Geely EC718, EC718RV, EC715, EC715RV. Manual part — 80

Yes

System normal

No

Step 5

Check fuel pump relay terminal 2 voltage.

J

L

K

I

1

2

5 3

86

87

30

1

1

2

5
3

2

5
3

85

EF01

EF21

EF18

EF25

EF20

EF29

EF17

EF19

EF23

EF22

EF26

EF24

EF08

EF27

EF28

EF32

EF31

FE02-5405b

(a)

Check fuel pump relay terminal 2 voltage with a multimeter.

Standard Voltage: 11-14 V

Yes

Go to step 7

No

Step 6

Repair the main relay circuit fault.

(a)

Repair the main relay circuit fault. Refer to

2.2.7.37

DTC

P0560 P0562 P0563

.

Is fuel pump working properly?

Yes

System normal

No

Step 7

Check continuity between ECM harness connector EN01 terminal 61 and ground.

Engine

Fuel System JL4G18-D

2-235

FE02-5406b

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

(a)

Turn on the ignition switch.

(b)

Connect a test lamp between ECM harness connector EN01
terminal 61 and the body ground circuit.

(c)

Use scan tool to carry out pump relay "Action Test".

Is test lamp lit?

No

Go to step 9

Yes

Step 8

Replace ECM.

(a)

Replace ECM. Refer to

2.2.8.8

Engine Control Module

Replacement

.

Is fuel pump working properly?

Yes

System normal

No

Step 9

Check the pump relay terminal 5 voltage.

J

L

K

I

1

2

5 3

86

87

30

1

1

2

5
3

2

5
3

85

EF01

EF21

EF18

EF25

EF20

EF29

EF17

EF19

EF23

EF22

EF26

EF24

EF08

EF27

EF28

EF32

EF31

FE02-5407b

(a)

Check the pump relay terminal 5 voltage with a multimeter.

Standard Voltage: 11-14 V

Standard Voltage?

Yes

Go to step 11

2-236

Fuel System JL4G18-D

Engine

No

Step 10

Replace the fuel pump relay.

(a)

Replace the fuel pump relay.

Is fuel pump working properly?

Yes

System normal

No

Step 11

Check the fuel pump wiring harness connector SO29 terminal 3 voltage.

1

2

3

4

Fuel Pump Harness Connector SO29

FE02-5408b

(a)

Check the fuel pump wiring harness connector SO29 terminal
3 voltage with a multimeter.

Standard Voltage: 11-14 V

Is the voltage standard value?

Yes

Go to step 13

No

Step 12

Repair the circuit between fuel pump wiring harness connector SO29 terminal 3 and the fuel pump relay
terminals 5.

Engine

Fuel System JL4G18-D

2-237

1

2

3

4

Fuel Pump Harness Connector SO29

J

L

K

I

1

2

5 3

86

87

30

1

1

2

5
3

2

5
3

85

EF01

EF21

EF18

EF25

EF20

EF29

EF17

EF19

EF23

EF22

EF26

EF24

EF08

EF27

EF28

EF32

EF31

FE02-5409b

(a)

Check circuit between fuel pump wiring harness connector
SO29 terminal 3 and the fuel pump relay terminals 5.

(b)

Repair open circuit fault between fuel pump wiring harness
connector SO29 terminal 3 and the fuel pump relay terminals
5.

Is fuel pump working properly?

Yes

System normal

No

Step 13

Check the fuel pump wiring harness connector SO29 terminal 4 and the body ground circuit.

1

2

3

4

Fuel Pump Harness Connector SO29

FE02-5410b

(a)

Check resistance between fuel pump wiring harness
connector SO29 terminal 4 and the body ground with a
multimeter to confirm the ground circuit continuity.

Resistance Standard Value: Less than 1 Ω

Is fuel pump ground circuit normal?

Yes

Go to step 15

No

Step 14

Repair fuel pump wiring harness connector SO29 terminal 4 and the body ground circuit.

(a)

Repair fuel pump wiring harness connector terminal 4 and
the body SO29 ground circuit open fault.

Is fuel pump working properly?

Yes

System normal

2-238

Fuel System JL4G18-D

Engine