Best picks

9 Best OBD2 Scanner With ABS and SRS (November 2026)

Updated on · By the Cars Diagnostic Tool team

The best OBD2 scanners with ABS and SRS diagnostics include the MOTOPOWER MP69033 Car OBD2 Scanner Code Reader for check engine work only, the BlueDriver Bluetooth OBD2 Scanner (best overall for abs and srs), and the TOPDON AD600S OBD2 Scanner for built-in reset functions.

On this page (8 sections)
  1. The best OBD2 scanners with ABS and SRS for different needs
  2. How these scanners compare
  3. How we compared these scanners
  4. Does a cheap code reader read ABS and SRS?
  5. What should you check before buying an ABS and SRS scanner?
  6. Which systems does each tool actually read?
  7. Which scanner fits your car and budget?
  8. Verdict: which OBD2 scanner with ABS and SRS should you buy?

The best OBD2 scanner with ABS and SRS for most people is the BlueDriver Bluetooth OBD2 Scanner, which reads and clears airbag and anti-lock brake codes on a wide range of vehicles through a phone app with no subscription. Pick the TOPDON AD600S if you want a standalone screen and reset functions built in.

Engine-only code readers cannot see the brake and airbag modules. If your ABS or SRS light is on, a basic reader will only tell you the engine is fine.

That is why this list splits the picks between full multi-system tools and cheaper engine readers for buyers who don't need the extra coverage.

Our picks at a glance

  1. 1 MOTOPOWER MP69033 Car OBD2 Scanner Code Reader
    Best for check engine work only

    MOTOPOWER MP69033 Car OBD2 Scanner Code Reader

    9.7/10 our score

    See it on Amazon
  2. 2 BlueDriver Bluetooth OBD2 Scanner
    Best overall for ABS and SRS

    BlueDriver Bluetooth OBD2 Scanner

    9.0/10 our score

    See it on Amazon
  3. 3 TOPDON AD600S OBD2 Scanner
    Best for built-in reset functions

    TOPDON AD600S OBD2 Scanner

    8.7/10 our score

    See it on Amazon
  1. 4Foxwell NT604 Elite Scanner

    Foxwell NT604 Elite Scanner

    Best for pinpointing a warning light
    Check it
  2. 5LAUNCH CRP123 V3.0 Elite OBD2 Scanner

    LAUNCH CRP123 V3.0 Elite OBD2 Scanner

    Best for DIYers who want resets
    Check it
  3. 6Foxwell NT301 Code Reader

    Foxwell NT301 Code Reader

    Best for emissions and smog checks
    Check it
  4. 7Innova SD35 ABS and SRS Scanner

    Innova SD35 ABS and SRS Scanner

    Best for guided repairs
    Check it
  5. 8ANCEL AD310 Code Reader

    ANCEL AD310 Code Reader

    Best budget engine reader
    Check it
  6. 9ANCEL AD410 Enhanced OBD2 Scanner

    ANCEL AD410 Enhanced OBD2 Scanner

    Best for first-time drivers
    Check it

The best OBD2 scanners with ABS and SRS for different needs

BlueDriver is the strongest all-round pick for airbag and brake work, while the other tools here suit buyers who want a built-in screen, a lower price or simple engine checks. Choose by the systems you actually need to read.

2

BlueDriver Bluetooth OBD2 Scanner: Best overall for ABS and SRS

BlueDriver Bluetooth OBD2 Scanner, OBD2 scanners with ABS and SRS diagnostics
9.0/10Our score
  • Reads and clears ABS, SRS, TPMS and transmission codes on supported vehicles
  • Live data and Mode 6 results in the app
  • Wireless connection to iOS or Android
  • No subscription fees

The strongest all-round choice for airbag and brake diagnostics. Enhanced codes, live data and repair guidance all come through the app at no ongoing cost.

See it on Amazon

Pros

  • ABS and SRS coverage on supported vehicles
  • Live data and freeze frames
  • No subscription

Cons

  • Needs a phone or tablet to show results
  • Enhanced coverage varies by make and model

BlueDriver suits an owner who wants the deepest system coverage without buying a big handheld. It reads and clears codes from the engine, ABS, SRS, airbag, TPMS and transmission on supported vehicles, so a brake or airbag warning light stops being a mystery.

The tool is built around a plug that stays in the OBDII port and a wireless link to your phone or tablet. Live data, freeze frames and Mode 6 test results show in the app while you drive, which makes it a natural step up from an engine-only reader for anyone who already carries a phone.

The app also offers how-to videos for common repairs, which helps when you want to fix something yourself rather than hand the car over. It adds technician-verified repair reports matched to your VIN, so a fault code comes with likely causes and confirmed fixes.

There is no subscription, no add-on and no account required, and app updates are free. Support runs 24/7 in North America.

The trade-off is the phone dependency: results live on a screen you supply. Enhanced coverage also varies by make and model, and some 2024+ Nissan and Mazda models are called out as needing a compatibility check.

If you want the strongest multi-system reader for the money, start here. For live data detail, see our roundup of the best OBD2 scanners with live data.

BlueDriver Bluetooth OBD2 ScannerCheck it on Amazon
3

TOPDON AD600S OBD2 Scanner: Best for built-in reset functions

TOPDON AD600S OBD2 Scanner, OBD2 scanners with ABS and SRS diagnostics
8.7/10Our score
  • Four-system diagnostics: engine, transmission, ABS and SRS
  • 9 reset services including ABS and SAS
  • AutoVIN reads the VIN automatically
  • Lifetime free Wi-Fi updates

A standalone tablet-style tool that covers the four main systems and adds resets most rivals here leave out. Good for owners who service their own brakes and steering.

See it on Amazon

Pros

  • Nine reset functions included
  • Large 5-inch screen
  • Lifetime free updates

Cons

  • Battery needs regular recharging
  • Bulkier than a pocket code reader

TOPDON suits the owner who services brakes and steering at home. The AD600S covers engine, transmission, ABS and SRS diagnostics and adds nine reset services, including ABS and steering angle calibration, so a single tool can find a fault and handle the relearn steps that follow a repair.

The 5-inch 1280 x 720 screen runs Android 11 on a 32GB storage setup and shows fault codes and live data without a phone. AutoVIN reads the vehicle's VIN automatically, which saves typing on newer cars.

Lifetime free Wi-Fi updates keep the vehicle list current, and the AD600S supports 70+ brands and 10,000+ models. Nine resets cover oil, BMS, ABS, SAS, EPB, DPF, TPMS, throttle and injector coding, which matters when a brake job or battery swap needs a relearn step.

After 30 days the scanner keeps the original nine resets at no cost. The trade-off is size and power: it is a chunky tablet with a rechargeable battery that needs topping up at least every 7 days, even in storage.

Buy it if a standalone screen and resets matter more than pocket size. Our all-in-one OBD2 scanner roundup covers tools that add even more service functions.

TOPDON AD600S OBD2 ScannerCheck it on Amazon
4

Foxwell NT604 Elite Scanner: Best for pinpointing a warning light

Foxwell NT604 Elite Scanner, OBD2 scanners with ABS and SRS diagnostics
8.5/10Our score
  • Engine, ABS, SRS and transmission diagnostics
  • AutoVIN reads vehicle info quickly
  • Live data stream with playback and print
  • Protective case included

A four-system handheld with a clear screen and a hard case. It reads and clears common ABS and SRS faults but leaves out service resets like oil and brake bleeding.

See it on Amazon

Pros

  • Four-system coverage
  • Live data with playback
  • Comes in a solid protective case

Cons

  • No reset or relearn functions
  • Crash data cannot be cleared

Foxwell suits a buyer who wants a clear handheld that pinpoints warning lights across four systems. The NT604 Elite reads and clears engine, ABS, SRS and transmission codes and shows live data with playback.

It is a 2026 version that works out of the box with no software download first. The 4.3-inch screen and built-in DTC library keep diagnosis simple, and AutoVIN fills in vehicle details on most modern cars.

The kit includes a solid protective case, so the unit is protected in a toolbox or a boot. Lifetime updates come without an extra software fee.

A key limit: it has no reset or relearn functions. For SRS, it reads and clears common codes not caused by a crash, but crash data cannot be erased.

The device diagnoses and clears codes after a repair, but it will not do oil reset, brake bleeding or throttle relearn. Buy it if your goal is to find the cause of an ABS or airbag light and hand the job to a shop.

Skip it if you need service resets built in.

For iPhone users comparing adapters, our best OBD2 scanner for iPhone guide covers the app-based options.

Foxwell NT604 Elite ScannerCheck it on Amazon
5

LAUNCH CRP123 V3.0 Elite OBD2 Scanner: Best for DIYers who want resets

LAUNCH CRP123 V3.0 Elite OBD2 Scanner, OBD2 scanners with ABS and SRS diagnostics
8.4/10Our score
  • Engine, ABS, SRS and transmission diagnostics
  • Three reset functions: oil, SAS and throttle adaptation
  • Live data graphing with record and playback
  • Lifetime free updates over Wi-Fi

Four systems plus three useful resets at a mid-range price. A sensible step up for the home mechanic who also does oil changes and steering work.

See it on Amazon

Pros

  • Three reset functions included
  • Live data graphing
  • Wide brand coverage

Cons

  • Fewer resets than the TOPDON
  • Updates take a while over Wi-Fi

LAUNCH suits the home mechanic who wants four systems plus a few resets in one handheld. The CRP123 V3.0 Elite covers engine, ABS, SRS and transmission, and adds oil reset, steering angle reset and throttle adaptation.

Those three cover the routine jobs most owners take on themselves. Live data graphing with record and playback helps you watch a sensor as it misbehaves, and the tool runs the full set of OBD2 modes, including O2 sensor and EVAP tests.

The lifetime free Wi-Fi updates keep brand coverage broad, and the listed support runs across most mainstream makes from Acura and Audi to Toyota and Volvo. The V3.0 version adds faster Wi-Fi updates, a 32GB card and a Type-C connection.

It is a good middle step between a basic code reader and a pro tablet. You get resets and four systems without the TOPDON's bulk.

The 3.5 to 4-inch screen is smaller and less sharp than the AD600S display, and updates can take a while over Wi-Fi.

Buy it if you do your own oil changes and steering work and want ABS and SRS too. Skip it if you need the widest reset list.

LAUNCH CRP123 V3.0 Elite OBD2 ScannerCheck it on Amazon
6

Foxwell NT301 Code Reader: Best for emissions and smog checks

Foxwell NT301 Code Reader, OBD2 scanners with ABS and SRS diagnostics
8.2/10Our score
  • Reads and clears engine codes with one click
  • I/M readiness hotkey with red, yellow and green LEDs
  • Live data graphing
  • Lifetime free updates

An engine-only reader that makes emissions readiness easy to read. Buy it for smog checks and check engine lights, not for airbag or brake codes.

See it on Amazon

Pros

  • Clear I/M readiness indicator
  • Live data graphing
  • Works on 10,000+ vehicles

Cons

  • No ABS or SRS coverage
  • No reset functions

Foxwell's NT301 suits the buyer whose real worry is a smog check or a check engine light. It reads and clears engine codes with one click and gives a red, yellow or green readiness indicator for emissions testing.

The colors translate to urgent repair, needs diagnosis and good status, so you can judge a test before you drive to the center. Live data graphing covers oxygen sensors, fuel trims and coolant temperature.

The 2.8-inch color screen is readable in daylight, and lifetime free updates keep it current. It supports all OBDII protocols on 1996+ US vehicles, plus many 2000+ European and Asian models and 12V diesel vehicles with OBD2.

There is no battery to charge and no setup step.

The catch is that it cannot scan ABS or SRS at all. It also has no reset functions.

That makes it an engine specialist, not a multi-system tool.

It clears the check engine light only after the underlying fault is fixed, so a code will return if the repair did not take. Buy it as a second scanner for emissions and engine work, or when the budget won't stretch to a four-system unit.

If airbag or brake lights are the reason you're shopping, skip it.

The Innova 5210 review covers another engine-focused option with more repair detail.

Foxwell NT301 Code ReaderCheck it on Amazon
7

Innova SD35 ABS and SRS Scanner: Best for guided repairs

Innova SD35 ABS and SRS Scanner, OBD2 scanners with ABS and SRS diagnostics
7.8/10Our score
  • Reads and clears check engine, ABS, SRS and TPMS codes
  • All-system diagnostics with live data
  • Battery and alternator test
  • Repair guidance in the RepairSolutions2 app

A tablet-style tool that pairs multi-system codes with repair guidance in a free app. Good for owners who want a suggested fix, not just a fault code.

See it on Amazon

Pros

  • ABS, SRS and TPMS coverage
  • Free repair guidance in the app
  • Battery and alternator testing

Cons

  • Depends on the app for repair detail
  • Coverage varies by vehicle

Innova's SD35 suits owners who want repair guidance, not just a code. It reads and clears check engine, ABS, SRS and TPMS codes and runs all-system diagnostics with live data on a tablet-style screen.

Live data includes RPM, fuel trims, temperature and oxygen sensor readings. The free RepairSolutions2 app adds verified fixes from ASE-certified mechanics, with step-by-step guidance, suggested parts and cost estimates.

The app is used by 4 million people, and there is no subscription or hidden fee. It also tests the battery and alternator, which helps rule out a weak battery as the cause of odd warning lights.

TPMS checks and oil light reset add to the service list.

The trade-off is app dependence. The screen is smaller at 3.5 inches, and much of the repair value sits in the app.

Coverage also varies by vehicle, so a common model gets more out of it than a rare one.

Buy it if you want a suggested repair path after reading the code. Skip it if you prefer a big built-in screen and on-device detail.

Innova SD35 ABS and SRS ScannerCheck it on Amazon
8

ANCEL AD310 Code Reader: Best budget engine reader

ANCEL AD310 Code Reader, OBD2 scanners with ABS and SRS diagnostics
7.7/10Our score
  • Reads and clears engine emission codes
  • Reads live data and freeze frame
  • I/M readiness check
  • No battery needed

A sturdy, low-cost engine reader for check engine lights. It does not handle ABS or SRS, so it fits a second-car or beginner toolbox.

See it on Amazon

Pros

  • Simple to use
  • Compact and light
  • Reads live data

Cons

  • Engine codes only
  • No ABS or SRS support

ANCEL's AD310 suits a beginner or a second car. It reads and clears engine emission codes, reads live data and freeze frames, and checks I/M readiness.

It needs no battery, drawing power from the OBDII port. A 48-hour aging test on each unit is meant to cut the chance of component faults in shipping.

The 2.5-foot cable has thick insulation and the body is compact enough to toss in a backpack. Buttons are clearly labeled and the screen is easy to read.

It covers all OBDII protocols on 1996+ US and 2000+ EU and Asian cars.

The unit weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches, so it stores easily. The honest limit is system coverage: engine only.

It cannot read ABS or SRS, and it cannot reset anything.

If a brake or airbag light is on, this tool won't help. It also only reads faults tied to the emissions system.

Buy it for cheap check engine light checks on a car you don't plan to diagnose deeply. Skip it if you need multi-system coverage.

For ABS and SRS work, step up to the BlueDriver or TOPDON.

ANCEL AD310 Code ReaderCheck it on Amazon
9

ANCEL AD410 Enhanced OBD2 Scanner: Best for first-time drivers

ANCEL AD410 Enhanced OBD2 Scanner, OBD2 scanners with ABS and SRS diagnostics
7.6/10Our score
  • 42,000+ built-in DTC lookups
  • Reads live data and I/M readiness
  • Full OBD2 diagnostic modes
  • No app or battery needed

A beginner-friendly engine reader with a big code library. It explains the check engine light clearly but cannot touch airbag or brake modules.

See it on Amazon

Pros

  • Large built-in code library
  • Simple plug-and-play setup
  • Clear color screen

Cons

  • Engine codes only
  • No ABS or SRS coverage

ANCEL's AD410 suits a first-time driver or a household that just wants to understand a warning light. It reads and clears engine codes and shows definitions from 42,000+ built-in DTC lookups.

That library reduces guesswork when a code appears and you have no reference to hand. Full OBD2 modes cover live data, freeze frame, I/M readiness, O2 sensor and EVAP tests.

The 2.4-inch color screen and simple menu keep it beginner-friendly.

It runs without a battery, app or Bluetooth. Free software updates keep the code database current, and ANCEL support helps with compatibility and setup questions.

Its I/M readiness function also helps you avoid a wasted trip before a smog test.

The limit is the same as its sibling: engine and emissions only. It does not read ABS or SRS, and it has no reset functions.

Some makes, including Fiat and certain French and Russian cars, may not be compatible at all.

That makes it a good first reader, not a brake or airbag tool. Buy it if you want a clear, low-cost reader that explains the check engine light.

Skip it when your warning light is the ABS or airbag light.

ANCEL AD410 Enhanced OBD2 ScannerCheck it on Amazon

How these scanners compare

The main split is system coverage. Five tools here read ABS and SRS, and four read engine codes only.

Decide that first, then compare screens, resets and app needs.

A five-system scanner like BlueDriver covers more modules but needs a phone. A four-system handheld like the TOPDON keeps everything on one screen and adds resets.

The engine-only readers are cheaper and simpler, but they stop at the engine and emissions systems.

ProductBest forSystemsScreenPowerOur score
MOTOPOWER MP69033 Car OBD2 Scanner Code Readercheck engine work onlyEngine and OBD2 only2.8 in LCDFrom vehicle OBDII port9.7
BlueDriver Bluetooth OBD2 Scanneroverall for ABS and SRSEnhanced, includes ABS and SRS9.0
TOPDON AD600S OBD2 Scannerbuilt-in reset functionsEngine, transmission, ABS, SRS5 in, 1280 x 7208.7
Foxwell NT604 Elite Scannerpinpointing a warning lightEngine, ABS, SRS, transmission4.3 in8.5
LAUNCH CRP123 V3.0 Elite OBD2 ScannerDIYers who want resetsEngine, ABS, SRS, transmission4 in8.4
Foxwell NT301 Code Readeremissions and smog checksEngine and OBD2 only2.8 in color8.2
Innova SD35 ABS and SRS Scannerguided repairsEngine, ABS, SRS, TPMS3.5 in7.8
ANCEL AD310 Code Readerbudget engine readerEngine and OBD2 only2.4 inFrom vehicle OBDII port7.7
ANCEL AD410 Enhanced OBD2 Scannerfirst-time driversEngine and OBD2 only2.4 in color7.6

How we compared these scanners

We compared the stated system coverage, screen type and size, reset functions, update policy and how each tool shows results. We did not perform physical testing of these units.

The score weighs specs and features against what a buyer shopping for ABS and SRS coverage actually needs. The tools that read and clear ABS and SRS codes scored higher, because that coverage is the whole point of the search.

Engine-only readers still make the list because many shoppers start there and only later discover the brake and airbag modules need a different tool. We also weighed how results reach you: a phone app adds detail and repair guidance but needs a device, while a handheld gives you a screen and buttons in one unit.

Neither is better in every case, so the list covers both.

We also noted the update terms, since a free lifetime update policy keeps a tool useful as newer cars appear. Finally, we looked at the resets each tool includes, because a scanner that can read a brake fault but not handle the follow-up relearn leaves part of the job undone.

Does a cheap code reader read ABS and SRS?

No. Basic engine code readers cannot reach the ABS or airbag modules.

They read the engine and emissions systems only.

The AD310 and AD410 are honest about this, and the MOTOPOWER and NT301 state the same limit. Even a reader that advertises universal OBD2 support only covers the engine side.

A cheap reader still has a place. Use one for routine check engine light work and leave brake or airbag diagnosis to a four-system tool.

The engine-only picks here are good value for that job.

The moment a brake or airbag light shows, move up to a tool that lists ABS and SRS in its stated coverage.

What should you check before buying an ABS and SRS scanner?

Check the vehicle coverage first. Enhanced ABS and SRS coverage varies by make, model and year, even on tools that advertise multi-system support.

BlueDriver lists support for GM, Ford, Stellantis, Toyota, Honda, Nissan and others, and several makers ask you to confirm with a compatibility chart. Then look at what else the tool does.

Resets like oil, SAS and EPB matter if you service the car yourself.

Live data matters if you want to watch sensors while driving. The TOPDON and LAUNCH are the strongest on resets here.

The Foxwell NT604 reads well but has none.

Finally, decide on the screen. A handheld keeps everything in one unit.

A phone adapter adds app detail and repair guidance but needs a charged phone. Think about where you scan too: a unit that stays plugged in while you drive gives live data on the move.

Handheld or phone adapter for ABS and SRS?

A handheld suits you if you want a screen and buttons without a phone, and if you like built-in resets. The TOPDON AD600S and LAUNCH CRP123 are the handheld picks here with resets.

The Foxwell NT604 gives you four systems and a hard case without reset functions. A handheld also works well in a garage with no phone signal or a weak battery.

A phone adapter suits you if you carry your phone anyway and want deeper repair guidance. BlueDriver and the Innova SD35 both lean on apps for detail.

BlueDriver adds VIN-matched repair reports and live data; the Innova adds an app with suggested parts.

For iPhone-specific options, see our best OBD2 scanner for iPhone guide.

Which systems does each tool actually read?

ABS and SRS coverage is the headline, but the tools differ on what else they reach. The list below covers both the module coverage and the resets, since those decide what you can finish yourself after a repair.

Tools that read engine, ABS and SRS

BlueDriver, the TOPDON AD600S, the Foxwell NT604 Elite, the LAUNCH CRP123 V3.0 and the Innova SD35 all read ABS and SRS codes. Several also add transmission or TPMS.

BlueDriver goes widest with ABS, SRS, TPMS and transmission on supported vehicles. The Innova SD35 covers engine, ABS, SRS and TPMS.

TOPDON and LAUNCH cover engine, transmission, ABS and SRS.

On resets, TOPDON offers the most with nine, LAUNCH adds three, and the Innova covers TPMS checks and oil reset. The Foxwell NT604 reads codes but does no resets.

Tools that read engine codes only

The MOTOPOWER MP69033, Foxwell NT301, ANCEL AD310 and ANCEL AD410 are engine-only. They handle check engine lights, emissions readiness and live engine data.

None of them read ABS or SRS.

Buy one of these if you only need engine work. Buy a multi-system tool if a brake or airbag light is your reason for shopping.

The MOTOPOWER has the simplest layout and shortcut buttons for VIN and fault codes. The NT301 adds the clearest readiness display.

The two ANCEL readers lean on a large code library and a low price.

Which scanner fits your car and budget?

The best fit depends on your car's coverage and how much diagnosis you plan to do. Start with system coverage, then match the screen and resets to your habits.

If you want the most coverage for the least hassle, a phone adapter is the easy answer. If you want a standalone tool with resets, choose a handheld.

Owners who mostly do check engine light work can save with an engine-only reader and put the difference toward repairs.

Verdict: which OBD2 scanner with ABS and SRS should you buy?

For most people, the best OBD2 scanner with ABS and SRS is the BlueDriver Bluetooth OBD2 Scanner. It reads and clears brake and airbag codes across a wide range of vehicles and adds live data and repair guidance, all without a subscription.

Pick the TOPDON AD600S if you want a big standalone screen and nine reset functions. Choose the Foxwell NT604 Elite or LAUNCH CRP123 for four systems at a lower price.

Buy an engine-only reader only when a brake or airbag light isn't your concern.

If you are still comparing features, our all-in-one OBD2 scanner roundup covers tools with more service functions and bigger screens.

Our top 3 picks at a glance

  1. 1 MOTOPOWER MP69033 Car OBD2 Scanner Code Reader
    Best for check engine work only

    MOTOPOWER MP69033 Car OBD2 Scanner Code Reader

    9.7/10 our score

    See it on Amazon
  2. 2 BlueDriver Bluetooth OBD2 Scanner
    Best overall for ABS and SRS

    BlueDriver Bluetooth OBD2 Scanner

    9.0/10 our score

    See it on Amazon
  3. 3 TOPDON AD600S OBD2 Scanner
    Best for built-in reset functions

    TOPDON AD600S OBD2 Scanner

    8.7/10 our score

    See it on Amazon

Frequently asked questions

What does an OBD2 scanner with ABS and SRS actually do?

It reads and clears fault codes from the anti-lock brake and airbag control modules, not just the engine. That tells you why the ABS or airbag light is on and lets you clear the code after the repair.

Do I need a scanner with ABS and SRS if my car has no warning lights?

Not urgently. An engine-only code reader is enough for routine check engine light work.

Buy ABS and SRS coverage when a brake or airbag light appears or you plan to keep the car long term.

Is a phone app scanner as good as a handheld for ABS and SRS?

For many owners, yes. A phone app scanner like BlueDriver reads enhanced ABS and SRS codes on supported vehicles and adds live data.

A handheld wins when you want a screen and buttons without a phone.

Can a scanner turn off an ABS or airbag light for good?

It can clear the code only after the fault is repaired. If the problem remains, the light comes back.

Clear the code to confirm a fix, not to hide a real brake or airbag issue.

Why do some cheap scanners say they support all systems but cannot read airbags?

Engine-only readers often market themselves as universal OBD2 tools. ABS and SRS codes sit in separate modules that basic readers cannot reach.

Check the stated system coverage before buying.