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

Crankshaft Position Sensor Harness 
Connector EN26

1

2

3

FE02-5080b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect the crankshaft position sensor wiring harness
connector EN26.

(c)

Disconnect ECM harness connector EN01.

(d)

Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.1 and ECM
harness connector EN01 terminal No.47. Check whether the
circuit is open.

(e)

Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.1 and a reliable
ground. Check whether the circuit is short to ground.

(f)

Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.1 and power
supply. Check whether the circuit is short to power supply.

Test Items

Standard Value

Resistance Between EN26 (1) and EN01 (47)

Less than 1 Ω

Resistance Between EN26 (1) and a Reliable
Ground

10 kΩ or higher

Voltage Between EN26 (1) and a Reliable
Ground

0 V

Are the values specified values?

No

Repair the faulty part. Go to step 10

Yes

Step 6

Check sensor terminal No.2 circuit.

Engine

Control System JL4G18-D

2-155

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

Crankshaft Position Sensor Harness 
Connector EN26

1

2

3

FE02-5081b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect the crankshaft position sensor wiring harness
connector EN26.

(c)

Disconnect ECM harness connector EN01.

(d)

Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.2 and ECM
harness connector EN01 terminal No.46. Check whether the
circuit is open.

(e)

Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.2 and a reliable
ground. Check whether the circuit is short to ground.

(f)

Measure resistance between crankshaft position sensor
wiring harness connector EN26 terminal No.2 and power
supply. Check whether the circuit is short to power supply.

Test Items

Standard Value

Resistance Between EN26 (2) and
EN01 (46)

Less than 1 Ω

Resistance Between EN26 (2) and a
Reliable Ground

10 kΩ or higher

Voltage Between EN26 (2) and a
Reliable Ground

0 V

Are the values the specified values?

No

Repair the faulty part. Go to step 10

Yes

Step 7

Check sensor signal plate.

(a)

Check whether the sensor signal plate is damaged, missing
and so on.

(b)

Check whether the sensor signal plate is installed correctly.

No

Repair the faulty part. Go to step 10

Yes

Step 8

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 9

Replace ECM.

2-156

Control System JL4G18-D

Engine

Next

Step 10

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.

No

Intermittent Fault. Refer to 

2.2.7.3

 

Intermittent

Fault Check

Yes

Step 11

Diagnostic completed.

5. Repair Instructions:

Replace crankshaft position sensor. Refer to 

2.10.8.2

 

Crankshaft Position Sensor Replacement

.

2.2.7.30 DTC P0327 P0328

1. DTC Descriptor:

DTC

P0327

Knock sensor signal circuit voltage is too low

DTC

P0328

Knock sensor signal circuit voltage is too high

KS sensor to ECM feedback signal helps ECM control the ignition timing to achieve the optimal operation and the ignition system
to achieve the best performance, as well as to prevent damage to the engine by a potential knock. KS sensor is located below the
intake manifold on the cylinder. KS sensor voltage changes with the AC signal generated by the vibration with running engine. Engine
control module adjusts spark timing according to KS sensor signal amplitude and frequency.

ECM receives signals from KS sensor harness connector EN08 terminal No.1 and 2 through ECM harness connector EN01 terminal
No.30 and 31.

2. Conditions For Setting DTC and The Fault Location:

DTC Code

DTC Detection Strategy

Conditions For Setting The DTC (Control

Strategy)

Fault Locations

Engine

Control System JL4G18-D

2-157

P0327

Signal Range Too Low

1. Knock identification reference voltage

is 0.35-0.60 V.

2. It occurs for more than 30 times

successively.

3. Engine coolant temperature is greater

than 40°C (104 ºF).

4. Engine speed is greater than 2,600

rpm.

5. Cylinder No.1 can be identified.

1. Sensor Circuit

2. Sensor

3. ECM

P0328

Signal Range Too Low

1. Knock identification reference voltage

is 36-150 V.

2. It occurs more than 30 times

successively.

3. Knock control circuit has no

malfunction.

4. Jolt-limited feature is not activated.

5. Engine load is greater than 39.8%.

3. Schematic:

Knock Sensor

Engine 

Control 

Module

FE02-5082b

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Control System JL4G18-D

Engine