No beep No start No diagnostic

[Robby Smolinski]

Hey guys, I just totally rebuilt a 2003 sea-doo gti le rfi. When I was ready to start it, it fired right up and ran perfect. For 3 days in a row I took it out and it was perfect. On the third evening, we went out again and cruised, and stopped a few times, every time shutting it off and removing the lanyard. When I went to start it back up to go in for the night, I got nothing. No beep, no start. I went home, thinking the battery was dead. It wasnt. I looked in my service manual for diagnostic help, and it says to remove lanyard, and press start stop button 5 times and it should beep at you. Mine does not, just dead, nothing. So I watched many videos and read a bunch of forums trying everything from fuse replacement, to checking every pin on all the big plugs going into mpem, and all my grounds and everything are clean and solid. I'm beginning to think it's the lanyard post (safety switch) is there a way to test it? Do you think I'm on the right track? Is it possibly the cpu unit (computer)? I've done it all by myself so far, and now I'm stumped. Any help would be greatly appreciated. Thanks.

 

[benjilafouine]

Looks like lanyard. Just like mine. Started slowly to act up then dying slowly. Sea-Doo would stall all the time like if key removed. I would put back the ski and it would restart for a few seconds. In the end I would hear a long beep (key not recognized). I replaced lanyard post (easy to do) and issue fixed.

Manual 2003 says: 1. bad key, 2. bad lanyard, 3. bad MPEM.

 

[GGuillot]

Hey guys, I just totally rebuilt a 2003 sea-doo gti le rfi. When I was ready to start it, it fired right up and ran perfect. For 3 days in a row I took it out and it was perfect. On the third evening, we went out again and cruised, and stopped a few times, every time shutting it off and removing the lanyard. When I went to start it back up to go in for the night, I got nothing. No beep, no start. I went home, thinking the battery was dead. It wasnt. I looked in my service manual for diagnostic help, and it says to remove lanyard, and press start stop button 5 times and it should beep at you. Mine does not, just dead, nothing. So I watched many videos and read a bunch of forums trying everything from fuse replacement, to checking every pin on all the big plugs going into mpem, and all my grounds and everything are clean and solid. I'm beginning to think it's the lanyard post (safety switch) is there a way to test it? Do you think I'm on the right track? Is it possibly the cpu unit (computer)? I've done it all by myself so far, and now I'm stumped. Any help would be greatly appreciated. Thanks.

I'd look at the start/stop button, since you are not getting the gauges on and it beeping at you with the lanyard removed. Check to see if that switch is closing and has continuity.

 

[benjilafouine]

And by the way, the start/stop button is tied up with the lanyard post (they have a wire in common I believe). There was a y-connector going to the start/stop button when I changed my post.

 

[Robby Smolinski]

Yes indeed. 4 wires, 1 goes to the start/stop. Thank you...