Lifan 620 Maintenance Manual page 275

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resistance.
3. Read out the flash DTC (Diagnostic Trouble Code) before removing the battery ground line
when clear off air bag system fault.
4. Remove the negative ground line of the battery before carrying out specific maintenance. Then
wait for over 3min and perform maintenance operation, or the air bag may be unexpectedly
deployed. The negative electrode removed shall be wrapped with insulating tape for insulation.
Note: Wait for over 3min before carrying out any operation after disconnecting the battery, or the
unexpected deployment of air bag may result in serious accident!
5. After slight collision, check driver air bag module and air bag ECU assembly even if the air bag
has not been deployed.
6. Remove air bag ECU assembly before maintenance if the sensor can be vibrated during the
maintenance.
7. Forbid to reuse the air bag system components removed from other vehicles. Renew if
necessary.
8. Disassembling and repairing for repeated usage or other reasons of driver and front passenger
air bag modules and air bag ECU assembly are not allowed.
9. If accidentally dropped, vibrated or knocked, driver air bag module, front passenger air bag
modules and air bag ECU assembly shall be renewed. If crack, impress or other damages are
discovered on the housing, support or interface, also renew these components.
10. Direct contact with hot air or flame of driver air bag module, front passenger air bag module
and air bag ECU assembly is unallowable.
11. Remove such components as air bag ECU, air bag module, clock spring, and so on, during
spray-painting operation, or these components may be affected due to the high temperature
(above 93 ).
℃
12. The air bag ECU interface, interfaces for the connection between air bag ECU assembly and
clock spring, clock spring and driver air bag module, as well as front passenger air bag module
and air bag ECU assembly, are all provided with protection mechanism for the unexpected
development of air bag. Operate as per the maintenance requirements to avoid the unexpected
deployment of air bag and the damage of components.
13. Pay attention to the warning label on the component of the air bag system and the relative
positions inside the vehicle. Follow the operation requirements specified on the label.
14. During the maintenance of the air bag system, the air bag module must be immediately
installed after being taken out from the transportation device. Return the module to the
transportation device if the installation is terminated. It is not allowed to place the module
unattended. Keep the deploying side of the air bag upwards when storing the removed air bag
module.
15. Electrical inspection shall be carried out first after finishing the maintenance of the air bag
system. Connect the air bag with the circuit only after ensuring the electrical system is all right.
16. Nobody is allowed to stay in the vehicle when connecting the air bag system with the power
supply. Do not connect with the power supply before well fixing the air bag ECU.
17. Check the operation of SRS warning lamp after finishing the maintenance of the air bag
system.
18. Refer to the Instruction Manual for the service-life of the air bag. Renew the air bag and label
when it is out of its service-life.
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