[汽车修理知识]Precautions for airbag use and maintenance

1 airbagThe correct use of
(1) The airbag must beseat beltWith the use of.Airbags are passive safety devices. They can only be used in conjunction with seat belts to obtain satisfactory safety protection effects. Therefore, the driver and occupantscarSafety belts must be worn during operation.
(2) Pay attention to daily inspections.Mainly check each collisionsensorWhether the SRS spiral cable in the steering wheel is intact and whether the grounding wire is clean, the connection is reliable, whether there is jamming when the steering wheel is rotating, to determine whether the SRS spiral cable in the steering wheel is intact; pay special attention to whether the SRS warning light is automatic when starting the vehicle Off, if connectedIgnition SwitchAfter 6-8s, if it still flashes or keeps on, it means that the SRS system is faulty. During operation, if the indicator light flashes for 5 minutes and then stays on, it also means that the SRS system is malfunctioning.
(3) Eliminate the failure of the airbag in time, otherwise there will be two serious consequences. One is that when the car is in a serious collision and the airbag needs to be deployed for protection, it cannot work; the other is that when the car is running normally and the airbag should not work, it suddenly expands and unfolds, giving the driver and occupants Cause undue accidental injury or even a safety accident.
(4) Avoid high temperatures. The parts of the airbag device should be kept properly. Don't leave it in a high temperature environment above 85℃, so as to avoid accidentally opening the airbag.
(5) Avoid accidental bumps and vibrations.airbagsensorOther components are very sensitive to collisions and impacts, so collisions and impacts should be avoided as much as possible to avoid unnecessary sudden deployment of airbags.
(6) Do not change the airbag system and its surrounding arrangements without authorization.Can not tamper with the wiring and components of the system without authorization and changebumperAnd the structure of the front part of the vehicle. Do not stick any decorations and rubber strips on the steering wheel and the passenger side airbag, so as not to affect the explosion of the airbag.
(7) The occupants should sit in the back row as much as possible. Children and small occupants should sit in the back row as much as possible when riding in a vehicle with airbags, because the airbags are not ideal for their protection.
(8) Keep airbag system components strictly in accordance with regulations. There are flammable and explosive materials such as gunpowder and booster tubes in the airbag system, which must be transported and stored in strict accordance with the regulations, otherwise it will cause serious consequences.
2 Precautions for airbag maintenance
(1) Non-professional airbag maintenance personnel are not allowed to inspect and repair airbags.
(2) Before starting the maintenance, the contents of the clock, anti-theft system and audio system should be recorded, including electric tilt and telescopicsteering system, Outside the electric carrearview mirror2. Vehicles with electric seats and electric shoulder strap system devices should be newly adjusted and stored after maintenance. The use of backup power sources outside the vehicle is prohibited.
(3) When the airbag is inspected and repaired, the ignition should beswitchPut it in the locked position, disconnect firstAccumulatorFor the negative pole, wait for 3 minutes. If the indicator light runs abnormally, wait for 10 minutes before proceeding to avoid accidents.
(4) When the airbag is removed and placed, the cushion (soft surface) should be facing up and away from water, oil, grease, detergent, etc.
(5) The methods of reading and eliminating the fault codes of the airbag system of different car models should be distinguished.
(6) It is forbidden to heat the airbag or igniter of the airbag or attempt to open it with tools.
(7) Pay attention to protecting the airbag components when disassembling, especiallyConnector. Before electric welding, the connector near the multi-function switch under the steering column should be removed to protect the airbag system.
(8) After disassembling the detonated airbag, wash your hands. If impurities get into your eyes, rinse them with clean water immediately to prevent damage.
(9) The components of the airbag must be packaged in the original factory, and the grades must be consistent. When the sensor mounting frame has been deformed, a new sensor must be replaced regardless of whether the airbag has exploded or not. At the same time, the sensor installation part must be repaired so that the sensor housing direction mark faces the front of the car. All the airbags that have been exploded must be replaced with new ones.
(10) During installation, the control device must be firmly installed according to the specified tightening torque, and the steering wheel can be installed after the spiral wire reel is centered.InstallWire harnessAt the same time, pay attention to the wiring harness not to be squeezed by other parts, and not to cross other parts.
(11) The electrical appliances can be tested after the airbag system is installed. The use of general multimeters is prohibited, and only special instruments can be used.
(12) Turn off the ignition switch before installation, and turn on the ignition switch after turning on the battery. Be careful not to move your head within the trajectory where the airbag is opened.
(13) The waste components of the airbag system should be properly handled. When detonating the waste airbag, pay attention to the safety of surrounding people and yourself, try to avoid residential areas and crowded places, choose a ventilated place, and take safety measures. After 10 minutes of detonation, the airbag will cool down and the smoke and dust will dissipate before the personnel can pass.
(14) It is strictly forbidden to disassemble the detonated airbag, because there are no maintainable parts in the airbag. It is also impossible to repair and reuse the detonated airbag.
(15) Airbags that cannot be detonated should be properly kept and handled in time.

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