Geely EC718, EC718RV, EC715, EC715RV. Manual part - 204

 

  Главная      Geely     Geely Emgrand EC718, EC718RV, EC715, EC715RV. Workshop Manual year 2009

 

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Geely EC718, EC718RV, EC715, EC715RV. Manual part - 204

 

 

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

.

2.12.7.36 DTC P0340 P0341

1. DTC Descriptor:

DTC

P0340

Intake VCP Camshaft Position Sensor Status Diagnosis

DTC

P0341

Intake VCP Target Wheel Diagnosis

Camshaft position (CMP) sensor is used to detect camshaft position, and is associated with the crankshaft position. It sends signals
to the engine control module (ECM) to determine the upcoming fuel injection.

Engine Control Module (ECM) also uses the camshaft position sensor output to determine the camshaft to the crankshaft relative
position to control the valve timing of camshaft adjustment and conduct emergency operations.

Camshaft position sensor circuit includes the following:

Reference Voltage: ECM provides a reference voltage to CMP sensor harness connector EN15 terminal C via ECM harness
connector EN01 terminal No.23.

Signal Circuit: ECM receives signal voltage from CMP sensor harness connector EN15 terminal A via ECM harness connector
EN01 terminal No.56.

ECM Low Reference Voltage Circuit: ECM provides a low reference voltage to CMP sensor harness connector EN15 terminal
B via ECM harness connector EN01 terminal No.18.

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 JL4G15-D

2-731

P0340

ECM detects the engine running
but does not receive the camshaft
position sensor signal

1. ECM detects the engine running.

2. ECM detects the crankshaft

position sensor signal.

3. Camshaft position sensor signal is

lost.

1. Sensor Circuit

2. Sensor

3. Camshaft Signal Wheel

4. ECM

P0341

ECM detects the engine running,
but receives a camshaft position
sensor signal and that does not
match calibration.

1. ECM detects the engine running.

2. ECM detects the crankshaft

position sensor signal.

3. ECM detected camshaft position

sensor signal does not match the
reference crankshaft position
sensor signal.

3. Schematic:

A

B

B

A

C

Crankshaft Position Sensor

Camshaft Position Sensor

Engine 

Control 

Module

FE02-5219b

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.

2-732

Control System JL4G15-D

Engine

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 9

Yes

Step 2

Measure sensor 5 V reference voltage.

FE02-5311b

A

B

C

Camshaft Position Sensor Harness 
Connector EO15

(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 sensor signal circuit.

FE02-5312b

A

B

C

Camshaft Position Sensor Harness 
Connector EO15

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect camshaft position sensor wiring harness
connector EO15.

(c)

Turn the ignition switch to "ON" position.

(d)

Measure voltage between camshaft position sensor wiring
harness connector EN15 terminal A 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.

Engine

Control System JL4G15-D

2-733

FE02-5313b

A

B

C

Camshaft Position Sensor Harness 
Connector EO15

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect camshaft position sensor wiring harness
connector EO15.

(c)

Turn the ignition switch to "ON" position.

(d)

Measure voltage between camshaft position sensor wiring
harness connector EN15 terminal B 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.

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

A

B

C

FE02-5314b

Camshaft Position Sensor Harness 
Connector EO15

ECM Harness Connector EO01

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect camshaft position sensor wiring harness
connector EO15.

(c)

Disconnect ECM harness connector EO01.

(d)

Measure resistance between camshaft position sensor
harness connector EN015 terminal C and ECM harness
connector EN01 terminal No.23. Check whether the circuit is
open.

(e)

Measure resistance between camshaft position sensor
harness connector EN015 terminal C and a reliable ground.
Check whether there is short to ground circuit.

(f)

Measure voltage between camshaft position sensor harness
connector EN015 terminal C and power supply. Check
whether there is short to power supply circuit.

Test Items

Standard Value

Resistance Between EN15 (C) and EN01 (23)

Less than 1 Ω

Resistance Between EN15 (C) and A Reliable
Ground

10 kΩ or higher

Voltage Between EN15 (C) and A Reliable
Ground

0 V

Execute next step as per normal.

Next

Repair the faulty part. Go to step 12

2-734

Control System JL4G15-D

Engine

 

 

 

 

 

 

 

 

 

 

 

 

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