Toyota Repair: Landcruiser electrical, spare tire mount, ground wires

Question
I'm still tracing a weird electrical issue on a 00 TLC.  Rev lights pulse with RH turn signal.  Occassionally, RH turn sigs  stay on when key is off.  At times, RH turn lights and Rev lights will come on with brake lights.  I've checked ground BG by spare tire mount, and ID by right kick panel.  I'm out of ideas.  Any chance RR lamp assembly could be backfeeding?  Maybe J7 behind glovebox isn't grounding the indicators?   T4 hitch connection is not being used, and I've cleaned it just to make sure it's not shorted. Appreciate any suggestions. Thanks

Answer
I'm not sure how much I can help with this electrical problem, make sure that the trailer hitch wiring is completely eliminated from the rest of the system and if the problem is still there check all the bulb sockets including the parking lights/turn signal lights in the front, remove each bulb and make sure that the correct bulbs are installed and that the contacts inside the sockets are good.  With an ohm meter check each socket for a short to ground, all white/black wires(or brown) are ground wires, make sure there is continuity to body ground in each socket from the ground contact, then check the green/white or green red wires to body ground, there should be no continuity or very little, less than one ohm. Do this with the battery disconnected. Let me know if you need more help.