KlaroOBD2 adapter · Wi-Fi or Bluetooth
Your check engine light,
explained
Plug an OBD2 adapter into your car's diagnostic socket and Klaro reads what the control unit recorded. Fault codes stop being obscure references and become readable sentences, with how urgent they are.
Reading codes and live data are free. Adapter sold separately.
Searching
Read the codes
Stored and pending faults, explained in plain words.
Clear the light
Once the fault is fixed, switch the warning light off.
Live data
Revs, temperatures, pressures, sensors — over a hundred readings.
Works offline
No account, everything ships inside the app.
All 774 generic SAE J2012 fault codes, explained
Already have the code?
Every standardised code has its page: what it means, how serious it is, and what to do. The most consulted: