Thread: 12V LOW
05-30-2009, 05:53 PM #1
So the past 2 times I have had the ski out it has ran great for about an hour and then I begin getting the annoying Single beep and the battery indicator flashes and reads 12V Low, After awhile I get PO652, which is the electrical system. I posted about 3 weeks ago on this same problem and thought it was the battery, so I replaced that and continued with a new battery, same thing. So What would be my next place to look for a problem. I am thinking it is not chargin while running anymore and wiht all the stopping and starting, the starter is just draining the battery. So what would be next???
05-30-2009, 05:56 PM #2
I would check the battery voltage with the engine off. It should be at least +12.5 VDC. Then start the engine; the voltage should be at least +13.5 VDC. If it's not, the charging system is not working... Ron
05-30-2009, 05:56 PM #3
05-30-2009, 06:54 PM #4
05-30-2009, 07:47 PM #5
It could be as simple as a bad, or corroded fuse in the MPEM.
I've had a fuse get corroded more than once, and that was all it ended up being. I would look there first, then to the batt
05-30-2009, 08:29 PM #6
Yeeeeeap, I seen this before as well. It turned out to be a fuse holder problem.
Where the fuse plugs into the connector, the actual fixed part of the connector was twisted/crooked, and not making a good connection in the fuse box in the MPEM.
I remember it was a red fuse too.
I actually could see the mark where arcing had blackened the fuse itself.
This is not a first either, have seen this on a few other skis too.
I had this feeling it was the regulator/rectifier or the alternator to be at fault.... lady luck smiled upon me that day..!!
Have a GOOD look at the fuses and the metal contacts they slide between. If you notice one twisted/mis-shaped, have a look on the fuse, and you will see a small blackened pitting mark... thats the cause.
It drove me nuts one day, and the battery charge was getting low... causing a mis-fire for me.
Just this is the first one to look into, as it is not an expensive to fix problem either, just straight-forward look and fix-up.
Rule #1... look for the cheap fixes first..!!
05-30-2009, 08:53 PM #7
All fuses looked good, any other cheap fix ideas before I throw down for a Voltage Regulator in hopes that is the problem??
05-30-2009, 09:27 PM #8
Post #3 tells you the test to confirm if the regulators is good/bad.
I've posted on this before and didn't get much help, this thread is proving good. I will be checking the fuses as my Low Voltage warning is intermittent.
05-30-2009, 09:34 PM #9
Another easy, fairly quick test is, find a buddy, or anyone with your year rxp,or T and just borrow a known good one to do a quick swap out test, before you spend the money for a new one.
05-30-2009, 09:42 PM #10
I have to wait for the battery to charge a bit before i can even get it to turn over. Im talking the battery is DEAD!!! however, it will charge full and hold a charge for over a week so i know its not the battery.
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