Forum Discussion
dougrainer
Apr 07, 2022Nomad
IF the 2020 Ford dash has the standard Headlamp switch with the roll wheel Dimmer----IF that wheel is rolled to the click position(normally turning on the overhead light, NOT installed on most Chassis), that engages a relay. Even with NO light connected it will cause a drain from that relay. Also some RV makers install a light to that switch, but that light is in front above the radiator and not easily seen if on unless at night. Doug
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