Geely EC718, EC718RV, EC715, EC715RV. Manual part — 207
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 207
3. Schematic:
12
A
B
EO01
57
OCP
EO35
62
MPR
Main Relay
From Battery
Engine
Control
Module
Evaporative Canister Solenoid
FE02-5282b
4. Diagnostic Steps:
Note
Before carrying out this diagnosis step, observe the data list on scan tool and analyze the accuracy of the data, as
these will help with quick diagnosis.
Step 1
Use scan tool for canister solenoid valve active testing.
(a)
Connect scan tool to the "Data Link Connector".
(b)
Disconnect the Canister solenoid valve to the Canister
vacuum tubes.
(c)
Start engine and turn on the scan tool.
(d)
Select the following menu: "Engine"/"Action Test"/"Canister
Solenoid Valve"
(e)
Use scan tool to enable the use of "Canister Control Valve".
Place a finger over the vacuum port solenoid valve and check
whether there is suction.
Yes
Intermittent Fault. Refer to
No
Step 2
Measure canister solenoid valve resistance.
Engine
Control System JL4G15-D
2-743
A
B
Evaporative Canister Solenoid
FE02-5283b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect Canister solenoid valve harness connector
EO24.
(c)
Measure resistance between the Canister solenoid valve two
terminals.
Standard Resistance: 19-22 Ω at 20°C(68 ºF)
(d)
Connect canister solenoid valve harness connector EN24.
Is the value specified value?
No
Replace the canister solenoid valve. Refer to
.
Yes
Step 3
Measure canister solenoid valve working power supply.
FE02-5284b
A
B
Evaporative Canister Solenoid Harness
Connector EO24
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect Canister solenoid valve harness connector
EN24.
(c)
Turn the ignition switch to "ON" position.
(d)
Measure voltage between Canister solenoid valve wiring
harness connector EN24 terminal A and a reliable ground.
Standard Voltage: 11-14 V
(e)
Connect canister solenoid valve harness connector EN24.
Is the value specified value?
No
Check whether there is an open circuit or a
circuit short to ground between solenoid valve
wiring harness connector EN24 terminal A
and main relay terminal No.3. Repair the
faulty part. Go to step 7
Yes
Step 4
Check canister solenoid valve control circuit.
2-744
Control System JL4G15-D
Engine
1
17
33
53
54
55
56
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
57
A
B
Evaporative Canister Solenoid Harness
Connector EO24
ECM Harness Connector EO01
FE02-5285b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect Canister solenoid valve harness connector
EO24.
(c)
Disconnect ECM harness connector EO01.
(d)
Measure resistance between Canister solenoid valve wiring
harness connector EN24 terminal B and ECM harness
connector EN01 terminal No.57. Check whether the circuit is
open.
(e)
Measure resistance between Canister solenoid valve wiring
harness connector EN24 terminal B and a reliable ground.
Check whether the circuit is short to ground.
(f)
Measure voltage between Canister solenoid valve wiring
harness connector EN24 terminal B and a reliable ground.
Check whether the circuit is short to power supply.
Test Items
Standard
Value
Resistance Between EN24 (B) and EN01 (57)
Less than 1 Ω
Resistance Between EN24 (B) and A Reliable
Ground
10 kΩ or
higher
Voltage Between EN24 (B) and A Reliable
Ground
0 V
Are the values specified values?
No
Repair or replace the wiring harness
connectors. Go to step 7
Yes
Step 5
Check ECM power supply 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 6
Replace ECM.
(a)
Carry out crankshaft self learn after ECM replacement. Refer
to
Crankshaft Position Sensor (CKP) Learn
Next
Step 7
Use scan tool to confirm whether the DTC code is stored again.
(a)
Connect scan tool to the datalink connector.
(b)
Turn the ignition switch to "ON" position.
(c)
Clear DTC code.
(d)
Start and run the engine at idle speed to warm up the engine
for at least 5 min.
Engine
Control System JL4G15-D
2-745
(e)
Read control system DTC code again to confirm that the
system has no DTC code.
No
Intermittent Fault. Refer to
Yes
Step 8
Diagnostic completed.
5. Repair Instructions:
Replace EVAP solenoid valve. Refer to
Canister Solenoid Valve Replacement
2.12.7.40 DTC P0480 P0481
1. DTC Descriptor:
DTC
P0480
Low-Speed Fan Malfunction
DTC
P0481
High-Speed Fan Malfunction
High or low speed cooling fan relay coil power is provided by ECM controlled main relay. ECM controls the relay via ECM harness
connector EO36 terminal No.66 and 67. ECM has an internal driver circuit that controls the relay coil ground. Drive circuit is equipped
with a feedback circuit to ECM. ECM monitors the feedback voltage control circuit to determine whether the control circuit is open,
short to ground or short to ground.
2. Conditions For Setting DTC and The Fault Location:
DTC Code
DTC Detection Strategy
Conditions For Setting The DTC
(Control Strategy)
Fault Locations
P0480
Hardware Circuit Checks
Under idle operating condition, when
the fan is working. The fan control is
short to power supply, DTC code set.
1. Relay Circuit
2. Relay
3. ECM
4. Cooling Fan
P0481
Hardware Circuit Checks
Under idle operating condition, when
the fan is working. The fan control is
short to power supply, DTC code set.
3. Schematic:
4. Diagnostic Steps:
5. Repair Instructions:
Replace the cooling fan. Refer to
2.12.7.41 DTC P0502
1. DTC Descriptor:
DTC
P0502
Vehicle Speed Sensor No Signal
2-746
Control System JL4G15-D
Engine
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