airbag symbol warning light

Reset Airbag Codes/Light Without a Scanner – Is it possible?

In Airbag by Magnus Sellén7 Comments

airbag symbol warning lightWarning lights can be scary when you are driving and you can’t immediately figure out what is wrong with your car.

The engine and airbag lights are some of the dashboard lights that you need to take a particular interest in. Airbags are designed in such a way that they inflate whenever there is a collision.

However, faulty sensors can cause your airbag light to remain continuously on. The question that comes to mind for many drivers is, “Can you remove the airbag light without a scanner or blowing it up in the process?”

How do airbags work?

Airbags are lifesavers when you are speeding and hit another car head-on or hit a stationary object. If you do not have an airbag, you could find yourself being thrown through the windscreen. When you hit something at high speed, your car will start to decelerate, and this will activate an accelerometer that triggers the airbag circuit.

The airbag circuit has a heating element that is activated through an electric current. This heating element promotes an explosion inside the airbag that rapidly generates a harmless gas. Most of the airbags use sodium azide as the explosive element and the gas produced can either be argon or nitrogen. This gas floods the airbag and causes it to expand; hence, protecting the driver from injuries by occupying the steering wheel and at times the side. The airbag acts as a cushion.

The first thing you need to understand is how airbags are deployed in the car in case of an emergency.

How to safely reset the airbag light

airbag lightNow that we know how airbags operate, it is time to learn how to disable a faulty airbag light. Airbags have sensors and a signal module that are used for deployment in the case of an accident. With time, the airbag sensor and module will stop functioning well due to wear.

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In the passenger seat is an occupancy sensor that sends signals concerning the passenger weight and prevents unnecessary deployment when you are carrying stuff on the seat.

Some cars have a “passenger seat Airbag on/off button.” This is the first airbag light you should check when you want to remove the airbag light without a scanner. If the light is functioning well, it should turn on when someone occupies the passenger seat.

You can have the set removed and a new pad put in place, or you can bypass the occupancy sensor and install affordable plug and play kits. This will activate the passenger airbag when the car is running, but you will have to disallow children from sitting there.

You will need to be extremely careful when working with the airbag connections. One wrong turn could cause the airbag to blow up in your face. The benefit of using a plug and play kit is that you do not need to disconnect the yellow connectors underneath the seat.

The wires simply bypass the module in the car. Alternatively, you can use a universal kit but, you will need to split the wires – something that is hard if you are not an electrician.

Can you reset the airbag system without a scanner?

You should always check the airbag codes with a scanner and repair the problem before trying to reset the light. 

It’s possible to reset it without a scanner, but you do not really want to reset an airbag light when the problem is still occuring, because you can cause the airbags to deploy.

Check the wiring system underneath the car for any loose wires. If this is not the problem, then you need to check the airbag clocking system. You will find this system between the steering wheel and the steering column. The clock spring is responsible for the steering wheel mounted buttons, airbag deployment, and car horn. If the horn is also malfunctioning, it means you have to dismount the steering wheel.

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Fixing the clocking system

airbag clock springSince you want all your capacitors discharged, you will need to remove the negative cable on your battery for 10 to 15 minutes. With your wheels and steering wheel in a straight position, find screws that hold the steering wheel in place.

The center screws also hold the airbag in place. Look for the connector and once removed, you can pull the airbag out. Remove the steering column. The screws may be hard to locate, and this will require that you rotate it to the left and right. Have some painters to acts as alignment when returning the steering wheel. A faulty clocking system is one cuase a faulty airbag light.

Replacement with a new one is one way you can remove the airbag light without a scanner.

Next, loosen the steering nuts using a breaker bar. This ensures that you do not remove the steering wheel completely. Pull it back and forth because the steering wheel could be strongly attached to the steering shaft. Once this becomes loose to remove the nuts on the steering wheel, you should see the clocking spring. You will notice some form of a harness that connects the clocking springs at the bottom and back of the steering wheel. Most of the time, the clocking spring is held in place by clips, but you may find some bolts.

Install your new clocking spring. You will find a tab that comes with it; break this off by bending it. Fix any connecting wires and re-install your steering wheel. To test whether the new clocking spring is working, check your horn.

Checking the passenger airbag circuit connection and the clocking system are some of the ways that you can remove the airbag light without a scanner. If all of these do not work, you may be forced to check the error codes from your onboard diagnostic computer and send them to professionals.

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Dashboard lights inform the driver that there is something wrong with their car. The engine and airbag light needs closer attention as it leads to further problems if not attended to. If your airbag light keeps coming on, you may need to check connections on the passenger seat and the clocking system.

The passenger seat has an occupancy sensor that, when malfunctioning, can lead to the rapid deployment of the airbag. Fixing the sensor will solve this problem. The other problem could be with the clocking system. The system controls the car horn and steering wheel deployment. If it is faulty, you will need to reset the airbag light without a scanner. You will first need to dismantle the steering wheel before installing a new clocking system.

Hello I'm Magnus, the owner and the writer of this website. I have been working with cars since I was 16 and I'm specialized with in-depth Automotive diagnostics. Also been driving drifting for the last 6 years. I'm here to give you answers to all your automotive questions and I hope that you enjoy our content.

7 thoughts on “ Reset Airbag Codes/Light Without a Scanner – Is it possible? ”

  1. Just installed a horns and air bag lights comes on .how to clear it

  2. I have bought 2003 Toyota Highlander.
    The problem I have is concerned with the srs warning light which never comes on even when I turn the key to on position.
    There was an old problem with seat belts pretensioneers connection which was already solved and the srs ECU gives no codes now.
    The problem was that the pretentioneers plugs were disconnected by somebody and black protecting detailes were lost, so the srs module gave codes that there was short circuit in pretentioneers. I put a plastic streaps into the slots to isolate the shorting contacts and now the srs module get proper resistance of the pretensioneers.
    I checked the wire from srs module to instrument cluster: it is OK. The signal on this wire gets about 5V DC when I turn the key to on. But the diode on the pc board of the cluster does not come on.
    What do you suggest to check further to find the reason of the problem.
    I do not believe that it could be the burnt LED. All other lights come on when I put the key on.
    May be some smart guy made a trick to make the light dead instead of solving the problem with pretentioneers ?
    I have checked the instrument cluster itself and didn’t find any sign of specific action done.

  3. I have Ford fiesta that involves in accident there’s no passaer air there’s no other option to switch off the air bag light

  4. Is it possible to by pass an airbag light on my 2006 Citroën C2 Furio? I’ve fitted an aftermarket steering wheel and am Due an MOT in December, Please Help 🙂

  5. Looking for a scan to to rezero the seat calibration o occupancy sensor on my 2004 Suzuki XL-7 thanks.

  6. I hit a deer in a 2013 Hyundai veloster. Air bags did not deploy. After getting the car repaired the airbag light stays on. I am unsure if it is possible that the airbags should of deployed a had a fault or if it is acting up. I have a scanner for check engine light. Should I see what the code is and reset it?

  7. Hi have a Mercedes 1991 300 ce SRS light came on I bought a code reader 2/3/8 codes came up I cleared then the light went off for a while then came back on the car has been sitting for 7 months it was fine before that any clues

  8. Due to a very high demand and high ammount of comments, you have to wait for some time for your car questions to get answered. If you want to get fast answers from a certified master technician you can ask your questions here:
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