Without Scan Tool

Erasing DTCs

The DTCs may be erased only when all stored DTCs have been displayed at least once and the first DTC has been repeated.

Note: DTCs must be erased with engine switched off, otherwise the function cannot be guaranteed.

Press and hold the test button for at least 5 seconds. The LED will light 3 seconds after the button has been released. Press the button again for at least 5 seconds.