Geely EC718 2009 Workshop Manual page 373

Engine
No
Step 8 Repair the circuit fault between electronic anti-theft wiring harness connector coil and engine anti-theft
system control module wiring harness connector.
No
Step 9 Check the serial communication circuit between the engine anti-theft system control module and engine
control module.
Engine Anti-Theft Control Unit 1 Harness
Connector IP25
1 3
2 4
ECM Harness Connector EN01
64 63 62
61 60 59 58 57
50 49 48 47 46 45 44 43
36 35 34 33 32 31 30 29
22 21 20 19 18 17 16 15
No
Repair the serial communication circuit between engine control module anti-theft system and engine control
Step 10
module.
5 7
6 8
56 55 54 53 52 51
8 7
6
5
42 41 40 39 38 37
28 27 26 25 24 23
3
4
2 1
9
14 13 12 11 10
FE02-6608b
Engine Anti-theft System JL4G18-D
Go to step 9
Yes
(a) Repair the open circuit between the anti-theft coil harness
connector IP21 terminal No.1 and engine anti-theft system
control module wiring harness connector IP26 terminal No.1.
(b) Repair the open circuit between the anti-theft coil harness
connector IP21 terminal No.4 and engine anti-theft system
control module wiring harness connector IP26 terminal No.2.
Can the vehicle start as per normal?
System normal
Yes
(a) Check the serial communication circuit resistance between
engine anti-theft system control module connector IP25
terminal No.5 and the engine control module connector EN01
terminal No.23 to determine the circuit continuity.
Standard Resistance Value: Less than 1 Ω
(b) Check the serial communication circuit resistance between
engine anti-theft system control module connector IP25
terminal No.8 and the engine control module connector EN01
terminal No.15 to determine the circuit continuity.
Standard Resistance Value: Less than 1 Ω
Is the resistance standard?
Intermittent Fault. Refer to
Yes
Fault Check
(a) Repair the serial communication open circuit between engine
anti-theft system control module connector IP25 terminal No.
EC718/EC718RV EC715/EC715RV 10/2009
2-291
2.2.7.3 Intermittent