Your Toyota is known for its reliability, but even a Toyota sometimes gets a warning light. And at the garage, you quickly pay an hourly rate just to have it checked. A shame, because you can easily read your Toyota yourself. You immediately see the error code and know if it’s serious.
The device you need depends on what you want: just read data, adjust some functions, or perform a full diagnosis. Below are the best choices per situation.
What do you want to do with your Toyota?
Read and clear error codes. Know why a warning light is on and clear the message. An affordable scanner is enough, no technical knowledge needed.
Keep track of maintenance yourself. Reset service reminders after a service, or monitor the hybrid battery and sensor values.
Full diagnosis. Read all systems (engine, ABS, airbag) and test components. For this, choose a professional handheld device.
For most Toyota drivers: an app scanner
Do you mainly want to read error codes and check some sensor values? Then an app scanner like the OBDeleven 3 is a handy choice. You plug the device into the OBD2 port and control everything via your phone. You read the error codes with explanations, and for many Toyota models, you can also run diagnostics and adjust certain functions.
The OBD2 port of your Toyota is located on the left under the dashboard. You’ll find it there on almost every Toyota from 2001 onwards.
What can you read from your Toyota?
A good scanner does more than just show an error code. Toyota drivers can read this themselves:
Error codes in all systems. Not just the engine, but also ABS, airbag, and exhaust system, with explanations for each code.
Live sensor values. View coolant temperature, RPM, and battery voltage live while driving.
Check hybrid battery. For many Toyota hybrids, you can read the condition of the battery pack and cells, useful if in doubt.
Service interval reset. Reset the maintenance reminder yourself after a service, without needing to go to the garage.
Our top 3 for your Toyota
You don’t need an expensive scanner. These three together cover almost every need, from simple reading to full diagnosis:
View the Topdon CarPal → 
View the OBDeleven 3 → 
View the Launch CRP919X →
The Topdon CarPal (around €40) is the cheapest, for reading and clearing fault codes only. The OBDeleven 3 (around €77) is a nice all-round app. The Launch CRP919X (around €440) reads all systems, including extensive hybrid diagnostics, without a laptop.
Frequently Asked Questions
Does an OBD2 scanner work on my Toyota?
Yes. On almost every Toyota from 2001 (gasoline) or 2004 (diesel), as they have a mandatory OBD2 port. For extensive hybrid diagnostics, a brand-wide handheld device like the Launch CRP919X is the most complete.
Can I read my hybrid battery?
With many Toyota hybrids, you can read the condition of the battery pack and individual cells with a good scanner. This is useful if you have doubts about the condition or when buying a used hybrid.
Can I code functions on a Toyota?
Limited. Toyota allows less coding than, for example, VAG or BMW. Some adjustments are possible, but Toyota focuses on reading and diagnostics.
Do I need an expensive scanner?
No. For reading fault codes, a cheap scanner is enough. If you want a full diagnosis or extensive hybrid info, a handheld device is worth it.
In short
For your Toyota, the choice depends on what you want. For reading data, an affordable scanner like the Topdon CarPal or the OBDeleven 3 is sufficient. If you want all systems and extensive hybrid diagnostics, a handheld device like the Launch CRP919X is the best choice. View all options in our diagnostic equipment collection or read about the features you can activate on your Toyota with OBDeleven.