Check Engine Codes 698 & 6988 - Low Voltage

[creggree]

My 2013 Cobalt 262, with a Colvo Penta V8-380-C-B) has run great since I purchased it three years ago. For the 2nd time, the check engine alert went off. The first time there were many codes, the local marina cleared them, and I took the boat out twice before the check engine went off again. They ran the scanner, and it's returning codes 698 & 699, which they told me is a low voltage code. They change the spark plugs, but they admit they are only guessing. Has anyone received these codes and could share what the fix was?

 

[dingbat]

My 2013 Cobalt 262, with a Colvo Penta V8-380-C-B) has run great since I purchased it three years ago. For the 2nd time, the check engine alert went off. The first time there were many codes, the local marina cleared them, and I took the boat out twice before the check engine went off again. They ran the scanner, and it's returning codes 698 & 699, which they told me is a low voltage code. They change the spark plugs, but they admit they are only guessing. Has anyone received these codes and could share what the fix was?

SPN-698 FMi 5 (Oil pressure gauge driver voltage low)
SPN 699-FMi-5 (Trim gauge driver voltage low)

 

[creggree]

Thanks for the response. Any suggestions on what I should try?

 

[alldodge]

Here is a good write up that @muc posted. Will need a serial number
https://forums.iboats.com/threads/volvo-penta-2015-codes-697-698-699.765831/

 

[creggree]

Here is a good write up that @muc posted. Will need a serial number
https://forums.iboats.com/threads/volvo-penta-2015-codes-697-698-699.765831/

This is great information. I have many of the same issues with my 2013 Cobalt 262, with a Volvo Penta V8-380-C-B. For the 2nd time, the check engine alert went off. The first time there were many codes, the local marina cleared them, and I took the boat out twice before the check engine went off again. They ran the scanner, and it's returning codes 698 & 699, which they told me is a low voltage code. They changed the spark plugs, but they said the issues are a "head-scratcher." I'm trying to find another mechanic and am considering buy a scanner. Any recommendations on a scanner and where I can get the correct Volvo guide?

Thank you in advance for any help you can offer.

 

[alldodge]

Scanner is made by Rinda and would be best to get their diacom software. The Techmate pro provides same info but only displayes 3 lines at a time and no way to record data for play back later
https://www.rinda.com/marine/marinemenu.htm