3. Schematic:

Refer to 

2.2.7.29

 

DTC P0321 P0322

.

4. Diagnostic Steps:

Note

Before carrying out this diagnosis step, observe the data list on scan tool and analyze the accuracy of the data, as
these will help with quick diagnosis.

Step 1

Initial Inspection

(a)

Check the sensor wiring harness connector EN15 whether
there is loose or poor connection and so on.

(b)

Check whether the sensor is installed correctly.

(c)

Check whether the sensor gap is normal.

Are above mentioned parts normal?

No

Repair the faulty part. Go to step 12

Yes

Step 2

Measure sensor 5 V reference voltage.

1

2

3

Camshaft Position Sensor Harness Connector EN15

FE02-5086b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect camshaft position sensor wiring harness
connector EN15.

(c)

Turn the ignition switch to "ON" position.

(d)

Measure voltage between camshaft position sensor wiring
harness connector EN15 terminal No.3 and a reliable ground.

Standard Voltage: 4.5-5.5 V

(e)

Connect camshaft position sensor wiring harness connector
EN15.

Is the value specified value?

No

Go to step 6

Yes

Step 3

Measure the sensor signal circuit.

Engine

Control System JL4G18-D

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1

2

3

Camshaft Position Sensor Harness Connector EN15

FE02-5087b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect camshaft position sensor wiring harness
connector EN15.

(c)

Turn the ignition switch to "ON" position.

(d)

Measure voltage between camshaft position sensor wiring
harness connector EN15 terminal No.2 and a reliable ground.

Standard Voltage: 4.5-5.5 V

(e)

Connect camshaft position sensor wiring harness connector
EN15.

Is the value specified value?

No

Go to step 7

Yes

Step 4

Test ECM internal low reference circuit.

1

2

3

Camshaft Position Sensor Harness Connector EN15

FE02-5088b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect camshaft position sensor wiring harness
connector EN15.

(c)

Turn the ignition switch to "ON" position.

(d)

Measure voltage between camshaft position sensor wiring
harness connector EN15 terminal No.1 and a reliable ground.

Standard Resistance: Less than 3 Ω

(e)

Connect camshaft position sensor wiring harness connector
EN15.

Is the value specified value?

No

Go to step 8

Yes

Step 5

Replace the camshaft position sensor. Refer to 

2.10.8.1

 

Camshaft Position Sensor Replacement

.

Next

Go to step 12

Step 6

Check the sensor 5 V reference voltage circuit.

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Control System JL4G18-D

Engine

1

3

5

7

8

6

4

2

9

10

11

12

13

23

24

25

26

27

28

29

30

37

51

52

53

54

55

56

57

58

59

60

61

62

63

64

38

39

40

41

42

43

44

45

46

47

48

49

50

31

32

33

34

35

36

14

15

16

17

18

19

20

21

22

ECM Harness Connector EN01

1

2

3

Camshaft Position Sensor Harness Connector EN15

FE02-5089b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect camshaft position sensor wiring harness
connector EN15.

(c)

Disconnect ECM harness connector EN01.

(d)

Measure resistance between camshaft position sensor
harness connector EN015 terminal No.3 and ECM harness
connector EN01 terminal No.18. Check whether the circuit is
open.

(e)

Measure resistance between camshaft position sensor
harness connector EN015 terminal No.3 and a reliable
ground. Check whether there is short to ground circuit.

(f)

Measure voltage between camshaft position sensor harness
connector EN015 terminal No.3 and power supply. Check
whether there is short to power supply circuit.

Test Items

Standard Value

Resistance Between EN15 (3) and EN01 (18)

Less than 1 Ω

Resistance Between EN15 (3) and a Reliable
Ground

10 kΩ or higher

Voltage Between EN15 (3) and a Reliable
Ground

0 V

Execute next step as per normal.

Next

Repair the faulty part. Go to step 12

Step 7

Check sensor signal circuit.

Engine

Control System JL4G18-D

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1

3

5

7

8

6

4

2

9

10

11

12

13

23

24

25

26

27

28

29

30

37

51

52

53

54

55

56

57

58

59

60

61

62

63

64

38

39

40

41

42

43

44

45

46

47

48

49

50

31

32

33

34

35

36

14

15

16

17

18

19

20

21

22

ECM Harness Connector EN01

1

2

3

Camshaft Position Sensor Harness Connector EN15

FE02-5090b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect camshaft position sensor wiring harness
connector EN15.

(c)

Disconnect ECM harness connector EN01.

(d)

Measure resistance between camshaft position sensor
harness connector EN015 terminal No.2 and ECM harness
connector EN01 terminal No.42. Check whether the circuit is
open.

(e)

Measure resistance between camshaft position sensor
harness connector EN015 terminal No.2 and a reliable
ground. Check whether the circuit is short to ground.

(f)

Measure resistance between camshaft position sensor
harness connector EN015 terminal No.2 and power supply.
Check whether the circuit is short to power supply.

Test Items

Standard Value

Resistance Between EN15 (2) and EN01
(42)

Less than 1 Ω

Resistance Between EN15 (2) and a
Reliable Ground

10 kΩ or higher

Voltage Between EN15 (2) and a Reliable
Ground

0 V

Are the values specified values?

No

Repair the faulty part. Go to step 12

Yes

Step 8

Check ECM internal low reference circuit.

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Control System JL4G18-D

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