Downtown 125i 2013 dead..

[Stig / Major Tom]

When jumping with another,  known good,  battery....might try removing both  pos and neg wires from battery. Now attach these wires to your jumper source.
In other words - remove "sparky" (your old battery) entirely from the start attempt process.
Just a thought...
Stig

[elmin]

How can I troubleshoot fuses,they are good.

[CROSSBOLT]

You have elimonated the fuses, now you are tracing voltage to see where it quits....

[elmin]

When jumping with another,  known good,  battery....might try removing both  pos and neg wires from battery. Now attach these wires to your jumper source.
In other words - remove "sparky" (your old battery) entirely from the start attempt process.
Just a thought...
Stig

Still the same,I jumped from another battery directly  to the wires,red and blak,nothing..

[CROSSBOLT]

Well, you have something that has "burned in two" or destroyed. Now, we are trying to find out what it is, cheap or expensive.

[elmin]

Well, you have something that has "burned in two" or destroyed. Now, we are trying to find out what it is, cheap or expensive.

Thank you for your advices.. What can I do,it is a mistake that i will learn from it..
Do you think now it could be ECU?

[CROSSBOLT]

I don't know and refuse to guess untill we do some tests to isolate the cause.

[elmin]

What can i do next?

[CROSSBOLT]

We need to see a description of what tests you performed with the multimeter. Such as, probed the fuse backs through the two little holes in their backs to see voltage/no voltage when keybturned on. Then, once that is verified, we go to the next voltage check.

[elmin]

I checked fuses from the back,as I said before,3 of them not workin and no  voltage on them,other 2,MAIN 11.54V and H/L no voltage.

[CROSSBOLT]

MAIN being the 30 amp fuse is the only one with voltage now?

[elmin]

Yes,only one with voltage,H/L is working to but showing no voltage.

[CROSSBOLT]

Yes,only one with voltage,H/L is working to but showing no voltage.

Based upon reading everything from the beginning you have something burned in two from the battery either red or black, + or-. It could be inside the terminal socket where the wire connects to the terminal. Probably a ground wire I am GUESSING the easiest ground connection was on the frame or engine. Will require careful inspection and testing.

[roxyflash]

Check voltage at key switch

[elmin]

Based upon reading everything from the beginning you have something burned in two from the battery either red or black, + or-. It could be inside the terminal socket where the wire connects to the terminal. Probably a ground wire I am GUESSING the easiest ground connection was on the frame or engine. Will require careful inspection and testing.

Just small uodate. I bought new ECU,it is sold with throtle body,and it is not that problem,so ECU is fine..

Check voltage at key switch

How can check voltage at key switch?