2. Run the engine for no longer than 5 s.

Step 9

Use a properly working spark plug and check whether there is misfire cylinder arcing.

(a)

Replace the installed spark plug with a spark plug that works
properly.

(b)

Test spark plug.

(c)

Remove misfire cylinder ignition wires.

(d)

Disconnect all fuel injector cylinder connectors.

(e)

Install the ignition wires to the spark plug.

(f)

Run the engine (the engine running time no longer than 5 s)
and check the arcing.

(g)

Reconnect all cylinder fuel injector connectors.

(h)

Install the ignition wires.

Is spark plug arcing normal?

No

Check the ignition coil and ignition wire. Go to
step 17

Yes

Replace the spark plug. Refer to

2.10.8.4

 

Spark Plug Replacement

. Go to step

17

Step 10

Check ECM control connector terminal voltage of the misfire cylinder fuel injector.

FE02-5273b

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

ECM Harness Connector EO01

(a)

Turn the ignition switch to the "ON" position.

(b)

Remove ECM harness connector EO01.

(c)

Measure ECM harness connector EN01 terminal voltage
according to the following table.

Connector Terminal

Standard Value

EO01 (65)

9-14 V

EO01 (63)

EO01 (64)

EO01 (66)

Is voltage the specified value?

No

Check the fuel injector circuit. Refer to

2.12.7.29

 

DTC P0261 P0262

.

Yes

Step 11

Check the misfire cylinder valve gap.

(a)

Refer to the "Engine Mechanical System" in
the

2.6.8.20

 

Valve Clearance Adjustments

, Is valve clearance

normal?

No

Adjust the valve clearance. Go to step 17

Engine

Control System JL4G15-D

2-719

Yes

Step 12

Check valve timing system.

(a)

Refer to the "Engine Mechanical System" in the

2.6.8.9

 

Timing

Chain Cover Replacement

, Is valve timing normal?

No

Adjust the valve timing. Go to step 17

Yes

Step 13

Check the fuel pressure.

(a)

Refer to "Fuel System" in the

2.3.7.7

 

Fuel Pressure Testing

Procedure

, Is fuel pressure normal?

No

Check fuel system: fuel pump, fuel filter, fuel
pipe circuit and fuel pressure regulator.

Yes

Step 14

Check whether the data in the data stream table is normal.

(a)

Check intake air pressure sensor data.

(b)

Check engine coolant temperature sensor data.

(c)

Check throttle position sensor.

Are these components normal?

No

Replace the damaged components. Go to
step 17

Yes

Step 15

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 16

Replace ECM.

(a)

Carry out crankshaft self learn after ECM replacement. Refer
to 

2.12.7.11

 

Crankshaft Position Sensor (CKP) Learn

.

Next

Step 17

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.

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Control System JL4G15-D

Engine

(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 18

Diagnostic completed.

5. Repair Instructions:

Replace the spark plug. Refer to 

2.10.8.4

 

Spark Plug Replacement

.

2.12.7.34 DTC P0324 P0325

1. DTC Descriptor:

DTC

P0324

Knock Control System Malfunction

DTC

P0325

Knock Sensor Malfunction

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.12 and 28.

2. Conditions For Setting DTC and The Fault Location:

DTC Code

DTC Detection Strategy

Conditions For Setting The DTC

(Control Strategy)

Fault Locations

P0324

Shock Control System

Malfunction

1. Engine speed is higher than 1,600 rpm.

2. Certain Load Conditions.

3. Sensor signal circuit is short to ground.

1. Sensor Circuit

2. Sensor

3. ECM

P0325

Knock Sensor Malfunction

1. Engine speed is higher than 1,600 rpm.

2. Certain Load Conditions.

3. Sensor Signal Circuit Open.

Engine

Control System JL4G15-D

2-721

3. Schematic:

1

2

EO01

EO01

12

28

KNOCK HI

KNOCK LO

Knock Sensor

Engine 

Control 

Module

FE02-5274b

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 whether there is KS sensor physical damage.

(b)

Check whether KS sensor is installed correctly. Torque is set
too tight or too loose will trigger DTC codes.

(c)

Check KS sensor installation surface whether there are
glitches, casting flash and foreign matter.

(d)

Knock sensor must be kept away from hoses, brackets and
engine wires.

Are above mentioned parts normal?

No

Repair the faulty part. Go to step 9

Yes

Step 2

Read the engine data (engine speed) on the scan tool.

(a)

Connect scan tool to datalink connector.

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Control System JL4G15-D

Engine