Structurally, the electronic control unit is designed in such a way as to exclude the influence of external electromagnetic interference on it.
However, if the vehicle is equipped with a CB radio, etc. (even with an output power of only 10 W), then it may in some cases affect the operation of the electronic unit, especially when the antenna and connecting (feeder) cables are laid next to the electronic control unit.
Therefore, the following precautions must be taken:
1. Install the antenna as far as possible from the electronic control unit. The ECM is located under the instrument panel on the driver's side, so the antenna must be mounted at the rear of the vehicle.
2. Lay the antenna cable as far as possible from the wiring of the electronic control unit, at least 20 cm, and even more so do not twist them together.
3. Check if the setting is correct (harmonization) antenna cable and antenna.
4. Do not install a powerful radio station on the car.
5. Do not open the cover or housing of the electronic control unit unless absolutely necessary (some pins can be damaged by static electricity).