Choosing the right scan tool can feel overwhelming — especially with all the different vehicles, systems, and options out there. This guide is here to make it simple. Whether you just want to clear a check engine light or you’re after full system diagnostics across multiple cars, we’ll help you find the right tool for the job.
Start With How You’ll Use It
Are you scanning your own vehicles at home?
Or are you a workshop or serious DIYer needing broader coverage and more functions?
Think about:
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Do you only want to read and clear engine fault codes?
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Or do you want access to systems like ABS, Airbags, Transmission, and Service Functions?
Option 1: I Just Want to Read/Clear Engine Fault Codes
Step 1: Is Your Car OBD2 Compliant?
If your car is OBD2 compliant, you can use any tool from our OBD2 Tools range.
Here’s a general guide for OBD2 compliance in NZ:
American Vehicles
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1996 onwards
European Vehicles
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Petrol: 2001 onwards
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Diesel: 2004 onwards
Australian Vehicles
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Holden: From 2006 (Commodore VZ onwards)
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Ford: From 2006 (Falcon BA onwards, Ranger from 2007)
Japanese Vehicles
These vary by brand/model. Most petrol vehicles are fully OBD2 by 2008.
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Honda: 2001
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Mazda: 2001
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Toyota: 2006 (Diesel: 2008)
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Nissan: 2007
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Mitsubishi: 2007
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Subaru: 2003–2008 (engine only before 2008)
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Suzuki: 2006
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Hyundai/Kia: 2001–2006+
Still unsure? View our full OBD2 compatibility chart or contact us.
Step 2: Choose Your Type of Tool
Handheld Scanners
Standalone tools that plug directly into your vehicle and don’t require a phone or app.
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Basic: [UDIAG CR206] – Reads & clears engine codes
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Advanced: [UDIAG CR800] – Adds live sensor data & emissions info
Bluetooth/Smartphone Tools
Connect to your Android device and work with apps like Torque.
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[Stahlcar ST400 Bluetooth] – Reliable, easy to use
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[ELM327 Basic Tool] – Entry-level option
For Apple Devices (iPhone/iPad)
iOS doesn’t support standard Bluetooth OBD2 devices — use WiFi-based tools.
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[ELM327 WiFi] – Pairs with iOS apps like OBD Car Doctor
Option 2: I Want More Than Just Engine Codes OR My Car Isn’t OBD2
If your car isn’t OBD2 compliant or you want to scan other systems (ABS, SRS, transmission, etc.), you’ll need a more advanced tool.
We recommend looking at:
For deeper diagnostics on a specific brand — ideal for enthusiasts or home users working on one make.
Cover a wide range of vehicles and access full system diagnostics — perfect for workshops or mixed garages.
Option 3: I Have a Mix of Cars or Need All Systems Access
If you need broad compatibility and access to all major systems (on both OBD2 and some OBD1 vehicles), we recommend:
These tools offer extensive coverage across multiple makes and include functions like service resets, live data, and more — without the high cost of dealer-level equipment. Easy to use, backed by Stahlcar warranty and support.
Need Help Choosing?
We’re here to make diagnostics simple. If you're still not sure what suits your vehicle or budget, get in touch and we’ll point you in the right direction.