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Fuel Flap Actuator - Low Voltage?

10K views 24 replies 7 participants last post by  MDS travel  
Hi sorry to jump in on this but i found this useful as the drivers door actuator and fuel flap would not open using the remote on my ml270 (w163) so I tried the suggestions using the jump lead from live point to #30 and they both opened, also bridging 87 & 30 did the same thing, what I do not understand is what to do next. It seems that I have introduced power to the actuators so am i right in thinking that the circuit is intact no broken wires and that the power is not coming into the relay board or am i all at sea. ??

Need to add all other locks work using the remote, the other thing is that in traffic they all lock and unlock due to stop and over 8mph speed set.
 
Drivers door does not unlock with center console switch and conecting the two terminals as said I get a change in the voltmeter this is so confusing from total unlock everything locks from the remote and the center console switch when you press unlock everything but the drivers door and fuel flap open same applies to center console, if I try locking the truck with the key manually from the drivers lock it only locks that door nothing else not even the fuel flap and it only unlocks itself the same applies to the passenger side door it only locks and unlocks itself this is driving me nuts