Short answer: after an airbag or seatbelt pretensioner fires, the SRS control module stores crash data and locks, and no scan tool can clear it. A module reset clears that crash record so your original module works again, for all car makes, from $89. A reset does not replace deployed airbags, fired seatbelts or damaged sensors: those still have to be replaced before the light goes out.
The airbag warning light, often marked SRS, is one of the few dash lights you should never get used to. When it stays on, the car is telling you the airbag system has switched itself off or found a fault it can't work around. After an accident, the most common reason is that the airbag control module has recorded the crash and locked.
This guide explains what the light means, what you can safely check yourself, and how an airbag module reset gets your original module working again. If you already know the module holds crash data, you can go straight to requesting a quote, or read about our car ECU and module repair in Brisbane.
What the airbag light is telling you
A healthy system turns the light on for a few seconds at start-up as a self-test, then turns it off. Anything else is a fault. When and how the light came on narrows the cause down quickly.
| What happened | Usually points to | What it needs |
|---|---|---|
| Light on since an accident, airbags or seatbelts fired | Crash data stored in the SRS module, plus the deployed parts | Module reset, and replacement of every deployed part |
| Light on since a minor bump, nothing deployed | An impact sensor, a connector knocked loose, or crash data from a pretensioner that fired without you noticing | Read the SRS fault codes first |
| Light came on after a flat or replaced battery | A low-voltage fault code stored while the battery was weak | Charge or replace the battery, then read and clear the code |
| Light on after seat, steering wheel or stereo work | A connector left unplugged, or the ignition switched on while one was disconnected | Reconnect, then read and clear the code |
| Light flickers, or comes on when the seat moves or the wheel turns | A worn connector under the seat, or a failing clock spring behind the steering wheel | Wiring diagnosis, not a module reset |
| You bought a second-hand module and the light stays on | The donor module has crash data, or belongs to a different vehicle configuration | Reset of your original module is usually the simpler path |
Five safe checks before you book
These checks are all about looking and noting. Nothing here involves unplugging or testing an airbag circuit.
- Watch the light at start-up. Turn the ignition on and count. A light that comes on for a few seconds and goes out is the normal self-test. A light that stays on, flashes a pattern or never comes on at all is a fault. Note which one you see.
- Write down what happened just before. An accident, a flat battery, a jump start, a seat removed, a new stereo or steering wheel work. This history often identifies the fault before any tool is connected.
- Check the battery. A weak battery can set an airbag fault code in some vehicles. If the engine has been slow to crank or the car has needed a jump start, have the battery tested first.
- Look, don't touch, under the front seats. A water bottle, a floor mat or something pushed under a seat can strain the wiring there. Remove the object and check that nothing is visibly pulled or crushed. Leave the yellow connectors alone.
- Check the passenger airbag switch, if your car has one. Some vehicles have a key switch or a menu setting that turns the passenger airbag off, with its own indicator. Make sure it is in the position you expect.
What not to do
- Never test an airbag circuit with a multimeter or a test light. The small current these tools send down the wire can be enough to fire an airbag.
- Don't unplug yellow connectors with the battery connected. Yellow wiring and connectors are the usual marking for airbag circuits. The module also keeps a reserve of power after the battery is disconnected, so the manufacturer's waiting time has to be followed before anyone works near it.
- Don't fit a resistor or a "light off" bypass. It hides the warning while the airbag it replaces can't fire. It can also leave you with a car that is not roadworthy.
- Don't keep clearing the code and hoping. If it comes straight back, the fault is real.
How the airbag system works
The SRS (supplemental restraint system) is a small network with one decision-maker. Impact sensors around the car report to the control module, usually mounted under the centre console or the dash. In a crash, the module decides in a few thousandths of a second which airbags and seatbelt pretensioners to fire. Then it writes a record of what happened into its own memory.
Why a scan tool can't clear crash data
Ordinary airbag fault codes, like a low-voltage code or a connector that was unplugged, are "soft" codes. Fix the cause, clear the code with a scan tool that can talk to the SRS module, and the light goes out. A basic OBD reader often can't do even this, because many of them read engine codes only.
Crash data is different. Once the module has commanded a deployment, it writes a permanent crash record, often shown as "crash data stored" or an internal module fault. It is designed so that no scan tool can erase it: the code returns the moment you clear it. The module has done its job once and takes itself out of service.
From there you have two options: buy a new module and have it coded to the car, or have the crash record cleared from the memory of the module you already own.
What a module reset does, and what it doesn't
The crash record lives in a memory chip inside the module. A reset reads that memory, clears the crash record, returns the module to its pre-crash state and checks the result. Because it is still your module, it keeps the vehicle information and configuration it left the factory with, which is why in most vehicles it goes back in without dealer coding.
What a reset does not do is repair the rest of the system. The module will only turn the light off when everything it monitors is healthy again.
After a deployment, expect to replace or repair:
- Every airbag that fired. An airbag is single-use.
- Seatbelt pretensioners that fired. A fired belt often feels locked or slack, and it will not tighten again in a second crash.
- Damaged impact sensors and wiring in the crushed area.
- The clock spring behind the steering wheel, if the driver airbag fired or the wheel was disturbed.
If any of these is still faulty when the reset module goes back in, the light stays on. That is the system working correctly, not a failed reset. Tracing those remaining faults is the same kind of work as our vehicle electrical repair in Brisbane.
Reset or a new module?
| Option | What you get | Worth knowing |
|---|---|---|
| Reset your original module | The crash record cleared; the module keeps its original vehicle information | Usually the lowest cost, from $89, and normally no dealer coding. Not suitable if the module itself is damaged. |
| New module | A new part from the manufacturer | Costs the most and usually needs coding to the vehicle. The right choice when the module is crushed, burnt or water damaged. |
| Second-hand module | A used part from another vehicle | May carry its own crash data or a different configuration, so it can cost more time than it saves. |
Some manufacturers specify a new module after any deployment. For an insurance or dealer repair, check what your repairer requires before choosing.
Price: airbag module reset from $89
Airbag module reset at CQ Electronics starts from $89, for all car makes. The final price depends on the vehicle and the module, and we confirm it before any work starts. To get an exact price quickly, send us:
- The make, model and year of the vehicle.
- The part number printed on the module's label, or a clear photo of the label.
- What happened: which airbags or seatbelts fired, and any fault codes you have been given.
- Whether you are bringing the vehicle or just the module.
We work on vehicle modules at component level in our Seventeen Mile Rocks workshop, using the same approach described in our ECU repair case study. Workshop drop-off is by arrangement, and postal repairs are accepted Australia-wide for eligible electronics.
5% off every repair, or a 5% price beat
No competitor quote needed for the discount: every airbag module reset booked with CQ Electronics in Brisbane comes with an automatic 5% off the quoted price. And if you find a genuine lower price for the same repair elsewhere, we will beat it by 5%. The price beat can't be combined with the 5% off, so you get one or the other.
Frequently asked questions
How much does an airbag module reset cost in Brisbane?
Airbag module reset at CQ Electronics starts from $89. The final price depends on the vehicle and the module, and we confirm it before any work starts. Every repair also includes 5% off the quoted price. If you find a genuine lower price for the same repair elsewhere, we will beat it by 5%. The price beat can't be combined with the 5% off.
Can an airbag module be reset after an accident?
In most cases, yes. After an airbag or seatbelt pretensioner fires, the SRS control module stores crash data and locks. A reset clears that crash record from the module's memory so your original module can be used again, as long as the module itself is not damaged by impact, heat or water.
Will a reset turn the airbag light off?
It will if the stored crash data was the only fault. If an airbag has deployed, a seatbelt pretensioner has fired, or a sensor, clock spring or connector is damaged, those parts have to be replaced or repaired as well. Until they are, the light stays on, because the system is correctly reporting a fault.
Can I clear airbag crash data with an OBD scanner?
No. A scan tool can read and clear ordinary SRS fault codes, but crash data is stored as a permanent record that scan tools are not allowed to erase. The code comes straight back. The record has to be cleared from the module's memory, which is what a module reset does.
Do I need to reprogram the module after a reset?
Usually not. The reset keeps the module's original vehicle information and configuration, so in most vehicles it goes back into the same car without dealer coding. If your vehicle needs an extra step, we will tell you before the work starts.
Which car makes do you reset airbag modules for?
All makes, including Toyota, Mazda, Hyundai, Kia, Ford, Holden, Mitsubishi, Nissan, Honda, Subaru, Volkswagen, Audi, BMW and Mercedes-Benz. Send us the make, model, year and the part number printed on the module, and we will confirm the price for your vehicle.
Is it safe to drive with the airbag light on?
Treat it as unsafe. When the SRS light stays on, the system has found a fault and the airbags and seatbelt pretensioners may not work in a crash. Have the fault read and fixed before relying on the car.
Is a reset module the same as a new one?
A reset returns the module's memory to its pre-crash state; it does not repair physical damage. A module that has been crushed, burnt or wet should be replaced, not reset. Some manufacturers also specify a new module after a deployment, so for insurance or dealer repairs, check what your repairer requires.
Can I post my airbag module to you?
We accept postal repairs Australia-wide for eligible electronics. Contact us first with the make, model, year and module part number so we can confirm it is suitable, and pack the module so it cannot be knocked around in transit.
Will you beat a cheaper quote from another Brisbane repairer?
Yes. Every repair already includes 5% off the quoted price, and if you find a genuine lower price for the same repair elsewhere, we will beat it by 5%. The price beat can't be combined with the 5% off, so you get one or the other. Tell us about the other price when you request a quote.
Airbag light on after an accident?
Send us the make, model, year and the module part number. CQ Electronics resets airbag (SRS) modules for all car makes from our workshop in Seventeen Mile Rocks, Brisbane, from $89, with 5% off every repair, or a 5% price beat on any genuine lower price (not combined).
Request a quote →Related repair guides
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