User Guide
Press the button once to disable or enable the unit.
If the LED is on, it is enabled.
If the LED is off, it is disabled.
You can leave the unit enabled at all times or turn it off when you don't need it.
You can also hold down the button for greater than 5 seconds to clear your PCM's error codes and check engine light.
This can only be done while the key is in the on position and the car is NOT running.
If the code clearing is successful, the LED on the unit will blink twice.