Thoroughly clean the connector on the umbilical cord. There is 12 volt
house battery power on a pin close to the tail light contact. Just a little dirt or water will make the light go on. Clean thoroughly and see if it helps
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.