In this guide, you will find step-by-step instructions on how to read Toyota check engine light

What you will need

• OBD II scanner 

Procedure

1. Turn on the ignition, but do not start the engine. If your car has a start button, simply press twice without stepping on brakes.
2. All dash lights should turn on.
3. Connect your OBDII scanner to the diagnostic port of your vehicle.
4. Read the codes. If the check engine light persists after clearing the code, take note of the displayed codes and search the meaning of the codes.