Chery A15. Manual - part 127

 

signal, the airbag will be activated and 
inflated. 

 
 
 
 
 
 

----When removing the liner of the steering 

wheel or installing the new one, the upper 
surface of the liner should face upward. At 
this moment, place the lock rod of the 
double-lock connector at the locking state 
and place it carefully to prevent it from 
damaging the connector. When storing, do 
not place one liner on top of another liner. 
(If the metal surface of the liner is placed 
to face upward, it may result in serious 
accident when the airbag is activated 
accidentally.) 

 
 

----Do not measure the resistance of the 

activation device of airbag. (This will 
cause accidental activation of the airbag. It 
is extremely dangerous.) 

----Do not apply any grease on the liner of 

steering wheel, and do not wash it with 
any kinds of detergents. 

----Store the liner of steering wheel at the 

place where the environmental 
temperature is lower than 93℃（200℉）
and the humidity is lower than 40%, and 
away from electrical noises. 

----Disconnect the airbag connector before 

carrying out any welding work. 

----When discarding the vehicle or the liner of 

the steering wheel separately, the airbag 
should firstly be activated with special 
maintenance tools. 

 

Incorrect placement 

Correct placement 

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6. BCM（AIRBAG CONTROL MODULE） 

----The BCM (airbag control module) (See 

figure) is installed on the floor under the 
heat exchanging radiator. The BCM 
(Airbag control module) includes airbag 
sensor, safety sensor, diagnosis circuit, 
ignition controlling and driving circuit. It 
receives the signal from airbag sensor and 
determines whether to trigger the SRS 
system. 

 

----In case any collision accident happens and 

causes the airbag to activate, do not use 
the airbag computer again. 

----The maintenance work (even if it is only 

loosening the fastening bolts of the central 
sensor assembly of the airbag) must be 
carried out at least 5 minutes after turning 
the ignition switch to “LOCK” position 
and disconnecting the battery negative 
cable. 

 

7. WIRING AND CONNECTOR 

The wirings of SRS system are all installed in 
a yellow corrugated conduit, and the 
connectors are all normal yellow. If by any 
accident, the wiring has been loosened or the 
connector damage, they must be repaired or 
replaced according to related instruction.   

 

8. SRS CONNECTOR 

The connectors of SRS system are all yellow 
in order to be identified from other 
connectors. 

The connectors of SRS system are facilitated 
with special functions and specific designed 
features to ensure high reliability. These 
terminals are using durable gold-plated 
terminals. The double locking plate locks the 
electronic connection terminal mechanism, 
which can prevent the terminal from sliding 
out. As shown in the figure: 

 

Double 
locking plate

Airbag connector 

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NOTES ON SAFETY OPERATION 

During the maintenance, if the proper procedures are not followed, the airbag system may 
activate unexpectedly resulting in serious accident. The fault arising during the maintenance 
work may cause the inability of the activation of airbag when it is required to function. 
Therefore before carrying out any maintenance (including removing, installing, testing or 
changing for the components), the maintaining personnel must read all the instructions below 
carefully, and carry out the maintenance according to the following proper procedures 
specified by the maintenance manual.   

(1) Sometimes the malfunction of SRS (supplementary protective system) is difficult to 

ascertain, therefore the malfunction codes become the most important information 
resource of troubleshooting. When diagnosing the supplementary protective system, 
check the malfunction codes firstly at all time, and then disconnect the battery. 

(2) The maintenance work must be carried out at least 5 minutes after turning the ignition 

switch to “LOCK” position and disconnecting the battery negative cable, because the 
supplementary protective system has its own backup power supply. 

(3) Even if the SRS is not activated after a slight collision, the airbag assembly and the airbag 

sensor assembly must be inspected also. 

(4) Do not use the SRS components from other vehicle. Only new components are allowed 

for replacement if necessary. 

(5) Do not repair the steering wheel airbag assembly and the airbag sensor assembly for the 

purpose of reusing. 

(6) Do not allow the steering wheel liner to shake, or come close to some magnets. Do not 

allow the steering wheel liner and the airbag sensor assembly to expose in the hot air or 
flame directly. 

(7) If the steering wheel liner and the airbag sensor assembly have already been dropped 

down, or there are cracks, dents or other defects on the housing, support or connectors, 
they should be replaced with new ones. If there is any liquid such as grease, detergent, 
engine oil or water on the steering wheel liner, clean it with a dry cloth immediately.   

(8) Store the steering wheel liner in a flat and stable place, and face the top side upwards after 

the removal. Never place anything on top of it. 

(9) The airbag must be disposed firstly when discarding the vehicle or the steering wheel 
liner. 

(10) The inflating device in the steering wheel liner will become very hot after the airbag is 

spread. Discard it only after it has been naturally cooled down.   

(11) High resistance (at least 10kΩ/V) type volt-ohm meter should be used for diagnosing the 

malfunctions in the electrical circuit. 

(12) The “notes” indicated on the tag at the peripheral of SRS components must be strictly 

 

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followed. 

(13) After finishing the maintenance work for the supplementary protective system, the status 

of SRS warning lamp should be inspected. 

 

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