The 6 Best OBD2 Scanners of 2026
Find out why your check engine light is on before you pay a shop.
An OBD2 scanner plugs in under your dashboard and reads the codes behind a check engine light, so you know whether it's a loose gas cap or something serious. We compared six popular scanners from Innova, BlueDriver and FIXD.
Scores at a glance
Scored out of 100 on value 35%, diagnostics 30%, ease of use 20%, extras 15%. How we score
Innova CarScan Mobile 1000 Bluetooth OBD2 Scanner
Type: Bluetooth dongle + phone app | App: RepairSolutions2
Turns your phone into a scan tool. Plug it in, open the RepairSolutions2 app, and see codes along with likely fixes. For most drivers this is all you need.
Pros
- Uses your phone
- Suggests fixes
- $20 off
Cons
- Needs your phone every time
Innova SD35 All System OBD2 Tablet
Type: tablet | Coverage: all systems
A standalone tablet that reads all systems, not just the engine. Lives in the glovebox, no phone needed.
Pros
- All-system scan
- No phone needed
Cons
- No bidirectional tests
Innova SDS43 Bidirectional OBD2 Tablet
Type: bidirectional tablet | For: advanced DIYers and techs
Bidirectional means it can command parts to run, like cycling a fan or pump, to confirm what's broken. That's a shop-level feature for serious DIYers.
Pros
- Bidirectional tests
- Fast boot
Cons
- Overkill for code reading
BlueDriver Bluetooth Pro OBD2 Scanner
Type: Bluetooth + phone app | Reads: engine, ABS, SRS, TPMS | Fees: no subscription
The most-recommended Bluetooth scanner for DIYers. It reads ABS, airbag and TPMS codes from your phone with no subscription.
Pros
- ABS, airbag, TPMS
- No subscription
- Great repair reports
Cons
- Costs more than the CarScan Mobile
Innova SD29 Airbag (SRS) OBD2 Tablet
Type: tablet | Reads: engine and airbag (SRS) codes
If your airbag light is on, a basic code reader won't see it. The SD29 reads SRS codes for $99.99.
Pros
- Reads airbag codes
- $99.99
Cons
- Fewer systems than the SD35
FIXD Bluetooth OBD2 Scanner
Type: Bluetooth + phone app | Reads: check engine codes in plain English
FIXD translates codes into plain English and tracks maintenance. The extras need a paid membership.
Pros
- Very easy
- Maintenance reminders
Cons
- Best features need a subscription
Side-by-side
| Scanner | Price | Type | Best for |
|---|---|---|---|
| CarScan Mobile 1000 | $99.99 | Bluetooth | Most drivers |
| SD35 | $149.99 | Tablet | All systems |
| SDS43 | $279.99 | Bidirectional tablet | DIY repairs |
| SD29 | $99.99 | Tablet | Airbag lights |
| BlueDriver Pro | See Amazon | Bluetooth | ABS/SRS, no fees |
| FIXD | See Amazon | Bluetooth | Beginners |
What to look for
Just the check engine light? A Bluetooth dongle like the CarScan Mobile is plenty.
ABS, airbag, transmission? Get an all-system tool.
Doing your own repairs? Bidirectional controls save time confirming a diagnosis.
Bottom line
For most drivers, the Innova CarScan Mobile 1000 at $99.99 is the pick. Want a dedicated tool in the glovebox? Get the SD35.
Claim $20 off the Innova CarScan Mobile