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Fuel pump not working 2003 ml500

65 views 6 replies 3 participants last post by  bobby735  
#1 ·
car has been standing in garage for a while. Tried to start it noticed fuel pump not running. Checked fuel pump relay and fuse, no power at fuse and relay. There is power to the fuse box. Where is the feed coming from to the relay fuse? Would any one have a wiring diagram? Any help would be very much appreciated.
 
#3 ·
All relays in fuse box F2 have common feed straight from battery. F2k2 is fuel pump relay.
All relays in fuse box F2 have common feed straight from battery. F2k2 is fuel pump relay.
Thank you very much, I am just not good at reading the diagram. Where is the blue wire that activates the relay coming from? Look like it goes via some other component to the ignition switch. I think thats the problem.