Chery A15. Manual - part 125

 

BCM should not be used any more. 

When replacing the BCM, the arrow on the BCM must point to the direction right ahead of 
the vehicle. 

The BCM must be horizontally installed onto the installation plane, and parallel with the 
coordinate axis of the vehicle body.   

In order to avoid the occurrence of malfunction codes during the diagnosis, do not connect 
the power supply to the airbag system or turn on the power supply according to the special 
requirements listed in the diagnosis table before all the system components are connected 
properly. 

The SRS diagnosis system inspection must be the starting point of any SRS system diagnosis. 
The SRS diagnosis system inspection can check whether the indicator function is proper, and 
direct the accurate method of diagnosing any SRS malfunctions. Omitting these procedures 
may result in longer diagnostic time or inaccurate replacement of components. 

(4) Maintenance and inspection after the accident 

Warning: Any maintenance of the vehicle structure must ensure to restore the vehicle to its 
original state. The activated airbag needs to replace the BCM control module and airbag, and 
inspect the dimension of the steering column. 

All the SRS components must be replaced after been defective. If the installation point for the 
SRS component is damaged, it must also be replaced. 

Never use SRS spare parts from other vehicles (not including the new type SRS components 
from the same model vehicle). 

Do not try to repair the hairspring spring, airbag and seat belt. If there is any defect, these 
components must be replaced. 

Check the part number or part marking of the SRS components after replacement. The airbag 
air generators that are alike in the appearance may have different internal structure. 

(5) Replacement of activated airbag components after accident 

All the SRS components must be replaced immediately after airbag had been activated in the 
accident. After the airbag is activated, there may be powder like leftover on the airbag surface. 
These leftover mainly includes the amylum and chemical reaction product (for lubricating the 
airbag during the inflation).   

Airbag 

Airbag control module 

SRS wiring harness   

(6) Inspection of inactivated airbag components after the accident 

Irrespective of whether the airbag has been activated or not, a specific inspection must be 
carried out after any collision accidents. 

 

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A dimension measurement for the steering column must be carried out. 

Check whether there is any crack or other damage on the instrument panel and steering 
column guard. 

Check whether there is any deformation, bending, crack or other damage on the instrument 
panel support   

Check the seat belt and installation fastening point. 

(7) Activation and spreading of the airbag (in the vehicle) 

The airbag must be activated and spread before the vehicle is discarded. If the vehicle is 
discarded and disassembled, the airbag may be activated in the vehicle. 

(8) Disposal of activated airbag 

Warning: In order to prevent any injury in case the airbag is activated in the vehicle, please 
follow the preventive measures as follows: 

Before spreading the airbag, remove all the removable objects or loose components within 
the spreading range. 

The airbag shall be activated and spread after closing the vehicle doors and opening side 
windows. 

Spread the airbag only in the prepared airbag spreading area. The servicemen have to 
participate in should stay at least 10 meters away in front of the vehicle. 

Do not apply any voltage before completing all the preparation works. 

Cool down the airbag for at least 30 minutes before handling with the activated airbag. 

Please wear suitable gloves and protective goggles during the discard process. 

If the activation and spreading of the airbag fails, cut off the voltage and waiting for at least 5 
minutes before approaching the vehicle. 

(9) Process of activation and spreading 

Warning: When the ignition is turned off and at the same time the fuse is taken out, the airbag 
control module (BCM) can provide the sufficient voltage for 1 minute to activate the airbag. 
If the airbag is not disconnected, do not start the maintenance work within 1 minute after 
disconnecting the power supply to BCM. If the airbag has been disconnected, the 
maintenance work can be carried out immediately without waiting for the discharge of 1 
minute. The failure of shutting off the SRS system temporarily during the maintenance will 
result in false ignition, physical injury and SRS system discarded.   

Disconnect the two grids of the battery and place the battery 10 meters away from the vehicle. 
Remove the lower panel of the driver side instrument panel from the steering column; 
disconnect the two SRS wiring harnesses that connect to the clock spring under the steering 
column. Peel off the 13 mm insulated outer layer of the wiring harness end that connects to 
the clock spring. Connect the airbag and the battery used to activate the airbag with 2 extra 

 

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wiring harnesses of at least 10 meters long each. Peel off the 13 mm insulated outer layer of 
the 2 extra wiring harness ends, and tie the two ends of the wiring harnesses together. Place 
the tied ends beside the battery use to activate the airbag, but do not connect it to the battery 
at this moment. Connect the other two loose ends of the extra wiring harnesses separately to 
join up with the wiring harnesses connecting the airbag, and insulate the connection point 
with insulated tape. That means each end of the two extra wiring harnesses should be 
connected to the two wiring harnesses of the airbag separately, and the other end of the extra 
wiring harnesses should be tied together and place beside the battery. Clear the site. 

Loosen the wiring harness end beside the airbag activation purpose battery, connect one wire 
to the negative grid of the battery, and the other to the positive grid of the battery, and the 
airbag is immediately activated. 

Dispose the activated airbag according to the proper preventive measures. Please refer to the 
“Disposal of activated airbag” of this manual. 

(10) Activation and spreading of airbag (outside of the vehicle) 

If the vehicle is within the guarantee period, please contact with the region maintenance 
manager for the approval and other specifications before activating and spreading the airbag. 

Please activate the airbag under the following conditions: 

The vehicle will be disassembled. Please refer to the “Airbag Spreading” of this manual. 

The airbag is damaged during shipment, storage or maintenance. 

Warning: In order to prevent any injury when the airbag is activated outside of the vehicle, 
please take the preventive measures as follow: 

Spread the airbag only in the preserved airbag spreading area. The servicemen have to 
participate in should stay at least 10 meters away in front of the vehicle. 

Do not apply any voltage before completion of all the preparation works. 

Cool down the airbag for at least 30 minutes before disposal of activated airbag. 

Please wear the gloves and protective goggles during the discard process. 

If the activation and spreading of airbag fails, approach the vehicle at least 5 minutes after 
shutting off the voltage. 

Face the front side of the airbag upwards and place it horizontally on the outdoor flat ground 
for at least 10 meters away from the people or barriers. 

Place the vehicle battery 10 meters away from the airbag. 

Activate and spread the airbag:   

If there is no airbag spreading tool, please follow the specifications below: 

Disconnect the yellow wiring harness connect to the airbag; 

Peel off the 13 mm insulated outer layer of the wiring harness end that connect to the airbag; 

 

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Connect the airbag and the airbag activation purpose battery with two extra wiring harnesses 
of at least 10 meters long each; 

Peel off the 13 mm insulated outer layer of the two extra wiring harness ends; 

Tie the two ends of the two extra wiring harnesses where its insulated outer layers have been 
peeled off; 

Place the tied ends beside the airbag activation purpose battery, but remember not to connect 
to the battery at this moment; 

Connect the other two loose ends separately to join the wiring harnesses connecting the 
airbag; 

Bind the joint point with insulated tape; 

Each end of the two extra wiring harnesses should be connected to the two wiring harnesses 
of the airbag separately, and the other end of the extra wiring harnesses should be tied 
together and place beside the airbag activation purpose battery. Clear the site. 

Loosen the tied end beside the airbag activation purpose battery; 

Connect one wire to the negative grid of the battery, connect the other wire to the positive 
grid of the battery, and the airbag is immediately activated. 

Dispose the activated airbag according to the proper preventive measures. Please refer to the 
“Disposal of activated airbag” of this manual. 

(11) Activating the airbag before discarding 

This specification is applicable for all kinds of vehicles to be discarded and disassembled. If 
the vehicle is within the guarantee period, please contact the region maintenance manager for 
the approval and other specifications before activating and spreading the airbag. Besides the 
extra steps listed below, the activated and spread airbag should be treated with the same 
measures of other components to be discarded and disassembled. 

Place the activated airbag into a tough plastic bag; 

Ensure to seal the plastic bag properly; 

Wash both hands carefully after disposal of the activated airbag. 

(12) Maintenance of SRS system wiring harness 

Warning: Before carrying out any maintenance, the SRS system must be disconnected. Please 
refer to “Disconnection of airbag system” of this manual. 

The connectors used in the SRS system are made of special material to ensure the good 
conductivity of the low power circuit. The airbag wiring harness assembly must be replaced 
if the plug is damaged. Do not try to use any other type of connectors to replace the connector 
of this connector. 

 

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