Modern Vespa

Dear friends, very very please for help!

One week i find the problem! Problem is: One day - when drive - Suddenly Speedometer and lights stoped!
Engine - not!

I check every fuses and replace one 7.5 A fuse, and 5 a who is not worked.
Now 5A , when testet - not work.

Please help! I test with new Speedometer dashboard -but not success.

clear every fuses, boxes with spray - crear contacts but sitll not work! Please for ideas...

Piaggio mp3 Yourban 300 lt

Do the turn lights, brake and tale lights work? Does the tilt/speed sensors work? Did you check ground wire which is black, that goes from battery connected to the body somewhere? There maybe two ground wires that goes to engine and body separately. Do you have multimeter?

Hello again.
Today i received new speedometer - test but problem is stay!

Symptoms are: Turn lights - not works, Front light - not work! Engine start - work correct!
Scooter work, but without front head light and turns and without dashboard!
On speedomether work: in RED - immobilizer, and indicator for lock mechanism.
Not work: Fuel, not start check, before check worked.

Long Fronlight - work only when click button!

Today i replace fuses , clear connectors but still not work
5 A fuse still not work
For more information i create video please see: https://youtube.com/shorts/wNxU3IyBh-0?si=_XXR9V6D_v2QR7hO

I HAVE MULTIMER - how to test dear ?

Wile I'M looking for wiring diagram, could you please check the following: connect multimeter to battery leads; start the motor; write down the voltage battery shows wile motor runs. Let me know these numbers.

I will check battery but after 24 hours, because now i am not in garage! Thank you! I am afraid, because check everythink... I plan to deattach the side covers and to see for problem like - A wire touched and fused to the motor and other!

I'm just at a dead end And there has to be a solution

Thank you!

I see you have found this post too: Dash, turn and tail lights quit working on 2007 mp3 500

can't find wiring diagram, do you have one?

iignationswitch is the problem

I hope you'll find easiest acces to it! I got Mp3 service manual if you'd like. Only wiring diagrams there badly scanned as always, but it could teach you dissasembling the body.

Dear friends...
I am very stupped, but still love mp3

The problem is one of fuses - 10a ! I test everyone fuses, but thisone not light with my tester on one side! Of othersite - work, but of one - not! I change it and now everythinks is okay!

Conclusion : The key is in fuses

About this 10 amp fuse - in visual is correct - but not working

Thank you ALL! Best regards