APsystems ECU-C - Power; USB Interface; Reset; Led

ECU-C Installation/User Manual
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2.Interface Explanation
2.5 AP
Press the AP button to turn on AP. Then the ECU can be scanned by phone. You
can press the button again to turn off AP. If you don't turn off AP, ECU will turn
off it automatically in one hour.
2.6 Power
Press the button, ECU will be powered on. Press the button again, the button
would bounce back and ECU will be powered off.
2.7 USB Interface
The USB interface is reserved.
2.8 Reset
Press the Reset button for three seconds or longer, and the ECU-C will
automatically return to the default settings.
The historical power generation won't be cleared.
2.9 LED
The OK light will blink when ECU-C starts up, and it will keep on after
registering.
The Comm light will be on when the ECU-C connects to EMA.
The Fault light will be on when the ECU-C breaks down.