how to reset the check engine light on Volkswagen Passat B8 (2015-2022) after repairs

Solution

1. Preparation

• Gather necessary tools including an OBD-II scanner.
• Ensure the vehicle is parked in a well-ventilated area.
• Turn off all electrical accessories (lights, radio).

2. Connect OBD-II Scanner

• Locate the OBD-II port, typically found under the dashboard on the driver's side.
• Plug the OBD-II scanner into the port securely.

3. Perform Ignition Sequence

• Turn the ignition key to the "On" position without starting the engine.
• Wait for the scanner to power up and establish a connection with the ECU.

4. Clear Diagnostic Codes

• Navigate through the scanner menu to find the option for "Read Codes" or "DTC."
• Select the option to "Clear Codes" or "Erase Codes."
• Confirm the action when prompted on the scanner.

5. Disconnect Scanner

• Once codes are cleared, safely disconnect the OBD-II scanner from the port.
• Turn the ignition off and then back on to ensure the check engine light has turned off.