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Discussion Starter · #1 ·
Hi all,
My YP400A 2008 has failed to pass yearly Swiss control yesterday: ABS not running (I can confirm). I have 1 month only to fix it.

All fuses are good. ABS test light seems OK, it lights up with contact On and deseapears right after. Both wheel's sensors seem in good shape too.

For time being, I am searching where is located this ABS hydraulic unit? Any JPEG would be welcome. Firt, I'd like to check if its pump motor's is running properly. I've seen some issue on others bikes with DC motor brush contact... Amp-meter will tell me.

2nd, I'm thinking to do a complete brake flush and bleed. It is not too much effort and I haven't done it for a while.

I am fully equipped and confident with meca and elect. I do have Service Manual but only for 2004, without ABS unfortunately.

Any idea or past experience is most welcome. Merci!
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