(b)

Turn the ignition switch to "ON" position.

(c)

Select "Engine"/"Read Data"/"Knock Sensor Signal 1".

(d)

Start and run the engine at normal working temperature.

(e)

Road test the vehicle and read the engine speed data on the
scan tool.

Is data normal?

Standard Value: Normal data. Refer to 

2.12.7.9

 

Data Stream List

.

No

Go to step 4

Yes

Step 3

Intermittent Fault. Refer to 

2.12.7.4

 

Symptoms Table

.

Step 4

Check the knock sensor.

Knock Sensor

FE02-5083b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect Knock Sensor harness connector EN08.

(c)

Measure knock sensor resistance.

Standard Resistance: >1M Ω at 25°C(77 ºF)

(d)

Connect Knock Sensor harness connector EN08.

Is resistance normal?

No

Replace the knock sensor. Refer to

2.10.8.5

 

Knock Sensor Replacement

.

Yes

Step 5

Check sensor terminal No.1 line.

Engine

Control System JL4G15-D

2-723

1

2

1

17

33

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Knock Sensor Harness Connector EO08

ECM Harness Connector EO01

FE02-5275b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect Knock Sensor harness connector EN08.

(c)

Disconnect ECM harness connector EO01.

(d)

Measure resistance between knock sensor harness
connector EN08 terminal No.1 and ECM harness connector
EN01 terminal No.12. Check whether the circuit is open.

(e)

Measure resistance between knock sensor harness
connector EN08 terminal No.1 and a reliable ground. Check
whether the circuit is short to ground.

(f)

Measure voltage between knock sensor harness connector
EN08 terminal No.1 and a reliable ground. Check whether
the circuit is short to power supply.

Test Items

Standard Value

Resistance Between EN08 (1) and EN01 (12)

Less than 1 Ω

Resistance Between EN08 (1) and A Reliable
Ground

10 kΩ or higher

Voltage Between EN08 (1) and A Reliable
Ground

0 V

Are the values specified values?

No

Repair the faulty part. Go to step 9

Yes

Step 6

Check sensor terminal No.2 circuit.

2-724

Control System JL4G15-D

Engine

1

2

1

17

33

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Knock Sensor Harness Connector EO08

ECM Harness Connector EO01

FE02-5276b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect Knock Sensor harness connector EO08.

(c)

Disconnect ECM harness connector EO01.

(d)

Measure resistance between knock sensor harness
connector EN08 terminal No.2 and ECM harness connector
EN01 terminal No.28. Check whether the circuit is open.

(e)

Measure resistance between knock sensor harness
connector EN08 terminal No.2 and a reliable ground. Check
whether the circuit is short to ground.

(f)

Measure voltage between knock sensor harness connector
EN08 terminal No.2 and power supply. Check whether the
circuit is short to power supply.

Test Items

Standard Value

Resistance Between EN08 (2) and EN01 (28)

Less than 1 Ω

Resistance Between EN08 (2) and A Reliable
Ground

10 kΩ or higher

Voltage Between EN08 (2) and A Reliable
Ground

0 V

Are the values specified values?

No

Repair the faulty part. Go to step 9

Yes

Step 7

Check ECM power supply circuit.

(a)

Check whether ECM power supply circuit is normal.

(b)

Check whether ECM ground circuit is normal.

No

Repair the faulty part.

Yes

Step 8

Replace ECM.

(a)

Carry out crankshaft self learn after ECM replacement. Refer
to 

2.12.7.11

 

Crankshaft Position Sensor (CKP) Learn

.

Next

Step 9

Use scan tool to confirm whether the DTC code is stored again.

(a)

Connect scan tool to the datalink connector.

(b)

Turn the ignition switch to "ON" position.

(c)

Clear DTC code.

(d)

Start and run the engine at idle speed to warm up the engine
for at least 5 min.

(e)

Road test the vehicle for at least 10 min.

(f)

Read control system DTC code again to confirm that the
system has no DTC code.

Engine

Control System JL4G15-D

2-725

No

Intermittent Fault. Refer to 

2.2.7.3

 

Intermittent

Fault Check

.

Yes

Step 10

Diagnostic completed.

5. Repair Instructions:

Replace the knock sensor. Refer to 

2.10.8.5

 

Knock Sensor Replacement

.

2.12.7.35 DTC P0335 P0336

1. DTC Descriptor:

DTC

P0335

Crankshaft Position Sensor Circuit No Signal

DTC

P0336

Crankshaft Position Sensor Circuit Signal Interference

CKP sensor signals ECM current crankshaft speed and position. CKP sensor produces an alternating voltage with different amplitude
and frequency. Frequency depends on the crankshaft speed, the output AC voltage depends on the CKP. The CKP sensor works
in conjunction with a 58X reluctor wheel that is attached to the crankshaft. ECM calculates the ignition timing, injection timing, and
knock ignition timing based on CKP sensor and camshaft position sensor input signals. CKP sensor is also used to detect misfire
and tachometer display. ECM uses CAN network to send the engine speed signal to the instrument cluster.

CKP  sensor  signal  is  sent  through  CKP  sensor  harness  connector  EO26  terminals  A,  B  to  ECM  harness  connector  No.EO01
terminals No.21 and 20.

2. Conditions For Setting DTC and The Fault Location:

DTC Code

DTC Detection Strategy

Conditions For Setting The DTC

(Control Strategy)

Fault Locations

P0335

Hardware Circuit Checks

1. During startup, the crankshaft

position sensor is disconnected,
short to Ground and short to
power supply.

2. Fault timer accumulated time is

longer than 2 s.

1. Sensor Circuit

2. Sensor

3. ECM

4. Sensor Signal Plate

P0336

Hardware Circuit Checks

1. Crankshaft position sensor and

the signal tooth gap is too large.

2. The difference between actual

identified number of teeth and 58
teeth is bigger than a specified
value.

1. Sensor Circuit

2. Sensor

3. ECM

4. Sensor Signal Plate

2-726

Control System JL4G15-D

Engine