Have you ever driven your car to work or left with your loved ones on a long journey and discovered a light on the dashboard called “SRS”?
If you have ever faced this problem, you have more than likely wondered why the light came on and how the problem can be remedied.
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Of course, you also wondered what the costs would be to fix the problem.
Well, whether you have been through such a situation or not, you will find out more about the SRS warning light below.
SRS represents the additional system of restraint or limitation of movement, and to be clear, we specify that this control is related to the airbag system.
There are car manufacturers that use a special airbag warning light, while others use the SRS warning light. Basically we are talking about the same light that has two different names, and when this light comes on board, there is a problem with an airbag, and it must be fixed right away.
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The airbag system of a car consists of an airbag control system, several emergency sensors and a different number of airbags from car to car.
As for the emergency sensors, they are mounted in front and on the sides of the car, and when a sensor detects a collision, it alerts the airbag control unit to control their action.
When the information is received by the airbag control unit, it transfers the information to the airbags, and they are triggered. Everything unfolds in the blink of an eye (more precisely in less than 0.4 seconds the airbag is actuated and at the same time it deflates).
It is said that the SRS warning light can light up on board for several reasons, and to detect the cause that triggered the warning light, it is recommended to use an OBD2 scanner that analyzes the entire airbag system.
Depending on the brand and model of the car, using such a scanner may cost more money than you initially expected.
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This reading with the OBD 2 scanner can also be done in an authorized car service, given that all the error codes in an SRS control perfectly describe the problem and are very accurate.
Most of the time, these problems are caused by improper outlets or occur due to connections. The control units monitor and measure between 2 and 5 ohms of the airbags, but if due to an improper connection the resistance exceeds 5 ohms, then the SRS witness will inform you there is a problem.
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Well, once this light comes on, even if you solve the problem on your own, or even if you drive to a mechanic , the light will be there until you manually clear the error codes using the ODB2 scanner mentioned above.
When working with an SRS system it is important to disconnect the car battery.
Another very important aspect that we must remember is that among the possible causes of ignition of the SRS indicator on board are also defective speed sensors, rain sensors, as well as others, but also electrical damage, improper connections in the plugs. faulty connection or airbags.
Faulty airbag
It often happens that an airbag fails due to the connectors located under the front seats of the car. They are usually yellow. It should be noted that these components (airbag connectors) will move each time the seats are moved forward or backward, or when they are raised or left further back.
For this reason, the chances of some unsuitable connections increase greatly, and this will lead to an error code.
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To eliminate these problems, we certainly want to take care of everything personally, but the best thing would be for the car to reach a specialist as soon as possible.
This is important because when the SRS indicator light is on board, the airbags do not work, and if you try to fix the problem on your own and do something wrong, you can deploy the airbags.
If you still want to try to fix the problem yourself, you should know that you do not have to measure the airbags with a multimeter when working with an SRS system. Furthermore, you need to remove the battery connections.
When dealing with such a repair, you must comply with the requirements mentioned in the repair book and you must not try to deviate from the requirements. Any small deviation from the requirements mentioned in the manual can cause the airbags to deploy when you are in traffic, and thus you will cause a road accident.
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Also, any deviation from the requirements mentioned in the book can cause airbags to not work in case of an accident.
Therefore, some conclusions for what was previously discussed above would be the following:
Ignition of an SRS warning light on board means a problem with the airbags;
The airbag system cannot operate due to the SRS warning light on board, so in the event of a traffic accident, if the SRS warning light is on, the airbags cannot provide protection;
It is necessary to remove the SRS indicator as quickly as possible from the board, for your safety;
Always remove the car’s battery and do not measure the airbags with the multimeter when working with the SRS system, and after working with this system eliminate the error codes. We must not forget that SRS problems can also be caused by improper connections under the front seats of the car;
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To repair the SRS system, observe the repair manual and do not improvise for your safety. There is a risk of the airbag deploying in the event of a fault.
So, here are some important details you need to know about SRS.
SRS on a Mercedes
Let’s also say where does SRS come from. So this abbreviation comes from Supplemental Restraint System. If this indicator light illuminates on a Mercedes, it is the same problem as on other brands.
In other words, there is a problem with the car’s airbags or with certain components in the SRS system. For example, airbags can deploy for no reason (this rarely happens), or worse in case of a collision the airbags do not open.
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If this warning light is still on the dashboard of your Mercedes, it would be good to go to a service center to diagnose this problem correctly, usually when you turn on the car this warning light comes on for a few seconds after which it goes out, if it does not go out do not postpone and fix the problem as soon as possible.
The components of the SRS system are checked frequently when the engine is started, only if there is a problem with one of the components of the system, the SRS indicator will light up on the car.
Unfortunately the SRS control does not reset itself and you will need a scanner to do this. Sometimes this warning light comes on when the vehicle battery is “dead”, unfortunately the warning light will need to be resetted even if you have replaced the battery with a new one.
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Photo source: frontdesk.com.my, twelfthroundauto.com, newsomelaw.com, ktas.com.au, quora.com
