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Hello ladys and gentelman, I try to repair my w211 e 270 and I have a big problem:
My fuel pump dont work for I change it
I checked the fuse and the relay, they are good
The problem is:
the relay is controled by the ECU unit control engine so
I remove the fuel pump relay and I take my voltmeter and I plug it in the commande circuit of the relay from the ecu: I read 8v and when I plug the fuel pump relay, the voltage decrease to 0.04v (and the relay is still open, he dont let electricity go to the pump)
so I think the problem come from the ecu so I want to test it
Does anyone have a wiring diagram schematic with color coding and function of the different wires of the “F” connector on the ECU . Where could I find it?
I know the rear sam is good, I cant tell you how I tested it in english, to much specific vocabulary for me xD
thank you guys and im sorry if my english is bad im french
Have a good night
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ECU connectors wiring diagram
