Basic code readers can’t touch these systems. This guide covers the scanners that actually read and clear ABS, airbag, and tyre pressure warning lights — at every budget level.
Updated regularly — picks reflect current availability & pricing
// Why Your Current Scanner Can’t Read These Lights
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ABS Warning Light
Anti-lock Braking System faults. Wheel speed sensors, hydraulic pump issues, control module failures. Safety-critical — affects braking under hard stops.
Separate module from engine · Requires dedicated ABS scanner access
⚠️
SRS / Airbag Light
Supplemental Restraint System — airbags, seatbelt pretensioners, crash sensors, SRS module. A lit airbag light means the system may not deploy correctly in a crash.
Cannot be cleared by basic OBD-II scanners · Crash data cannot be cleared at all
🔵
TPMS Warning Light
Tyre Pressure Monitoring System — individual sensor data, sensor IDs, battery status. Comes on after tyre rotation, sensor replacement, or when a sensor fails or loses pressure.
Relearn required after tyre work · Dedicated TPMS tool or scanner needed
🟣
Transmission Warning
TCM (Transmission Control Module) faults — slip codes, solenoid issues, temperature warnings, gear ratio faults. Often appears with a check engine light.
Some overlap with engine codes · Requires multi-system scanner
Standard OBD-II only covers the engine (powertrain) module. A $30 code reader plugged into the same port will connect and show “no codes found” on an ABS or airbag fault because it literally cannot communicate with those modules. You need a scanner that specifically supports those systems for your vehicle.
// Quick Verdict — Jump to Your Pick
Top Picks by Use Case
Choose based on what you need — full reviews below each.
The NT604 Elite is the most cost-effective starting point for anyone whose ABS, airbag, or transmission warning light is on. It reads and clears codes across all four key systems — Engine, ABS, SRS, and Transmission — covering the warning lights that send most drivers to the dealership.
AUTOVIN automatically identifies your vehicle from the VIN, covers 60+ makes worldwide, and comes ready to use out of the box with no software download required. Live data graphing and freeze frame are included.
Important limitations: the NT604 Elite reads and clears codes only — it does not perform service resets (no EPB, ABS bleed, oil reset) or bidirectional active tests. If you need to bleed brakes or run active tests, look at the NT630 Plus below.
Price~$70
ABS codesRead & Clear
SRS/Airbag codesRead & Clear
Transmission codesRead & Clear
TPMSNo
ABS bleedingNo
BidirectionalNo
UpdatesWiFi OTA
SubscriptionNone
// Pros
Covers all four key warning light systems at ~$70
AUTOVIN — fast vehicle identification
60+ vehicle makes worldwide
Out of the box — no software download
WiFi updates, no subscription
// Cons
No ABS bleeding or service resets
No bidirectional active tests
No TPMS access
Coverage varies by vehicle — verify before buying
Verdict: The right first step if your ABS, airbag, or transmission light is on and you want to know what the code says without spending $150 at a dealership. It reads and clears. If you need to go further — active tests, ABS bleeding, service resets — step up to the NT630 Plus.
~$90ABS BidirectionalABS Auto BleedNo Subscription
The NT630 Plus is the go-to tool for anyone doing brake system work. It goes beyond just reading ABS codes — it performs bidirectional ABS control, meaning it can actually activate the ABS pump and cycle valves, which is how you perform electronic brake bleeding after a brake fluid change or caliper replacement.
If you’ve ever replaced brake calipers and ended up with a soft, spongy pedal, this is the tool that fixes it without a second person pumping the pedal. It performs automatic ABS bleeding on 60+ vehicle makes — a function typically locked behind dealer scan tools.
It also performs SAS (Steering Angle Sensor) calibration after a wheel alignment or steering component replacement — another function most budget scanners can’t touch. Full OBD-II engine functions and live data are included alongside ABS and SRS system access.
Price~$90
ABS codesRead & Clear
ABS bidirectionalActive tests
ABS auto bleeding60+ makes
SRS/Airbag codesRead only
SAS calibrationYes
TPMSNo
SubscriptionNone
// Pros
ABS bidirectional control — cycle pump and valves remotely
Automatic ABS bleeding — eliminates spongy pedal after brake work
SAS calibration after alignment or steering repairs
Oil reset and EPB reset included
Lifetime free updates — no subscription
// Cons
Can read SRS codes but cannot clear crash-related airbag codes
No TPMS access
No transmission system access
ABS bleeding availability varies by vehicle — verify first
Verdict: The best specialist tool for anyone who does their own brake work. The ABS bleeding feature alone justifies the price — it’s a function that used to require a $300+ scanner or a shop visit. If you replace brake components regularly, this pays for itself on the first use.
The Autel ML629 covers Engine, ABS, SRS, and Transmission — the same four systems as the FOXWELL NT604 Elite — but backed by Autel’s vehicle coverage database, which is one of the broadest in the industry at this price point. AutoVIN, live data graphing, and free lifetime updates are all included.
Important compatibility note: ABS and SRS system diagnostics on the ML629 primarily support 2002–2016/2017 model years. If your vehicle is a 2018 or newer model, verify compatibility with Autel before purchasing. OBD-II engine functions work on all 1996+ vehicles as standard.
A solid alternative to the FOXWELL NT604 Elite if you have a strong preference for the Autel brand or your vehicle responds better to Autel’s protocol implementation.
Verdict: A strong option if you prefer Autel’s ecosystem or find it at a competitive price. If your vehicle falls within the 2002–2016 range, this delivers solid 4-system coverage. For 2017+ vehicles, check compatibility with Autel first or choose the FOXWELL NT604 Elite which handles more recent models more reliably.
⚡ Best All-in-One — TPMS + Full System + Bidirectional
Autel MaxiCOM MK808S-TS
~$350BidirectionalTPMS Programming28+ Resets
The MK808S-TS is where everything comes together in one tool: full system diagnostics + TPMS programming + bidirectional controls + 28 service resets. It’s the scanner you buy if you’re tired of having separate tools for each warning light and want one that handles everything.
The TPMS functionality is particularly notable — it can program Autel MX-Sensors, activate and relearn OE sensors via OBD, and perform all three relearn methods (OBD, automatic, stationary). This is the level of TPMS capability you normally need a separate dedicated tool for.
Bidirectional active tests, Android 11 tablet interface, FCA AutoAuth for Jeep/Dodge/Chrysler post-2017, and two years of free updates are all included. Updates after year two run ~$149/year — factor that into the total cost.
Price~$350
ABS / SRSFull system
TPMS programmingAutel MX-Sensor
TPMS relearn methodsOBD + Auto + Static
BidirectionalActive tests
Service resets28+
Updates2yr free, then ~$149/yr
InterfaceAndroid 11 tablet
// Pros
One tool covers everything — ABS, SRS, TPMS, bidirectional, service resets
TPMS programming with 3 relearn methods — replaces a dedicated TPMS tool
Overkill and expensive if you only need to read ABS/SRS codes
Verdict: The right choice if you want to stop buying separate tools and do everything from one screen. The combination of full system diagnostics, TPMS programming, bidirectional, and 28+ service resets makes it the most complete DIY-level scanner available under $400. Factor in the post-year-two update cost when comparing with alternatives.
🔵 TPMS-Only Tool — Tyre Rotation & Sensor Replacement
Autel MaxiTPMS TS508WF
~$80TPMS OnlyFree Lifetime UpdatesWiFi Updates
If your only problem is a TPMS warning light — typically after a tyre rotation, seasonal tyre change, or a sensor replacement — you don’t need a full multi-system scanner. The TS508WF is the right dedicated tool for this specific job.
It activates OE and aftermarket TPMS sensors, reads sensor IDs, tyre pressure, temperature, and battery status, and performs all three relearn methods: OBD relearn, automatic relearn, and stationary relearn. WiFi updates are included with lifetime free coverage — no PC required.
Programming note: the TS508WF can only program Autel MX-Sensors (not other brand sensors). If you’re just relearning existing OE sensors after a rotation, this limitation doesn’t apply. If you’re replacing a failed sensor with a new one, you’ll need an Autel MX-Sensor to program with this tool.
Price~$80
TPMS relearnOBD + Auto + Static
Sensor activation99% sensors
Sensor programmingAutel MX only
TPMS diagnosticsRead/Clear DTCs
Vehicle coverageUS 1996+, EU 2006+
UpdatesFree via WiFi
ABS / SRS / EngineNo — TPMS only
// Pros
Purpose-built for TPMS — covers every scenario
OBD relearn — most reliable method for most vehicles
WiFi updates for life — no PC needed, no annual fee
Activates 99% of OE and aftermarket sensors
Quick mode speeds up routine tyre shop work
// Cons
TPMS only — cannot read ABS, SRS, or engine codes
Sensor programming limited to Autel MX-Sensors
If you also need ABS/SRS, buy the MK808S-TS instead
Verdict: The right buy if your only issue is a TPMS warning light and you don’t need ABS or airbag diagnostics. Dedicated TPMS tools do the job better and faster than a multi-system scanner trying to also do TPMS on the side. If you need both TPMS and ABS/SRS, go straight to the Autel MK808S-TS above.
Safety note on airbag (SRS) codes: Airbag crash data from an actual collision cannot be cleared by any aftermarket scanner — it requires either dealer tools or physical module replacement. If your airbag light came on after a collision, even a minor one, the system needs professional inspection before driving the vehicle. Do not clear codes and ignore an airbag warning light.
🤖
Not Sure What Your Warning Light Means?
Describe the light and any symptoms to our free AI Diagnostic tool — it will identify the likely fault, which system it affects, and what level of scanner you actually need to diagnose it properly.
Standard OBD-II protocol only mandates access to the powertrain (engine) control module. ABS, SRS/airbag, and TPMS are separate electronic control modules that require enhanced diagnostics — the scanner needs to know how to communicate with each module individually for your specific vehicle. A basic $30 code reader will connect to the OBD-II port but simply cannot communicate with ABS or airbag modules. You need a scanner that specifically lists ABS and SRS support for your vehicle make and year.
You can clear most SRS fault codes yourself once the underlying fault is repaired — a faulty clock spring, damaged seat belt pretensioner, or loose connector can all throw SRS codes that clear after repair. However, airbag crash data from an actual collision cannot be cleared by any aftermarket scanner. If the airbag light came on after a crash, the module stores permanent crash data that requires dealer tools or physical module replacement. Never clear SRS codes without identifying and fixing the actual fault first.
TPMS lights come on for several reasons: a tyre is low on pressure (check first — inflate to spec and see if it goes out), a sensor has a low battery or failed, a tyre rotation was performed without relearning the sensor positions, or a new sensor was installed without programming. If inflating the tyres doesn’t clear it, you need a TPMS relearn tool (like the Autel TS508WF) or a scanner with TPMS access (like the Autel MK808S-TS) to reset the system.
ABS bleeding cycles the ABS pump module electronically to push air bubbles out of the brake lines and ABS modulator. You need it after replacing brake calipers, brake lines, or the ABS modulator, or any time air enters the brake system. Traditional manual bleeding (two-person pump method) often can’t fully purge air from inside the ABS module itself — which is why the pedal feels soft after brake work even after a thorough manual bleed. The FOXWELL NT630 Plus performs automatic ABS bleeding on 60+ vehicle makes. Availability varies by vehicle — check FOXWELL’s compatibility list before buying.
All five tools work on any 1996+ US vehicle for standard OBD-II engine codes. For ABS, SRS, and TPMS access, compatibility is vehicle-specific and varies by make, model, and year. Always verify your vehicle is supported for the specific function you need before purchasing. The Autel ML629 ABS/SRS coverage is primarily 2002–2016/17. The FOXWELL NT604 Elite and NT630 Plus have broader coverage that extends to more recent models. For 2020+ vehicles from GM, Volvo, BMW, or Stellantis, verify CAN FD protocol support before buying any scanner at this price tier.
If you just need to read and clear ABS or airbag codes — identify what the light is about and clear it after the repair — the FOXWELL NT604 Elite at ~$70 is enough. The MK808S-TS at ~$350 makes sense if you need TPMS programming, bidirectional active tests, or the full suite of 28+ service resets (oil reset, EPB, ABS bleed, injector coding, etc.) in a single tablet tool. Don’t buy the MK808S-TS to read an ABS code once — buy it if you’re doing serious regular DIY work on multiple vehicles.
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