Where is the door sensor in these things? 2003 Ford Ranger 4.0 auto, club cab. It will go on over a bump or turn then go off over the next bump or turn. Maybe it sticks on maybe it sticks off depending on what mood its in. I tried blowing out and WD and graphite lube on the lower door hinge and every door moving part where the pad looking deal is. It doesn't have the plunger type gadgets that is typical on other car doors. Thanks