Interior Lights/Dome,Trunk,
 

96 C280..I ve searched the web and here now for a week.. there were so many different scnerieos. so, heres mine - I have no dome lights,replaced bulbs,have 12 volts at dome light,all fuses good,no trunk light,no rear dome, Doors lock from inside from dash button.Sometimes with remote from outside.After starting car the pse or the air pump on right side of car stays going for sometime.From what I understand so far is it could be the pump on right side of trunk...or a switch under the column... any help would be great......

Anyone with any ideas where to start ...going check door switches 2day 4 power