Geely EC718, EC718RV, EC715, EC715RV. Manual part — 140
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 140
(a)
Turn the ignition switch to "OFF" position.
(b)
Connect scan tool to the datalink connector.
(c)
Turn off the A/C switch.
(d)
Turn the ignition switch to "ON" position.
(e)
Select in sequence: Engine / Data List / Engine Coolant
Temperature.
(f)
Observe the temperature measured by the engine coolant
temperature sensor. When the engine is completely cooled
down, this temperature should be slightly higher than the
ambient temperature.
Confirmation shows the temperature is normal.
No
Temperature sensor or circuit is faulty. Refer
to
Yes
Step 3
Remove and check the cooling fan high speed relay. Does the cooling fan still run?
No
Yes
Step 4
Check and repair the circuit between high-speed cooling fan relay and cooling fan wiring harness connector
SCA16.
1413 12 1110
5
1
2
3
4
6
7
8
9
J
L
K
I
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
1
2
5 3
86
87
30
1
1
2
5
3
2
5
3
85
EF01
EF21
EF18
EF25
EF20
EF29
EF06
EF02
EF30
EF17
EF19
EF23
EF22
EF26
EF24
EF08
EF27
EF28
EF05
EF07
EF16
EF04
EF03
EF15
EF12
EF10
EF1
1
EF09
EF13
EF14
EF32
EF31
A
86
87
30
85
1
2
3
Cooling Fan Harness Connector CA16
FE02-7804b
(a)
Turn the ignition switch to "OFF" position.
(b)
Remove High-Speed cooling fan relay.
(c)
Disconnect cooling fan wiring harness connector CA16.
(d)
Check and repair the circuit between relay and connector
short to power supply.
Step 5
check cooling fan high speed relay.
Engine
Cooling System JL4G18-D
2-475
(a)
Measure resistance between relay terminal No.87 and
terminal No.30.
Standard Resistance: 10 kΩ or higher
Confirm whether the measured resistance is normal.
No
Replace the relay.
Yes
Step 6
Check high-speed relay A control circuit.
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
1413 12 1110
5
1
2
3
4
6
7
8
9
J
L
K
I
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
1
2
5 3
86
87
30
1
1
2
5
3
2
5
3
85
EF01
EF21
EF18
EF25
EF20
EF29
EF06
EF02
EF30
EF17
EF19
EF23
EF22
EF26
EF24
EF08
EF27
EF28
EF05
EF07
EF16
EF04
EF03
EF15
EF12
EF10
EF1
1
EF09
EF13
EF14
EF32
EF31
A
86
87
30
85
FE02-7806b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect ECM harness connector EN01.
(c)
Remove high-speed cooling fan relay A.
(d)
Test continuity between high-speed cooling fan relay A
terminal No.86 and ECM harness connector EN01 terminal
No.52.
(e)
Measure resistance between high-speed cooling fan relay A
terminal No.86 and a reliable ground. Check whether the
circuit is short to ground.
Standard Value:
Test Items
Specified Value
Relay A (86)-EN01 (52)
Less than 1 Ω
Relay A (86) - Reliable Ground
10 kΩ or higher
Is the measured values specified value?
No
Circuit between relay A terminal No.86 and
EN01 terminal No.52 is short to ground.
Yes
Step 7
Check ECM circuit.
(a)
Check whether ECM power supply circuit is normal.
(b)
Check whether ECM ground circuit is normal.
No
Repair the faulty part.
Yes
Step 8
Replace ECM.
Next
Step 9
Diagnostic completed.
2-476
Cooling System JL4G18-D
Engine
2.8.7.7 Thermostat Diagnostic
Step 1
Remove the thermostat. Refer to
.
Next
Step 2
Soak the thermostat in water and heat the water.
FE02-7814b
(a)
Check the thermostat switch on temperature.
Standard Value: 82°C (179.6 ºF)
Is the thermostat switch on temperature normal?
No
Replace the thermostat. Refer to
Yes
Step 3
Check the thermostat valve lift travel distance.
A
FE02-7813b
Standard Valve Lift: 10 mm (0.39 in) or higher at 95°C(203 ºF)
Confirm whether the valve lift is normal.
No
Replace the thermostat. Refer to
Yes
Step 4
Check whether the thermostat is completely switched off at low temperature.
When the thermostat temperature islower than 77°C (171 ºF),
check whether the thermostat is completely switched of.
No
Replace the thermostat. Refer to
Engine
Cooling System JL4G18-D
2-477
Yes
Step 5
Thermostat normal.
2.8.7.8 Engine Overheating
Warning!
Refer to "Cooling System Service Warning" in "Warnings and Notices".
Step 1
Is there engine coolant loss?
Yes
Add engine coolant.
No
Step 2
Is the engine coolant concentration inadequate?
Yes
Use "Geely Genuine ultra-long-acting engine
coolant" or the same level of high-quality
ethylene glycol base engine coolant, model or
standard number: comply with SH0521.
No
Step 3
Check whether there is dust, leaves or insects and other debris at the radiator front?
Yes
Clean up the front of the radiator.
No
Step 4
Check coolant pipes, pumps, engine coolant inlet components and radiator. Check for blockage and cylinder
head gasket leaking.
Yes
Replace any damaged parts.
No
Step 5
Connect scan tool, with the data flow showing the engine coolant temperature reaches 95°C (203 ºF ). Check
the radiator inlet and outlet hoses coolant temperature. There should be no temperature difference. Is the
temperature difference big?
Yes
1. Check whether the thermostat is working
properly. 2. Check whether there is radiator
blockage.
No
Step 6
Use ignition timing gun to check whether the ignition is too late.
Yes
Check engine ignition timing. Carry out ECM
diagnostic.
2-478
Cooling System JL4G18-D
Engine
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