Lexus Read & Clear Fault Codes
Is your Check Engine Light illuminating your Lexus? Learn how to troubleshoot and clear the faulty code using an OBD-II Scanner.
How to Read & Clear Fault Codes on a Lexus
What you will need
The procedure is the same regardless of the scanner being used. Codes from the Engine Control Unit (ECU) can be read with a basic scanner. Codes from the transmission, airbag, anti-lock brakes, and traction control require a multi-system scanner.
Procedure
- Locate the OBD connector under the dashboard on the driver’s side.
- Connect your OBDII reader to the OBD connector.
- Turn your key in the ignition with two clicks. Press the button twice on vehicles with Start/Stop without touching the brake pedal.
- Allow the scanner to power on and select your Lexus model.
- Select Auto Scan or Full System Scan to read fault codes from all the modules. Or select Control Units to pick the system you want to diagnose.
- Select Read Fault codes. A list of fault codes will be displayed on the scanner.
Press the button twice on vehicles with Start/Stop without touching the brake pedal. 
Codes that show up as PRESENT or CURRENT need to be addressed.
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Codes that show STORED, PAST, or HISTORY mean that they existed in the past but are not currently an issue. They can help you troubleshoot challenging problems.
We hope you find the Lexus Read & Clear Fault Codes guide helpful. Check these troubleshooting and repair guides for more help on your Lexus.
