Circuit Load Testing
WARNING: This page is about a different car, the 2020 Ford F-550 Super Duty, 2020 Ford F-450 Super Duty, 2020 Ford F-350 Super Duty, 2020 Ford F-250 Super Duty, and 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Some module power and ground input circuits may be very sensitive to voltage drop due to increased internal circuit resistance. Make sure to follow the tool manufacturers instructions of a resistor load testing tool to identify high resistance circuit concerns that may prevent unnecessary replacement of parts.