Geely EC718, EC718RV, EC715, EC715RV. Manual part — 455
Geely EC718, EC718RV, EC715, EC715RV. Manual part - 455
11.9.7 Diagnostic Information and Procedures
11.9.7.1 Diagnosis Description
Refer to
get familiar with the system functions and operation before start system diagnostics, so
that it will help to determine the correct diagnostic steps, more importantly, it will also help to determine whether the customer
described situation is normal.
11.9.7.2 Visual Inspection
–
Check installed after market equipment that may affect Central Locking operation.
–
Check the easy to access system components to identify whether there is a significant damage or a potential malfunction.
–
If all door locks are inoperative, check the power supply circuit and the ground circuit for poor connection or open circuit before
replacing bulbs.
11.9.7.3 Symptom List
Symptoms
Suspected Faulty Parts
Repair Procedure
Mechanical key can not lock / unlock the
door
1. Central
Locking
Power
Supply
Malfunction
2. Left Front Door Unlock / Lock Switch
Poor Connection
3. Wiring Harness Connector Poor
Connection
4. Ground Poor Connection
5. Harness Malfunction
6. Central Locking Motor Malfunction
7. BCM Malfunction
1. Check the power supply circuit.
2. Check
wiring
harnesses
and
connectors.
3. Check ground malfunction
4. Replace the door lock motor.
5. Check the BCM, if necessary, replace
the BCM.
Central locking switch can not lock / unlock
doors
1. Central
Locking
Power
Supply
Malfunction
2. Left Front Door Combination Switch
Central Locking Switch Malfunction
3. Wiring Harness Connector Poor
Connection
4. Ground Poor Connection
5. Harness Malfunction
6. Central Locking Motor Malfunction
7. BCM Malfunction
1. Check the power supply circuit.
2. Check
wiring
harnesses
and
connectors.
3. Check ground malfunction
4. Check the left front door window
switch.
5. Replace the lock motor.
6. Check the BCM, if necessary, replace
the BCM.
Body Electric
Central Locking
11-333
Symptoms
Suspected Faulty Parts
Repair Procedure
Only the left front door can not be locked /
unlocked
1. Central
Locking
Power
Supply
Malfunction
2. Left Front Door Lock Harness
Connector Poor Connection
3. Left Front Door Lock Ground Poor
Connection
4. Harness Malfunction
5. Left The Front Door Central Locking
Motor Poor Connection
6. BCM Poor Connection
1. Check the power supply circuit.
2. Check
wiring
harnesses
and
connectors.
3. Check ground malfunction
4. Replace the lock motor.
5. Check the BCM, if necessary, replace
the BCM.
Remote control does not lock / unlock
doors
1. Electromagnetic Interference
2. Remote Malfunction
3. Central
Locking
Power
Supply
Malfunction
4. Wiring Harness Connector Poor
Connection
5. Ground Poor Connection
6. Harness Malfunction
7. Central Locking Motor Malfunction
8. BCM Malfunction
1. Move
to
a
non-interference
environment.
2. Check the remote control battery, if
necessary, replace the remote control.
3. Check the power supply circuit.
4. Check the wiring harnesses and
connectors.
5. Check the ground.
6. Replace the door lock motor.
7. Check the BCM, if necessary, replace
the BCM.
Auto locking is not activated in central
locking anti-theft mode.
1. Insufficient Power Supply Voltage
2. Wiring Harness Connectors Poor
Connection
3. Ground Poor Connection
4. Harness Malfunction
5. Central Locking Motor Contact Switch
Malfunction
6. BCM Malfunction
1. Check the power supply circuit.
2. Check the wiring harnesses and
connectors.
3. Check the ground.
4. Replace the lock motor.
5. Check the BCM, if necessary, replace
the BCM.
11-334
Central Locking
Body Electric
Symptoms
Suspected Faulty Parts
Repair Procedure
Door lock operated during driving
1. Mechanical
Lock
Mechanism
Malfunction
2. Wiring Harness Connectors Poor
Connection
3. Ground Poor Connection
4. Harness Malfunction
5. Central Locking Motor Contact Switch
Malfunction
6. BCM Malfunction
1. Adjust mechanical lock mechanism , if
necessary, replace the lock body.
2. Check the wiring harnesses and
connectors.
3. Check the ground.
4. Replace the lock motor.
5. Check the BCM, if necessary, replace
the BCM.
11.9.7.4 Mechanical Key / Central Locking Switch Can Not Lock All Doors
Schematic:
Body Control Module
Left Front Door Lock Assembly
Right Front Door Lock
Assembly
Left Rear Door Lock
Assembly
Right Rear Door Lock
Assembly
Left
Front
Door
switch
FE11-5801b
Diagnostic Steps:
Note
When there is not a remote control, use the scan tool special setting function to drive door locks. Select as the following
sequence: body control module / BCM special setting function / locking, unlocking dual-locking (all doors) / locking all
the doors.
Body Electric
Central Locking
11-335
Step 1
Check the remote locking.
Is the remote locking working?
Yes
No
Step 2
Check remote anti-theft system for possible malfunction.
(a)
Check and repair the remote anti-theft system for possible
malfunction
Is the remote locking working?
Yes
System normal
No
Step 3
Check the mechanical key or the control button locking.
1
2
3
4
5
6
7
8
9 10
20
30
40
19
29
39
18
28
38
17
27
37
16
26
36
15
25
35
14
24
34
13
23
33
12
22
32
11
21
31
Body Control Module 1 Harness Connector IP29
FE11-5802b
(a)
Use the mechanical key or the left front combination switch
to repeatedly lock and unlock, at the same time measure the
BCM harness connector IP29 terminal No.37 voltage with a
multimeter.
Is the voltage between 0 V and 10 V?
Yes
No
Step 4
Check the left front door lock assembly.
1
6
7
8
9
10
2
3
4
5
Left Front Door Lock Motor Harness
Connector DR06
FE11-5803b
(a)
Remove the left front door lock assembly. Refer to
Left Front Door Lock Assembly Replacement
.
(b)
Simulate the mechanical key locking action, measure
resistance between the left front door lock assembly DR06
terminals No.4 and 8 with a multimeter.
Standard Resistance: Less than 1 Ω
Is the resistance specified value?
Yes
11-336
Central Locking
Body Electric
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