Geely EC718, EC718RV, EC715, EC715RV. Manual part — 79
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 79
2.3.5 Disassemble View
2.3.5.1 Disassemble View
Oil Rail and Jet Assembly Disassemble View
1
2
3
FE02-2023b
Legend
1. Fuel Rail
2. Fuel Injectors
3. Spring Clip
Engine
Fuel System JL4G18-D
2-231
2.3.6 Schematic
2.3.6.1 Schematic
Battery
Voltage
Main
Relay
Fuel
Pump
Relay
Fuel Pump
Cylinder No.3
Fuel Injector
Cylinder No.4
Fuel Injector
Cylinder No.2
Fuel Injector
Cylinder No.1
Fuel Injector
Disable/Enable
Fuel Signal
Ignition Switch
ECM
FE02-2024b
2-232
Fuel System JL4G18-D
Engine
2.3.7 Diagnostic Information and Procedures
2.3.7.1 Diagnostic Descriptions
Refer to
Get familiar with the system functions and operations before start system diagnostics, so
that it will help to determine the correct diagnostic steps in the event of fault, more importantly, it will also help to determine whether
the customer described situations are normal.
2.3.7.2 Visual Inspection
–
Check installed aftermarket equipment that may affect the fuel system operation.
–
Check system components that are easy to access to identify whether there is an obvious damage or external leakage.
–
Check whether the recommended fuel is used and add sufficient fuel.
2.3.7.3 Fuel Pump Inoperative
Schematic:
05
12
From Battery
Main Relay
Fuel Pump
Fuel Pump Relay
Engine
Control
Module
FE02-5402b
Diagnostic Steps:
Step 1
Check fuel pump fuse EF05.
Engine
Fuel System JL4G18-D
2-233
1413 12 1110
5
1
2
3
4
6
7
8
9
G
D
C
B
E
F
A
86
86
30
87
85
86
86
87
87
87
30
30
30
85
85
85
2
2
3
3
5
5
1
1
1
2
5 3
EF06
EF02
EF30
EF05
EF16
EF04
EF03
EF15
EF12
EF10
EF1
1
EF09
EF13
EF14
FE02-5403b
Is the fuel pump fuse EF05 blown?
No
Yes
Step 2
Repair fuel pump fuse EF05 circuit.
(a)
Check fuel pump fuse EF05 circuit.
(b)
Repair fuel pump power circuit short to ground fault.
(c)
Replace the fuse EF05.
Fuse Rating: 15 A
Is fuel pump working properly?
Yes
System normal
No
Step 3
Check fuel pump relay terminal 3 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
FE02-5404b
(a)
Turn on the ignition switch.
(b)
At the same time, check the voltage of fuel pump relay
terminal 3 with a multimeter.
Standard Voltage: 11-14 V
Is voltage the Standard Value?
Yes
No
Step 4
Repair fuel pump relay terminal 3 and the fuel pump fuse EF05 circuit open fault.
(a)
Repair fuel pump relay terminal 3 and the fuel pump fuse
EF05 open circuit fault.
Is fuel pump working properly?
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Fuel System JL4G18-D
Engine
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