General information
Supplemental Restraint Systems (SRS) are additional active protection for vehicle occupants in the event of a serious collision. The system components include airbags and seat belt pretensioners that are automatically activated as soon as sensors detect a serious frontal impact.
The pyrotechnic components of the SRS system may be potentially dangerous to service personnel if not handled correctly. The following instructions are intended to familiarize service personnel with the hazards of working with the SRS system and to explain the importance of maintaining the proper functioning of the SRS components installed in the vehicle.
To ensure reliable operation of the SRS system, periodic inspection and maintenance are required.
We have provided additional precautions in the relevant sections of the "Manual". All instructions must be read before attempting to repair the system.
WARNING: Always follow the SRS operating procedures and the recommended maintenance and repair procedures. Personnel authorized to work on the SRS system must have received special training and have copies of the SRS operating procedures.
CAUTION: Do not perform any work on the SRS system until you have read the relevant sections of this Manual.
CAUTION: The air bag module contains sodium compounds, which are toxic and extremely flammable. Any contact with water, acids or heavy metals may result in an explosion or other adverse effects. Do not disassemble, incinerate or expose to electricity any air bags that are not activated.
WARNING: A seat belt that has been subjected to a critical load during a collision or shows signs of damage must be replaced with a new one.
CAUTION: Before performing electric welding on a vehicle equipped with the SRS system, the battery must be disconnected.
CAUTION: Do not expose the air bag module or seat belt pretensioner to temperatures exceeding 85°C.
It should be noted that precautions are not limited to repair and maintenance operations on the SRS system. The same precautions should be taken when working on other systems and components located near the SRS components, the list of which includes, but is not limited to, the following items:
- Steering - Driver's front airbag, rotary contactor
- Control Panel - front passenger airbag (if installed), SRS control unit located behind the center console on the transmission tunnel, under the climate control unit.
- Front seats - front seat belt pretensioners built into the seat belt buckles.
- Electrical equipment - SRS wiring harnesses, connecting wires and connectors
Follow all safety precautions when working with the airbag system.
Before working on or near the SRS components, make the system safe by performing the following steps.
- Remove the key from the ignition.
- Disconnect both terminals on the battery, first the negative terminal.
- Wait 10 minutes for the SRS control module backup circuit to be de-energized.
The SRS system is powered by backup capacitors, which ensure that the system is activated in the event of damage to the power supply system during an accident. Sufficient time (10 minutes) must pass for the capacitors to fully discharge. This will eliminate the possibility of accidental activation of the system.
WARNING: Always remove both battery terminals before operating the airbag system. First disconnect the negative terminal. Never mix up the wires when connecting to the battery pack.
The original was published on the portal LRMAN.RU
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