Geely Emgrand X7. Manual part — 452

9 Safety Protection Device . . . . . . . . .. 1808

9.1 Warning and precaution . . . . . . . .. 1808

9.1.1 Warning and precaution . . . . . . . ... 1808

9.2 Airbag System . . . . . . . . . . . ... 1809

9.2.1 Specifications . . . . . . . . . . . ... 1809

9.2.2 Description and operation . . . . . . . 1810

9.2.3 System operating principle . . . . . . .. 1811

9.2.4 Component position . . . . . . . . . . 1813

9.2.5 Electrical schematic diagram. . . . . . .. 1815

9.2.6 Diagnostic information and procedures. . .. 1816

9.2.7 Removal and installation . . . . . . .

1839

9.3 Preload type safety belt system . . . . .. 1854

9.3.1 Specifications . . . . . . . . . . . ... 1854

9.3.2 Description and Operation . . . . . . . 1855

9.3.3 System operating principle . . . . . . ... 1856

9.3.4 Component position . . . . . . . . . . 1857

9.3.5 Electrical schematic diagram. . . . . . ... 1858

9.3.6 Diagnostic information and procedures.. . .. 1859

9.3.7 Removal and installation . . . . . . .

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9 Safety Protection Device

9.1 Warning and precaution

9.1.1 Warning and precaution

Airbag System Warning

Warning: This vehicle is equipped with airbag system. Failure to follow the correct procedures will lead to the
following conditions:

-

Airbag is opened accidentally

-

The system does not work when needing the airbag to protect

Warning: Strictly abide by the following criteria in order to avoid the above situation:

-

Refer to view of the airbag system components to determine whether you are doing the maintenance on the
airbag system components, surrounding components or the circuits.

-

If you are doing the repair on the airbag system components, surrounding components or the circuits, remove
the airbag system. Refer to "Warning on Battery Negative Cable Disconnection" in "Warnings and
Precautions".

Warning on High Temperature of Deployed Airbag Module

Warning: After being deployed, the metal surfaces of the airbag system component may be very hot. To help avoid
a fire or personal injury:

-

Allow sufficient time for cooling before touching any metal surface of the airbag system component.

-

Do not place the deployed airbag system component near any flammable objects.

Warning for airbag system clock spring

Warning: Improper installation of the clock spring assembly may damage the spiral coil inside the clock spring.
This may result in a malfunction of the coil which may make the airbag module do not work normally and cause
personal injury.

Safety System Module Disposal Warning

Warning: In order to prevent accidental deployment of the safety system and avoid the risk of personal injury, do
not dispose of an unexpanded airbag module as normal shop waste. Unexpanded airbag modules contain
substances that could cause severe illness or personal injury if their sealed containers are damaged during disposal.
Use the following deployment procedures to safely dispose of an unexpanded airbag module.

Warning for the Handling and Storage of Airbag System Inflating Module

Warning: When carrying an unexpanded airbag module:

-

not carry the airbag module by the wires or connector.

-

Make sure the air bag opening do not point towards you and others.

Warning: when storing unexpanded airbag module, ensure the opening does not face the surface on which it will
be placed. Do not point the airbag opening to the ground. Do not place any items onto the airbag module. Provide
free space for the airbag to expand in case of an accidental deployment. Do not have the unexpanded airbag
module soaked in water or come into contact with other liquids. Do not place the unexpanded airbag module near
the fire source or a high-temperature area. Prevent personal injury caused by accidental airbag deployment.

Warning on Handling Airbag System Collision Sensor

Warning: Do not hit or shake airbag system collision sensors. Before supplying power to the collision sensors,
ensure the collision sensors are firmly tightened. Failure to follow the correct procedures may cause airbag
accidental deployment or inoperative, resulting in personal injury.

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9.2 Airbag System

9.2.1 Specifications

9.2.1.1 Fastener specifications

Specification

Fastener Name

Model

Metric (N.m)

English system (lb-ft)

Fasten the Beams of Passenger Airbag

and Instruments

M8×16 22-26

16-19

Fasten Passenger Airbag and Instrument

Panel

ST4 . 8×16

4-6

3-4

Fasten Driver Knee Airbag

M6×16

7-9

5-7

Fasten Driver Knee Airbag

ST4 . 8×16

4-6

3-4

Fasten Side Guard Curtain Airbag

M6×16

7-9

5-7

Fix side collision sensor

M6×25

8-10

6-8

Fix Front Collision Sensor

M6×25

8-10

6-8

Fasten Airbag Control Module

M6×20

4-6

3-4

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9.2.2 Description and operation

9.2.2.1 Description and operation

Important precaution: Airbag system cannot be a substitute for safety belt function. Serious injury may occur
during airbag explosion. Geely Automobile reminds you to fasten the safety belt when driving or sitting in the
car. Only if you fasten the safety belt, the airbag system can offer better auxiliary protection to passengers.

Airbag System Description

Airbag system consists of the following components:

-

Airbag Warning Lamp

-

Combination Instrument Assembly

-

Airbag Control Module (SRS)

-

Front Collision Sensor (Left / Right)

-

Side Collision Sensor

-

Rear collision sensor (left/right)

-

Passenger Inspection Sensor

- Driver side airbag

-

Passenger Side Airbag

-

Driver Side Seatbelt Preloader

-

Passenger Side Seatbelt Preloader

-

Driver Curtain Airbag

-

Passenger Curtain Airbag

-

Front row left/right airbag

-

Driver Knee Airbag

-

Clock Spring

-

Airbag System Harness

-

Steering Wheel and Steering Column

Beside Seatbelts, airbag system provides additional protection to passengers and it is a passive safety system.
Airbag system includes multiple inflatable protection modules, distributed in different locations of vehicles,
including steering wheel, instrument units, front seat back, and roof rails. In addition to inflatable protection
module, the vehicle can be equipped with seat belt preloader. When a collision occurs, it will fasten seat belt,
inflate the module, and increase the distance between passenger and airbag at the same time. Each inflatable
module has a detonating circuit controlled by the airbag control module. When the airbag control module detects
that the collision impact is large enough, it deploys the airbag. Airbag control module continuously monitors the
airbag system electrical components. When a circuit failure is detected, the airbag control module will set a DTC
code and turn on airbag warning lamps to inform the driver. The steering column has adopted energy-absorbing
design. In the event of frontal impact, it will contract, reducing the risk of driver injury.

Airbag control module receives the sensor signals to determine the severity of the collision. When the signal value
is greater than the memory settings, airbag ignition control module will send ignition command to unfold
corresponding inflatable airbag system module. When confronted with a large enough collision, front airbags will
expand and the preloader will be activated. When confronted with a large enough side collision, side airbags
curtain and seat belt preloader will be activated.

When airbag control module confirms the collision signal, it will send "collision unlock doors and stop fuel
supply" signal to the bus within 20 ms, a total of 30 cycles (100 ms a cycle, a total of 3 s). When BCM and EMS
receive more than three consecutive signals, respectively, unlocking doors and stopping fuel supply will be
implemented.

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