C230-A)

FTS (C212)

1

2

ECM C230-A (11)

Sensor ground

FTS

 Signal

ECM C230-A (10)

10 - GND

11 - FTS Signal

1

2

[CIRCUIT DIAGRAM]

[HARNESS CONNECTORS]

[CONNECTION INFORMATION]

Terminal

Connected to

Function

ECM

C230-A

C230-K

1

2

4

3

6

5

8 7

12

13

16

17

18

23 22

20

21

19

27 26 25 24

28

29

30

14

9

10

11

15

33 32 31

34

37

41

42

40 39 38

35

36

43

44

47 46

49 48

50

53

56

58 57

54

51

52

55

59

60
45

1

30 29

31

32

38

39

36

37

35

33

34

40

42 41

46 45 44 43

48 47

50 49

2

3

4

6

5

8

7

12 11 10 9

13

14

15

18 17

19

16

22

25

27 26

23

20

21

24

28

51

75 74
53 52

73

79 78 77 76

80

81

83 82

84

86 85

87

89 88

90

92 91

93

94

57

69 68

70

71

64

54

55

56

61

58

59

60

63 62

65

66

67

72

1

2

SCMFL6127L

DIESEL CONTROL SYSTEM

FL -71

SIGNAL WAVEFORM

This illustration shows the waveform of fuel 
temperature sensor at 50

.

The higher fuel temperature rises, the lower signal
voltage becomes.

LGJF502I

COMPONENT INSPECTION

1.

Turn ignition switch OFF.

2.

Disconnect the fuel temperature sensor connector.

3.

Measure resistance between sensor signal terminal
and ground terminal.

Specification: Refer to "SPECIFICATION".

FL -72

FUEL SYSTEM

FUEL PRESSURE REGULATOR
VALVE

INSPECTION

E58A5218

FUNCTION AND OPERATION PRINCIPLE

The Fuel Pressure Regulator Valve and the Rail Pressure
Regulator Valve are installed on high pressure pump and

common rail respectively. These valves control fuel inlet
(feed) from fuel tank via fuel filter and outlet (return) to fuel
tank of high pressure fuel circuit.
This system is called "Dual Fuel Pressure Control System"
and can precisely and quickly control the fuel pressure in
accordance with various engine conditions by controlling
the fuel inlet and outlet simultaneously.

Fuel Pressure

Regulator Valve

Rail Pressure Regulator Valve

EFQG114A

SPECIFICATION

Items

Specification

Coil Resistance (

Ω

)

2.9 ~ 3.15

Ω

[20

℃

(68

℉

)]

DIESEL CONTROL SYSTEM

FL -73

CIRCUIT DIAGRAM

FUEL PRESSURE REGULATOR VALVE

C228

1

2

ECM C230-A (49)

Battery Voltage (B+)

Valve Control

ECM C230-A (19)

[CIRCUIT DIAGRAM]

[HARNESS CONNECTORS]

[CONNECTION INFORMATION]

Terminal

Connected to

Function

ECM

C230-A

C230-K

1

2

4

3

6

5

8 7

12

13

16

17

18

23 22

20

21

19

27 26 25 24

28

29

30

14

9

10

11

15

33 32 31

34

37

41

42

40 39 38

35

36

43

44

47 46

49 48

50

53

56

58 57

54

51

52

55

59

60
45

1

30 29

31

32

38

39

36

37

35

33

34

40

42 41

46 45 44 43

48 47

50 49

2

3

4

6

5

8

7

12 11 10 9

13

14

15

18 17

19

16

22

25

27 26

23

20

21

24

28

51

75 74
53 52

73

79 78 77 76

80

81

83 82

84

86 85

87

89 88

90

92 91

93

94

57

69 68

70

71

64

54

55

56

61

58

59

60

63 62

65

66

67

72

1

2

49 - Valve Control

19 - Power Supply

ECM (C230-A)

FUEL PRESSURE 
REGULATOR VALVE(C228)

2

1

SCMFL6128L

SIGNAL WAVEFORM

Fig.1

Fig.2

Fig.1) Waveform of fuel pressure regulator valve at idle. It shows approx. 34% duty( (-)duty ).
Fig.2) Waveform of fuel pressure regulator valve as accelerating. approx. 38% duty( (-)duty ) is outputted as engine load increases.

EFQG396A

COMPONENT INSPECTION

1.

Turn ignition switch OFF.

2.

Disconnect the fuel pressure regulator valve connec-
tor.

3.

Measure resistance between terminal 1 and 2 of the
valve.

Specification: Refer to "SPECIFICATION".