9.2.3 System operating principle 

9.2.3.1 System operating Principle 

Airbag warning light 

Airbag warning lamp is located inside the combination instrument assembly, used to notify the driver about the 
airbag system failures and examine whether the airbag control module is communicating with the instrument 
panel. When the ignition key is turned to ON position, airbag control module will carry out the system 
self-checking. During this process, airbag warning lamp lightens for 6 seconds and goes out for 2 seconds. If any 
fault occurs to the airbag system, the airbag warning lamp will lighten all the time. If no fault occurs to the airbag 
system, the airbag warning lamp will lighten for 6 seconds and continue going out after going out for 2 seconds. If 
any fault occurs to the airbag system, please go to the service station authorized by Geely for maintenance. Before 
the repair is completed, the airbag warning lamp will not be off. 

Airbag Control Module (SRS) 

Note: Airbag control module (SRS) has a back up power supply, which can deploy the airbag, even if the battery 
voltage is lost during a collision. Disconnect the battery negative cable for at least 90s to empty the stored power 
supply, before carrying out the airbag system maintenance. 

Airbag control module is a microprocessor which is the airbag system control center. If any collision occurs to the 
vehicle, the airbag control module will decide whether the airbag shall be ignited to explode by the signals coming 
from the sensors. When the airbags are deployed, the airbag control module will record the status of airbag 
systems, and light the airbag indicator on the combination instrument. After the vehicle starts, airbag control 
module will continue to monitor the airbag system electrical components and circuits. If any malfunction is 
detected by the airbag control module, it will store a diagnostic trouble code, and light the airbag warning lamp to 
inform the driver that a malfunction exists. 

Front Collision Sensor 

Front collision sensor is used to collect the magnitude of the positive acceleration during the collision, and 
transmit the acceleration signal to airbag control module to decide whether the airbag should be ignited to 
explode. 

Side Collision Sensor 

Side collision sensor is used to collect the magnitude of the side acceleration during the collision, and transmit the 
acceleration signal to airbag control module to decide whether the airbag should be ignited to explode. 

Passenger Recognition Sensor 

Passenger recognition sensor is located inside the passenger seat cushion assembly and used to sense whether the 
passenger seat is occupied by a passenger. It is a variable resistance-type pressure sensor and senses the pressure 
through the resistance changes. When the passenger seat is occupied by a passenger, the seatbelt warning lamp 
will be lit to inform the driver to remind the passenger to fasten the seatbelt. 

Driver Side Airbag, Passenger Side Airbag 

Driver side airbag and passenger side airbag module includes a shell, inflatable airbag, a detonating device and 
gas generating agent. When the front collision impact force is large enough, the airbag control module will send a 
command in the form of a strong current not less than 1.2 A to the front circuit to deploy the airbag. When the 
current flows through the igniter and activates the gas generating agent to rapidly produce large amounts of gas. 
The gas inflates the airbag. The airbag, once filled with the gas, will deflate through holes in the airbag. Airbag 
control module harness connector terminal (driver airbag, passenger and airbag deployment circuits) has a short 
circuit film. When the connector is disconnected, the airbag deployment short circuit will prevent the airbag 
accidental deployment during the repair. 

Driver Seatbelt Preloader, Passenger Seatbelt Preloader 

Driver Seat Belt preloader, passenger seat belt preloader r module includes a shell, a detonating device and gas 
generating agent. The igniter is part of the seat belt preloader deployment return circuit. When the front or side 
collision impact force of the vehicle is large enough, the airbag control module will send an ignition command 
(electric current signal), the electric current flow through the igniter to detonate the gas generating agent and 
rapidly produce a large amount of gas. The gas will make the preloader take in the safety belt rapidly. Airbag 
control module harness connector terminal (each seat belt preloader r return circuit) has a short film. This short 
film will short out the preloader return circuit to prevent the seat belt preloader accidental detonation during the 

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repair. 

Driver Side Airbag, Passenger Side Airbag 

Driver side airbag and passenger side airbag are located in the driver seat back and passenger seat backrest 
respectively. Side airbag modules include airbags, detonating devices and gas generating agent. The igniter is part 
of the airbag modules deployment circuit. When a side impact force is large enough, side collision sensors will 
detect the collision and send a signal to the airbag control module. Airbag control module will compare the signal 
from the side collision sensor with the value in the memory. When the signal exceeds the stored value, the airbag 
control module commands the side airbag to deploy. When the passenger side collision happens, it requires the 
driver side airbag, driver curtain airbag are not deployed, while the passenger side airbag, passenger curtain airbag 
deploy. Airbag control module continuously monitors whether the airbag deployment circuit is faulty. In the event 
of a fault, it will light the airbag indicator. Airbag control module harness connector (airbag deployment circuit) 
has a short film. When the connector is disconnected, the airbag deployment short circuit will prevent the airbag 
accidental deployment during the repair. 

Knee Airbag 

The knee airbag is an important part of the front collision passenger safety system. Its protection includes the 
potential collision area on the lower part of the instrument panel. The advantage of active knee protection is to 
improve the system constraint protection of the passenger thighbone and basin and help to balance the loads of the 
chest and legs. The knee airbag can help to improve the integral safety of passengers. During the accident, it will 
deploy together with the front airbag. The two airbags will restrain the passenger in a proper position and let the 
seat safety belt system work more effectively. 

Driver Side Curtain Airbag, Passenger Side Curtain Airbag 

Driver side curtain airbag, passenger side curtain airbag are located on the left and right roof rails from the 
A-pillar extension to the C- pillar. Curtain airbag module includes airbags, a detonating device and gas generating 
agent. Igniter is part of the curtain airbag deployment circuit. When a side impact force is large enough, side 
collision sensors will detect the collision and send a signal to the airbag control module. Airbag control module 
will compare the signal from the side collision sensor with the value in the memory. When the signal exceeds the 
stored value, the airbag control module commands the curtain airbag to deploy. When the passenger side collision 
happens, it requires the driver side airbag, driver curtain airbag are not deployed, while the passenger side airbag, 
passenger curtain airbag deploy. Airbag control module continuously monitors whether the airbag deployment 
circuit is faulty. In the event of a fault, it will light the airbag indicator. Airbag control module harness connector 
(curtain airbag deployment circuit) has a short film. When the connector is disconnected, the airbag deployment 
short circuit will prevent the airbag accidental deployment during the repair. 

Clock Spring 

Airbag clock spring is located in the steering column below the steering wheel. When the steering wheel rotates, 
the clock spring maintains continuous electrical contact between the airbag deployment circuit and the driver front 
airbag. The steering wheel clock spring connector is equipped with a short film which can short the driver front 
airbag deployment circuit, in order to prevent the airbag accidental deployment during the repair. 

Airbag System Harness 

The airbag system harness connects the sensor, airbag control module, airbag module and safety belt preloader 
together by a water-proof connector. When repairing the airbag system harness, please abide by relevant testing 
and circuit repair procedures in this manual. 

Steering Wheel and Steering Column 

The steering wheel and steering column have adopted energy- absorbing designs to absorb energy when the driver 
and the steering wheel come into contact. When a vehicle front collision happens, the driver may be contacted 
directly with the steering wheel, or the impact will be loaded into the steering wheel and steering column. The 
steering column will shrink down to absorb some of the collision energy, thereby help to reduce the driver 
personal injury. After a collision, you must inspect the steering wheel and steering column damage. 

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9.2.4 Component Position 

9.2.4.1 Component Position 

7

6

4

3

5

2

1

NL09-1001e

 

1.   Passenger Airbag 

2.    Passenger Side Curtain Airbag 

3.    Driver Side Curtain Airbag 

4.    Driver Side Airbag (Located inside the seat back) 

5.    Passenger Side Airbag (Located inside the seat 

back) 

6.    Driver Airbag and Clock Spring 

7.   Driver Knee Airbag 

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1

5

9

8

4

7

2

3

6

NL09-1002e

 

1.    Front Collision Sensor (Right) 

2.    Airbag Control Module (SRS) 

3.  Front Collision Sensor (Left) 

4.   Passenger Collision Sensor 

5.    Passenger Seat Belt Preloader 

6.    Driver Seat Belt Preloader 

7.    Driver Side Collision Sensor 

8.    R.L. Collision Sensor 

9.    Right rear Collision Sensor 

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