On this page
Quick specs
| Screen | 7-inch touchscreen |
|---|---|
| Memory | 2GB RAM / 32GB storage |
| Brand coverage | 140+ brands, most 1996 and newer vehicles |
| Bi-directional tests | 3,000+ (brand claim) |
| Service resets | 28 |
| Protocols | KWP2000, CAN, ISO 9141-2, UDS, SAE J1850, CAN-FD |
| Connectivity | 2.4GHz/5GHz Wi-Fi, USB |
| Warranty | 1 year, 30-day returns |
How we researched
This review is based on THINKCAR THINKSCAN 672's official product page, its published specifications and pricing, and a comparison with leading alternatives in automotive. We have not used this product ourselves; scores reflect how it compares on paper.What the THINKSCAN 672 is
The THINKSCAN 672 is a handheld, tablet-style diagnostic scanner from THINKCAR. It plugs into a vehicle's OBD2 port through a data cable and runs on its own battery, with a 7-inch touchscreen and a physical power button.
It sits above basic code readers. Beyond reading and clearing engine codes, it scans all of a vehicle's modules, sends commands to components, and runs service resets. THINKCAR markets it as a 2024 upgrade with a reworked interface.
The main selling point is that THINKCAR says software updates are free for life, with no subscription. Many scanners in this class charge yearly fees after the first year.
Diagnostics and bi-directional control
THINKCAR says the 672 covers engine, powertrain, chassis, body, A/C and other electrical modules on 140+ brands. It reads and clears codes, shows ECU info and live data, and includes standard OBD2 functions like freeze frame, I/M readiness, O2 sensor and Evap tests.
The bi-directional side is where it earns its price. The brand claims 3,000+ active tests, such as purge solenoid, fuel injector, cooling fan, A/C clutch relay, ABS pump and headlamp tests. It also claims a 300% efficiency improvement, which is a marketing figure, not something we can verify.
CAN-FD support matters if you work on newer GM vehicles. THINKCAR lists 2020 to 2024 GM models like the Tahoe, Suburban, Yukon and Escalade. Reports can be saved, exported, printed or shared.
Resets, key matching and coverage caveats
The 28 listed resets cover common jobs: oil maintenance, TPMS, battery matching, brake, steering angle, electronic throttle relearn, ABS bleeding, DPF regen, injector coding, and more. THINKCAR notes that supported functions vary by vehicle and software version.
Immobilizer key matching can add, delete and reprogram keys, but THINKCAR states it is not universally compatible and some models require a PIN code. Treat it as a bonus, not a reason to buy.
One owner review on the page makes a fair point: you may not know whether every function works on your vehicle until you try it. Use THINKCAR's coverage checker or contact support before ordering if you need a specific function.
Hardware, updates and support
Updates run over 2.4GHz or 5GHz Wi-Fi, so you can update at home without a computer. You can update or delete individual brand software to save storage. Owners on the page say a full update takes a while and recommend keeping the unit plugged in.
The USB port accepts optional modules THINKCAR sells separately, including an oscilloscope box, battery tester, video scope, printer and TPMS tool. That gives the tool room to grow.
Thinkcar also builds in an instant messaging feature for online support, plus QR-code access from a phone. Owner reviews mention a hard carrying case, rubberized corners, a kickstand and international plug adapters in the box.
Price and value
At the time of writing, THINKCAR lists the 672 at $354.95, down from a regular price of $458.95. Prices change, so check before buying.
For that money you get bi-directional control, full-system scans and 28 resets with no stated update fees. Competing tools with similar features often charge for updates after a year, which can add up over time.
The tradeoff is depth. Higher-priced professional tools generally offer broader coding and reset support across more makes. For most home mechanics, the 672 covers the jobs that come up regularly.
Who it suits
The 672 fits experienced DIYers who already do their own brakes, batteries and sensor work and want to confirm a diagnosis before buying parts. It also suits small shops that want a capable second tool without subscriptions.
It is more than a beginner needs. If you just want to see why the check-engine light is on, a basic code reader costs far less.
If you rely on key programming or advanced coding for a particular make, confirm support first. Those functions are where coverage is most likely to fall short.
How it scored
Alternatives
| Product | Best for | |
|---|---|---|
| THINKCAR THINKSCAN 672This review | Skilled DIY mechanics and small shops that want bi-directional tests and service resets without paying yearly update fees. | Check price |
| Autel MaxiCOM MK808S | Autel ecosystem fans wanting broad coverage | |
| Launch X431 CRP919X | Shops wanting deeper coding features | |
| Topdon Phoenix Lite 2 | Users wanting a larger pro-style tablet |
FAQ
Does the THINKSCAN 672 require a subscription?
THINKCAR says the 672 comes with free lifetime software updates and no subscription fees. Optional hardware modules are sold separately.
Is the THINKSCAN 672 bi-directional?
Yes. THINKCAR says it offers 3,000+ bi-directional and active tests, such as fuel injector, cooling fan, purge solenoid and ABS pump tests. Availability depends on the vehicle.
What cars does the THINKSCAN 672 work with?
THINKCAR says it works with most cars from 1996 or later across 140+ brands, and supports CAN-FD for 2020 to 2024 GM vehicles. Specific functions vary, so check the coverage tool for your vehicle.
Can the THINKSCAN 672 program car keys?
It supports adding, deleting and reprogramming keys on some vehicles. THINKCAR says this is not universally compatible and some models need a PIN code, so confirm support before relying on it.
Does the THINKSCAN 672 need to be plugged into the car to turn on?
No. It has a rechargeable battery and powers on independently, so you can update it over Wi-Fi at home. It connects to the car through the included OBD2 data cable.
What is the warranty on the THINKSCAN 672?
THINKCAR lists a 1-year warranty, 30-day returns and lifetime support. Units ship from a US warehouse, usually within one business day according to the page.
Final verdict
The THINKSCAN 672 is a solid pick for capable DIYers and small shops who want bi-directional tests and common resets without yearly fees. Its value at the sale price is the main draw. Just verify coverage for your specific vehicle and functions, especially key programming, before you buy.
