Hyundai Santa Fe (2006 year). Manual — part 579

FLA -382

FUEL SYSTEM

4.

Is the measured voltage within specification?

YES

▶ Go to "Signal Circuit Inspection" procedure.

NO

▶ Repair open or short to ground in harness, and go to "Verification of Vehicle Repair" procedure.

SIGNAL CIRCUIT INSPECTION

E1FE1902

1.

Check short in harness

1)

IG "OFF" and disconnect CMPS connector.

2)

Measure resistance between terminals 1 and 3 of CMPS(B1) harness connector.

Specification : Infinite

3)

Is the measured resistance within specification?

YES

▶ Go to "Check short to ground in harness’ as follows.

NO

▶ Repair short in harness, and go to "Verification of Vehicle Repair" procedure.

2.

Check short to ground in harness

1)

IG "OFF" and disconnect CMPS connector and PCM connector.

2)

Measure resistance between terminal 3 of CMPS(B1) harness connector and chassis ground.

Specification : Infinite

3)

Is the measured resistance within specification?

YES

▶ Go to "Component Inspection" procedure.

NO

▶ Repair short to ground in harness, and go to "Verification of Vehicle Repair" procedure.

COMPONENT INSPECTION

E544CFDB

1.

Check CMPS

1)

IG "OFF" and connect scantool.

2)

ENG "ON" and Measure signal waveform at terminal 3 of CMPS.

DTC TROUBLESHOOTING PROCEDURES

FLA -383

REFERENCE SIGNAL WAVEFORM :

C10-1

1

2

3

1. Reference Voltage (+5V)
2. Sensor ground
3. CMPS [Bank 1] signal

SCMF16310L

3)

Is the measured siganl waveform normal?

YES

▶ Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM
and go to "Verification of Vehicle Repair" procedure.

NO

▶ Substitute with a known - good CMPS and check for proper operation. If the problem is corrected, replace
CMPS and go to "Verification of Vehicle Repair" procedure.

NOTE

There is a memory reset function on scantool that can erase optional parts automatically detected and memorized
by PCM. After testing PCM on the vehicle, use this function to reuse the PCM on the others

VERIFICATION OF VEHICLE REPAIR

EFE1E6C7

Refer to DTC P0340.

FLA -384

FUEL SYSTEM

DTC P0346 CAMSHAFT POSITION SENSOR "A" CIRCUIT
RANGE/PERFORMANCE (BANK 2)

COMPONENT LOCATION

EE329BAD

CMPS [Bank 2]

ECTS

LGLG510A

GENERAL DESCRIPTION

ECCCBCC7

The Camshaft Position Sensor (CMPS) is a sensor that detects the compression TDC of the NO. 1 cylinder. The CMPS
consists of a hall type sensor and a target on the end of the intake camshaft. When the target triggers the sensor, the
sensor voltage is 5V. If not, the sensor voltage is 0V. These CMPS signal is sent to the ECM and the ECM uses the CMPS
signal for synchronizing the firing of sequential fuel injectors.

DTC DESCRIPTION

E7C4F9E2

Checking oputput signals from CMP during engine running, if the expected number of cam tooth count is not observer.
PCM sets P0346. MIL(Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving cycle.

DTC DETECTING CONDITION

E6BFC1A6

Item

Detecting Condition

Possible cause

DTC Strategy

• Check if CAM sensor is synchronized correctly

Enable Conditions

• Engine running state

Threshold value

• Cam tooth count ≠ 6

Diagnosis Time

• Continuous

MIL On Condition

• 2 driving cycles

• Poor connection
• Open or short in harness
• electrical noise
• Target wheel
• CMPS
• PCM

DTC TROUBLESHOOTING PROCEDURES

FLA -385

SCHEMATIC DIAGRAM

E43C80D5

CMPS [BANK 1]

PCM

C10-1

C30-B

PCM (C30-B)

CMPS [BANK 1]

CMPS [BANK 1]

(C10-1)

CMPS [BANK 2]

(C10-2)

1

2

CMPS [BANK 2]

1

2

CMPS [BANK 2]

C10-2

1

2

3

1

2

3

1

21

2

22

3

23

4

24

5

25

6

26

7

27

8

28

9

29

10

30

11

31

12

32

13

33

14

34

15

35

16

36

17

37

18

38

19

39

20

40

41

61

42

62

43

63

44

64

45

65

46

66

47

67

48

68

49

69

50

70

51

71

52

72

53

73

54

74

55

75

56

76

57

77

58

78

59

79

60

80

PCM C30-B (18)

Sensor ground

Reference Voltage

(+5V)

PCM C30-B (17)

Sensor ground

3

3

PCM C30-B (25)

CMPS [Bank 1] signal

PCM C30-B (24)

PCM C30-B (15)

PCM C30-B (32)

CMPS [Bank 2] signal

Reference Voltage

(+5V)

18 - GND

32 - Reference Voltage (+5V)

15 - Reference Voltage (+5V)

2

3

25 - CMPS

[Bank 1] Signal

1

17 - GND

2

3

24 - CMPS

[Bank 2] Signal

1

[CIRCUIT DIAGRAM]

[HARNESS CONNECTORS]

[CONNECTION INFORMATION]

Terminal

Connected to

Function

Terminal

Connected to

Function

SCMF16108L

SIGNAL WAVEFROM AND DATA

E536A47E

This example shows a typical Crankshaft Position Sensor(CKPS) and Camshaft Position Sensor(CMPS) waveform at idle.
The PCM controls the injection and ignition timing by using these signals. Generally CKPS signal is used to detect the piston’s
position and CMPS signal is used to detect the Top Dead Center of each cylinder.

EGRF610R