Geely EC718, EC718RV, EC715, EC715RV. Manual part — 139
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 139
1413 12 1110
5
1
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J
L
K
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G
D
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B
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A
86
86
30
87
85
86
86
87
87
87
30
30
30
85
85
85
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3
5
5
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5 3
1
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5 3
86
87
30
1
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5
3
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5
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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
B
86
87
30
85
FE02-7810b
(a)
Turn the ignition switch to "OFF" position.
(b)
Remove the low-speed cooling fan relay B.
(c)
Turn the ignition switch to "ON" position.
(d)
Measure voltage between relay B terminal No.85 and a
reliable ground.
Standard Voltage: 11-14 V
Is the voltage specified value?
No
Circuit between relay terminal No.85 and the
main relay terminal No.3 is open.
Yes
Step 9
Check low-speed relay B control circuit.
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31
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36
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ECM Harness Connector EN01
1413 12 1110
5
1
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3
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8
9
J
L
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D
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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
B
86
87
30
85
FE02-7811b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect ECM harness connector EN01.
(c)
Remove the low-speed cooling fan relay B.
(d)
Test the continuity between the cooling fan low speed relay
B terminal No.86 and EN01 terminal No.62.
(e)
Measure voltage between high-speed cooling fan relay B
terminal No.86 and a reliable ground. Check whether there
is a circuit short to power supply.
Standard Value:
Test Items
Specified Value
Relay B (86)-EN01 (62)
Less than 1 Ω
Relay B (86) - Reliable Ground
0 V
Is the measured value specified values?
No
Circuit between relay B terminal No.86 and
EN01 terminal No.62 is open.
Yes
Step 10
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.
Engine
Cooling System JL4G18-D
2-471
Yes
Step 11
Replace ECM.
Next
Step 12
Diagnostic completed.
2.8.7.5 Cooling Fan Always Runs At Low Speed
Note
When the cooling fan always runs at low speed, it is recommended to carry out diagnostic when the engine is completely
cooled down.
Step 1
Verify the fault.
Next
Step 2
Check the engine coolant temperature sensor signal.
(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.
Confirm whether the measured temperature is normal.
No
Temperature sensor or circuit is faulty. Refer
to the
Yes
Step 3
Remove and check the cooling fan low speed relay. Does the cooling fan still run?
No
Yes
Step 4
Check and repair the circuit between low-speed cooling fan relay and cooling fan wiring harness connector
CA16.
2-472
Cooling System JL4G18-D
Engine
1413 12 1110
5
1
2
3
4
6
7
8
9
J
L
K
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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
1
2
3
B
86
87
30
85
Cooling Fan Harness Connector CA16
FE02-7809b
(a)
Turn the ignition switch to "OFF" position.
(b)
Remove of low-speed cooling fan relay.
(c)
Disconnect cooling fan wiring harness connector CA16.
(d)
Check and repair circuit between relay and connector short
to power supply.
Step 5
Check cooling fan low speed relay.
(a)
Measure resistance between relay terminal No.87 and
terminal No.30.
Standard Resistance: 10 kΩ or higher
Is the resistance specified value?
No
Replace the relay.
Yes
Step 6
Check low-speed relay B control circuit.
Engine
Cooling System JL4G18-D
2-473
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9
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31
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14
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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
B
86
87
30
85
FE02-7811b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect ECM harness connector EN01.
(c)
Remove low-speed cooling fan relay B.
(d)
Test the continuity between cooling fan low speed relay B
terminal No.86 and ECM harness connector EN01 terminal
No.62.
(e)
Measure resistance between cooling fan low speed relay B
terminal No.86 and a reliable ground. check whether there is
a short to ground circuit.
Standard Value:
Test Items
Specified Value
Relay B (86)-EN01 (62)
Less than 1 Ω
Relay B (86) - Reliable Ground
10 kΩ or higher
Is the measured value specified Value?
No
Circuit between relay B terminal No.86 and
EN01 terminal No.62 is faulty.
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.
2.8.7.6 Cooling Fan Always Runs At High Speed
Note
When the cooling fan always runs at high speed, it is recommended to carry out diagnostic when the engine is
completely cooled down.
Step 1
Verify the fault.
Next
Step 2
Check the engine coolant temperature sensor signal.
2-474
Cooling System JL4G18-D
Engine
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