Geely EC718, EC718RV, EC715, EC715RV. Manual part — 174
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 174
Symptoms
Suspected Faulty Items
Relevant Sections
6. Ignition System: Ignition Wires, Spark Plug,
Ignition Coil
Refer to
7. ECM Power Supply Circuit
Refer to
8. Engine Coolant Temperature Sensor
Refer to
9. Electronic Throttle Body
Refer to
10. Acceleration Pedal Position Sensor
Refer to
Backfire, Pinging
Fault Definition: Unburned gases enter
the intake manifold or the exhaust
system, ignited, producing a very loud
cracking sound.
1. ECM Power Supply Circuit
Refer to
2. Fuel Pressure Abnormal
Refer to
3. Fuel Contamination
4. Injector Working Abnormal
5. Air Leakage In Intake System and Crankcase Refer to
in
6. Crankcase Ventilation Valve
7. Knock Sensor (KS) System Ignition Delay Too
Great
Refer to
8. Spark Plug: Thermal value is incorrect, damp,
crack, gap is incorrect, excessive erosion,
excessive carbon residue, contaminated by fuel
Refer to
9. Spark Plug Wire Damage
10. Ignition Coil Damage
11. Coolant Level Too Low, Thermostat
Malfunction
Surge
Fault Definition: When the throttle
opening is stable, the engine power
changes. The vehicle speed changes
while the acceleration pedal position
does not change.
1. ECM Power Supply Circuit
Refer to
2. Air-Conditioning Compressor
Refer
to
3. Heated Oxygen Sensor Abnormal
Refer to
4. Poor Fuel Quality, Fuel Contamination
Refer to
5. Fuel Pressure Abnormal
6. Injector Working Abnormal
7. Mixture Too Rich
Refer to
8. Mixture Too Lean
Engine
Control System JL4G15-D
2-611
Symptoms
Suspected Faulty Items
Relevant Sections
9. Intelligent Variable Valve Timing System
Refer to
in
10. Vacuum Hose Cracking or Kink, The
Connection Unreliable
11. Spark Plug: Thermal value is incorrect,
damp, crack, gap is incorrect, excessive
erosion,
excessive
carbon
residue,
contaminated by fuel
Refer to
12. Spark Plug Wire Damage
13. Ignition Coil Damage
Power Shortage
Fault Definition: The engine power
output is lower than expected. Half-
press the acceleration pedal, almost no
acceleration or no acceleration at all.
1. ECM Power Supply Circuit
Refer to
2. Air Filter Blocked
-
3. Poor Fuel Quality, Fuel Contamination
Refer to
4. Fuel Pressure Abnormal
5. Injector Working Abnormal
6. Mixture Too Rich
Refer to
7. Mixture Too Lean
8. Knock Sensor (KS) system ignition delay is
too large
Refer to
9. Spark Plug: Thermal value is incorrect, damp,
crack, gap is incorrect, excessive erosion,
excessive carbon residue, contaminated by fuel
10. Spark Plug Wire Damage
11. Ignition Coil Damage
12. Crankshaft Position Sensor
Refer to
13. Too Much Oil In Combustion Chamber or
Valve Seals Leakage
Refer to
in
14. Cylinder compression pressure is incorrect
15. Valve Catching or Leak, Broken Valve
Spring, Valve Timing Is Incorrect
16. Too Much Carbon Residue In Combustion
Chamber
17. Intelligent Variable Valve Timing System
18. Exhaust Blocked: Three-Way Catalytic
Converter Blocked, Muffler Internal Damage
Refer to
Engine Does Not Turn
1. Battery
Refer to
in
2-612
Control System JL4G15-D
Engine
Symptoms
Suspected Faulty Items
Relevant Sections
Fault Definition: When the ignition
switch is at "ST" position, the engine
crankshaft does not rotate.
2. Starter
3. Start Relay
4. Ignition Switch
5. BCM
6. Engine Anti-theft Locking System
Refer to
in
.
Engine Does Not Start
Fault Definition: When the ignition
switch is at "ST" position, the engine
crankshaft rotates, but the vehicle does
not start.
1. ECM Power Supply Circuit
Refer to
2. Crankshaft Position Sensor
Refer to
3. Camshaft Position Sensor
Refer to
4. Ignition System
5. Fuel Pump Control Circuit
Refer to
6. Fuel Injectors Working Circuit
7. ECM
Refer to
Engine
Control System JL4G15-D
2-613
2.12.7.5 ECM Terminal List
EO01
FE02-5217b
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
Note:
1. UB is the battery voltage.
2. If there is no instruction, GND is 0 V or close to 0 V.
Terminal
ID
Name
Wiring
Terminal Instructions
Status
Specified Conditions
1
COILA
0.85 W
Ignition Coil A
Engine Running
GND-UB PWM Wave
2
O2ALO
0.5 L/R
Pre-Catalytic Oxygen
Sensor A-Side
Ignition Switch "ON"
0-5 V
3
V5RTN1
0.5 G/W
5V Power Supply Ground
-
GND
4
V5REF1
0.5 G
5V Power Supply
Ignition Switch "ON"
5 V
5
-
-
-
-
-
6
V5REF2
0.5 L/B
5V Power Supply
Ignition Switch "ON"
5 V
7-8
--
--
--
--
--
9
MAT
0.5 G/Y
Intake Air Temperature
Ignition Switch "ON"
0-5 V
2-614
Control System JL4G15-D
Engine
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