An airbag (SRS) warning light that stays on after accident repairs, a seat or steering wheel removal, or a windscreen or dash job usually means the airbag control module has stored a fault code. Until that fault is found and fixed, the airbags may not deploy in a crash, so this is a safety job, not a cosmetic one. To read and clear SRS codes you need a scan tool that talks to the airbag module, not just the engine. The X431 PROS Elite and the X431 V+ 5.0 PRO3 both list Airbag / SRS among the systems they diagnose, and the CRP129X Plus V3 lists the SRS Airbag module in its all-system coverage.
Launch Dealer SA is based in Midrand, South Africa, and supplies LAUNCH diagnostic tools to workshops in South Africa and across Africa.
Why does the airbag light come on?
The SRS module checks the airbags, seatbelt pretensioners, crash sensors and their wiring every time the ignition is switched on. Common reasons the light stays on in a workshop:
- Seat removal or seat work. Unplugging a seat with the ignition on, or a loose seat connector, often logs a seatbelt pretensioner or side airbag fault.
- Steering wheel or clock spring work. A worn or misaligned clock spring is a classic cause of a driver airbag circuit fault.
- Accident repairs. Replaced crash sensors, bumpers, dash or airbag parts that were not fitted or plugged in correctly.
- Low battery voltage. A flat or weak battery can leave voltage-related codes stored in the module.
- Water or corroded connectors. Especially under the seats.
- Occupant sensor faults. The passenger seat sensor that decides whether the passenger airbag should arm.
The code and its description tell you which circuit to check, so you are not guessing or replacing parts blindly.
Read the code before you clear it
Clearing an SRS code without fixing the cause just brings the light back, and leaves the car unsafe. A good routine is:
- Read and note all SRS fault codes, and whether each one is current or stored.
- Check the battery voltage, then the connector or part the code points to.
- Repair the fault, following the vehicle maker's airbag safety procedure (battery disconnected and waiting time before touching airbag parts).
- Clear the codes, switch the ignition off and on, and scan again to confirm the light stays off.
Our fault codes guide explains current and stored codes, and our live data guide shows how to watch values such as seat belt switch or occupant sensor status where the vehicle supports it.
After an airbag has deployed: many SRS modules store crash data that a normal code clear will not remove. None of the product pages below lists a crash data reset, so plan for the module and parts the vehicle maker specifies.
X431 PROS Elite: SRS work in a busy bay
The X431 PROS Elite lists full-system diagnostics including the engine, automatic transmission, ABS and Airbag / SRS, with reading and clearing of codes, live data and bi-directional testing. Its 32+ service functions also cover Steering Angle Calibration, which is often needed after steering column or clock spring work. The product page notes that functions vary by make, model, year and control module.
X431 V+ 5.0 PRO3: SRS plus coding
The X431 V+ 5.0 PRO3 communicates with modules including the engine, transmission, ABS, SRS/Airbag, body control module and steering. It adds ECU coding and adaptation on supported vehicles, which helps when a replaced part needs coding to the car. It suits workshops doing accident repair work on a mix of makes.
X431 IMMO Elite: if you also do key and module work
The X431 IMMO Elite lists full-system diagnostics including SRS/Airbag, alongside key programming and module functions. It makes sense if airbag lights are one part of a wider auto electrical and immobiliser business.
CRP129X Plus V3: reading SRS codes on a budget
The CRP129X Plus V3 scans all systems, and its product page lists the SRS Airbag module among the body modules, with reading and clearing of codes and live data. It is a good fit for a small workshop or car owner who mainly needs to find out why the airbag light is on. It does not list bi-directional tests or coding in its standard functions.
What about the PRO3 APEX and CRP123X Plus?
The X431 PRO3 APEX lists reading and clearing fault codes across all major vehicle systems, but its product page does not name the airbag module, so confirm your vehicle before buying it for SRS work. The CRP123X Plus product page focuses on engine faults and does not list airbag systems.
Which tool for airbag light work?
| Your situation | Start with |
|---|---|
| General workshop seeing airbag lights after seat, steering or dash work | X431 PROS Elite |
| Panel and accident repair shop working on many makes, with coding | X431 V+ 5.0 PRO3 |
| Auto electrician also doing keys and modules | X431 IMMO Elite |
| Small workshop or car owner who needs to read and clear SRS codes | CRP129X Plus V3 |
Coverage depends on the exact vehicle. Software updates are sold for your sales territory, so buy from a dealer who supplies yours. Read how LAUNCH software updates work.
See it working before you buy
Visit our showroom at Shop AG008, Midrand Motor City, to see an SRS scan on a demo unit. Can't get to Midrand? Book a WhatsApp video demo. Then get the X431 PROS Elite, the X431 V+ 5.0 PRO3 or, for reading airbag codes on a budget, the CRP129X Plus V3.
Questions we get asked
Why is my airbag (SRS) light still on after repairs?
The airbag module has stored a fault code, often from a seat or steering wheel unplugged with the ignition on, a clock spring, crash sensor or connector fault, or low battery voltage. Read the code to see which circuit to check.
Can I just clear the airbag light?
Only after the fault is fixed. If the cause is still there the light comes back and the airbags may not work in a crash. Read the codes, repair the fault, clear the codes and scan again.
Which LAUNCH tools read airbag codes?
The X431 PROS Elite, X431 V+ 5.0 PRO3 and X431 IMMO Elite list Airbag/SRS in their full-system diagnostics, and the CRP129X Plus V3 lists the SRS Airbag module in its all-system coverage.
Can these tools reset crash data after an airbag deployed?
None of their product pages lists a crash data reset. After a deployment, plan for the module and parts the vehicle maker specifies.
Can I see a demo if I'm not near Midrand?
Yes. Book a WhatsApp video demo from our booking page, or visit our showroom at Shop AG008, Midrand Motor City.
