Geely EC718, EC718RV, EC715, EC715RV. Manual part — 222

No

Step 16

Replace the fuel pump.

(a)

Replace the fuel pump. Refer to

2.3.8.3

Fuel Pump Assembly

Replacement

.

Confirm repair completed.

Next

Step 17

System normal.

2.13.1.2 All Fuel Injectors Inoperative

Schematic:

12

IGN

PWR GND

3

65

63

64

66

62

Main Relay

From Battery

Engine

Control

Module

Fuel Injector 1

Fuel Injector 4

Fuel Injector 2

Fuel Injector 3

To Ignition Switch

FE02-5502b

Diagnostic Steps:

Step 1

Check whether the engine anti-theft system is activated.

Does engine trouble indicator light flashes?

No

Go to step 3

Engine

Fuel System JL4G15-D

2-803

Yes

Step 2

Repair the engine anti-theft system malfunction.

(a)

Repair the engine anti-theft system malfunction. Refer to

2.5.7.12

Engine Anti-theft Warning Lamp Flashing, Vehicle

Can Not Start

.

Is fuel injector working properly?

Yes

System normal

No

Step 3

Check ECM fuse.

IF14

IF2

IF1

IF5

IF7

IF3

IF16

IF27

IF25

IF26

IF28

IF30

IF24

IF20

IF19

IF23

IF18

IF21

IF13

IF12

IF15

IF9

IF10

IF8

F17

F22

M

FE02-5412b

Check whether ECM fuse IF12 is blown?

No

Go to step 6

Yes

Step 4

Check ECM power supply circuit.

FE02-5503b

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 EO35

(a)

Repair ECM power supply short to body ground fault.

(b)

Replace the fuse IF12.

Is fuel injector working properly?

Yes

System normal

No

Step 5

Inspect and repair ECM ground circuit.

2-804

Fuel System JL4G15-D

Engine

FE02-5504b

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 EO35

(a)

Check ECM ground circuit.

(b)

Repair open circuit ECM connector EO35 terminal No.73 and
the body.

Is fuel injector working properly?

Yes

System normal

No

Step 6

Check fuel injector wiring harness connector terminal No.2 voltage.

FE02-5505b

Fuel Injector 1 Harness Connector EO11

(a)

Turn on the switch.

(b)

Measure fuel injector wiring harness connector terminal No.
3 voltage with a multimeter.

Standard voltage:11-14 V

Is the voltage Standard Value?

Yes

Go to step 8

No

Step 7

Repair main relay circuit malfunction.

(a)

Repair main relay circuit malfunction. Refer to

2.12.7.49

DTC

P0685

.

Is fuel injector working properly?

Yes

System normal

No

Step 8

Check the fuel injector wiring harness connector terminal No.1 periodical low voltage waveform.

Engine

Fuel System JL4G15-D

2-805

FE02-5506b

Fuel Injector 1 Harness Connector EO11

(a)

Turn on the ignition switch and try to Start the engine.

(b)

At the same time, check the fuel injector wiring harness
connector terminal No.1 periodical low voltage waveform.

Is there a periodical low voltage waveform?

Yes

Go to step 10

No

Step 9

Replace ECM.

(a)

Replace ECM. Refer to

2.2.8.8

Engine Control Module

Replacement

.

Is fuel injector working properly?

Yes

System normal

No

Step 10

Replace fuel injectors.

(a)

Replace fuel injectors. Refer to

2.2.8.2

Fuel Injector

Replacement

.

Confirm repair completed.

Next

Step 11

System normal.

2-806

Fuel System JL4G15-D

Engine