Since I have no idea what shape the engine is in after having spent 3 years in the open, I was hoping not to have to drop $75 just to turn the engine over after I swap out the oil/gas/plugs and look for major problems. Is there no way to 'hot wire' past a DESS system, at least while the thing is still in my shop?
-
This site contains eBay affiliate links for which Sea-Doo Forum may be compensated.
Followup to GSX key post
- Thread starter dskowron
- Start date
- Status
NO. The reason is so no one will be able to steal your seadoo and hot wire it to get it running. The name Say's it all DESS (Digital Electronic Security System). In the cap is a chip that links to the MPEM ( Multi Purpose Electronic Module). The MPEM is the computer brain as such, and if the cap isn't the right one it won't start, ot turn over period. If you use a wrong cap it will beep to indicate it is the wrong one and no start. This isn't the first time this issue popped up on the forum, but it has to be the correct programed cap or no turn over.
Karl
Karl
Cdi...
They were very ingenious when they put this system together. In very simple terms, to hotwire a car per se, you have to supply power to the ignition then, jumper the starter solenoid. Well, with the Sea-Doo, you can jumper the starter and roll the engine over but the ignition system (CDI or DC CDI) is incorporated into the mpem.....and it's a sealed system. So, no...you'll have to get a cap programmed. But, you can do a compression test by jumping the starter solenoid to see that the pistons are good. If you get good compression and the mpem is not shot, then if there's anything wrong, it will probably not take a lot to get it going again.
Do you have a lanyard cap of any kind for a Sea-Doo? Do you know someone that does? If so, you can put a hot battery in it and put the cap on. If the electronics are good, you'll get one long beep. That will tell you that the mpem identified that as the wrong cap. That way, you'll know that the mpem is probably o.k....you may try and take a piece of wire, about 4 inches long, strip it on both ends and touch the top of the post to the metal ring around it and see what happens. I have no idea if it will cause a beep, but its worth a shot. Worse you can do is blow a fuse.
They were very ingenious when they put this system together. In very simple terms, to hotwire a car per se, you have to supply power to the ignition then, jumper the starter solenoid. Well, with the Sea-Doo, you can jumper the starter and roll the engine over but the ignition system (CDI or DC CDI) is incorporated into the mpem.....and it's a sealed system. So, no...you'll have to get a cap programmed. But, you can do a compression test by jumping the starter solenoid to see that the pistons are good. If you get good compression and the mpem is not shot, then if there's anything wrong, it will probably not take a lot to get it going again.
Do you have a lanyard cap of any kind for a Sea-Doo? Do you know someone that does? If so, you can put a hot battery in it and put the cap on. If the electronics are good, you'll get one long beep. That will tell you that the mpem identified that as the wrong cap. That way, you'll know that the mpem is probably o.k....you may try and take a piece of wire, about 4 inches long, strip it on both ends and touch the top of the post to the metal ring around it and see what happens. I have no idea if it will cause a beep, but its worth a shot. Worse you can do is blow a fuse.
Last edited by a moderator:
- Status
Similar threads
