1. Wiring according to the ECU pin diagram.
2. Turn on the power.
3. Adjust the ECU power supply voltage (V).
4. Power on the ECU.
5. Turn on the ignition switch.
6. Press the speed adjustment stop/start knob to adjust the speed.
7. For example: to see whether the fuel injectors CYL1, CYL2, CYL3, CYL4arerunning normally, you can see the flashing light to determine whether thereis asignal output.
8. If you look at the data flow, connect the ECU diagnostic line to the K, L, CAN-H, CAN-L of the machine, and then
connect the OBD diagnostic port to look at thedata.
