Hyundai Santa Fe (2006 year). Manual - part 424

FL -306

FUEL SYSTEM

1

2

3

4

1

2

3

4

EGNG004B

5.

Does brake switch operate correctly?

YES

▶

Go to "Verification of Vehicle Repair".

NO

▶

Unless any problem is detected after checking height of brake pedal, replace brake switch component and go to

"Verification of Vehicle Repair".

VERIFICATION OF VEHICLE REPAIR

E38D2612

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.

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.

DTC TROUBLESHOOTING PROCEDURES

FL -307

DTC P0532 A/C REFRIGERANT PRESSURE SENSOR "A" CIRCUIT LOW
INPUT

COMPONENT LOCATION

E567B01B

APT

SCMFL6506L

GENERAL DESCRIPTION

E0804A39

A/C pressure transducer consists of piezoelectric element and it detects aircon refrigerant pressure. Piezoeletric type is
more advantageous to obtain linear data of pressure than existing switch type. Thus, optimum control of aircon compres-
sor and fan is realized and improved fuel efficiency follows with it.

DTC DESCRIPTION

E1FD20AE

P0532 is set when the voltage below 0.18V - minimum voltage of A/C pressure transducer signal - is detected for more
than 0.6 sec.. This code is due to 1) open in power circuit or 2) open or short to ground in signal circuit of A/C pressure
transducer.

DTC DETECTING CONDITION

E4D0AD11

Item

Detecting Condition

Possible Cause

DTC Strategy

• Voltage monitoring

Enable Conditions

• IG KEY "ON"

Threshold Value

• When output voltage is below the minimum

value (below 0.18V)

Diagnostic Time

• 0.6 sec.

Fuel cut

NO

EGR Off

NO

Fuel Limit

NO

Fail Safe

Check

Lamp

NO

• A/C pressure fixed at 50 hPa

• A/C pressure transducer

circuit

• A/C pressure transducer

component

FL -308

FUEL SYSTEM

SPECIFICATION

EF7D07B1

Sensor output characteristic

Max voltage

4.5[V]

Max voltage

0.5[V]

0.0

0.0 kg/

32.0 kg/

Pressure

abnormal low
pressure range

normal
pressure range

abnormal high
pressure range

LFIG438A

SCHEMATIC DIAGRAM

EA3F8DFC

1

C230-K  terminal 22

C230-K  terminal 13

C230-K  terminal 12

2

3

22 Sensor power

C235 A/C pressure transducer

 A/C pressure transducer

C235

C230-K ECM

13 Sensor signal

12 Sensor ground

Sensor power

Sensor signal

Sensor ground

2

1

3

P

1

2

3

Terminal

Connected to

Function

C230-K

C230-A

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

ECM

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

[CIRCUIT DIAGRAM]

[HARNESS CONNECTOR]

[CONNECTOR INFORMATION]

SCMFL6402L

DTC TROUBLESHOOTING PROCEDURES

FL -309

SIGNAL WAVEFORM AND DATA

EA9D3A88

Fig.1

Fig.1) Waveform of A/C pressure transducer in accordance with aircon operation.(aircon compressor operation)

A/C "ON"

A/C "OFF"

LFIG440A

NOTE

Output signal(voltage) changes in accordance with the amount of refrigerant and the change of weather. Check if
normal pressure change occurs in accordance with aircon compressor operation at normal pressure range shown in
"Specification".

MONITOR SCANTOOL DATA

E0034705

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 " A/C PRESSURE SENSOR " parameter on the scantool.

Specification : A/C "OFF" : 1200mV~1800mV
A/C "ON" : higher than A/C "OFF" pressure by more than 500mV