SPN 701 FMI 3 Check Engine Alarm

[Regal28]

First time poster. Could use some help trying to figure out a check engine alarm I am getting. Mostly happens at low RPMs, but can't find a specific pattern. The alarm lasts are 1-2 seconds. Red check engine warning light usually clears within 15-60 seconds of alarm. Getting the code from the Volvo Easy Connect unit and App on an iPad. There seems to be no affect on the boat or operation. All I can fin on SPN 701 FMI 3 is "Auxiliary I/O #01". I did find the following this morning "Identifies the current status of auxiliary input/output functions that are configured uniquely per application.00b = Auxiliary channel off 01b = Auxiliary channel on 10b = Error 11b = Not available" as a further description, but that's not Volvo specific.

Has anyone run into this before? Anyone have any idea what the Auxiliary I/O #01 is? Could really use some help here as my mechanic called it a ghost code which is BS of course.

Appreciate any help someone can provide!

 

[Bondo]

Ayuh,..... Welcome Aboard,..... What motor,..??

 

[Regal28]

Ayuh,..... Welcome Aboard,..... What motor,..??

Thanks! Ugh, knew I left something out! Volvo Penta V8-300-C

 

[muc]

V8-300-C isn’t a valid model designation. It’s missing a letter or 2
maybe post serial number?
SPN 701 isn’t fault code that Volvo uses, maybe check again?

 

[Regal28]

V8-300-C isn’t a valid model designation. It’s missing a letter or 2
maybe post serial number?
SPN 701 isn’t fault code that Volvo uses, maybe check again?

Thanks Muc, here's a picture of the engine sticker. The SPN and FMI codes I'm getting are from the Volvo Penta Easy Connect interface via iPad.

Also found the SPN to DTC conversion table today while reading copious amounts of manuals, service guides, and bulletins from Volvo. Don't know enough to know if these are universal or not, but SPN 701 FMI 3 converts to DTC 1511 - AUX analog Pull-Up 1 high voltage". When looking that up in the Volvo Penta Workshop Manual - EGC Diagnostics, it has DTC 1511 - Trim Sender Voltage High.

So I "think" I'm onto something, but not entirely sure since I'm out of my realm here.

Thanks for reading and asking!

 

[muc]

Thanks for the serial number, makes this much easier.

I'm interested in where you found the SPN 701 FMI 3 to DTC 1511?
I had to dig deep into one of my Volvo student handbooks to find that.
EGC Diagnostics manual #7749393 covers troubleshooting for this code. Unfortunately they are using a scantool. I don't think your easy connect will read voltages? With a good DMM and Wiring Diagram manual #47703486 I'm guessing you would be able to troubleshoot this yourself.

Important! Disregard this code if the boat is equipped with a digital trim system.
Also this code requires the ECM to see the fault for 10 continuous seconds and will clear itself if the fault disappears for 2 seconds. This appears to be an intermittent fault so could be a little hard to find.

If this came into some of the shops I worked in. We would probably just pull a #22005045 trim sender off the shelf and lake test the boat with the sender lying in the bilge to see if the code went away. That would be a kind of expensive guess for a consumer.

 

[Regal28]

Thanks for the serial number, makes this much easier.

I'm interested in where you found the SPN 701 FMI 3 to DTC 1511?
I had to dig deep into one of my Volvo student handbooks to find that.
EGC Diagnostics manual #7749393 covers troubleshooting for this code. Unfortunately they are using a scantool. I don't think your easy connect will read voltages? With a good DMM and Wiring Diagram manual #47703486 I'm guessing you would be able to troubleshoot this yourself.

Important! Disregard this code if the boat is equipped with a digital trim system.
Also this code requires the ECM to see the fault for 10 continuous seconds and will clear itself if the fault disappears for 2 seconds. This appears to be an intermittent fault so could be a little hard to find.

If this came into some of the shops I worked in. We would probably just pull a #22005045 trim sender off the shelf and lake test the boat with the sender lying in the bilge to see if the code went away. That would be a kind of expensive guess for a consumer.

Thanks for the info and references! Much appreciated.

I found the SPN to DTC here https://www.bakesonline.com/media/resourcelibrary/IndmarDiagnosticTroubleCodes.pdf it's a 2008 reference, but not sure how often this stuff changes.

The easy connect will only tell me engine voltage like a typical dash.

It's an analog trim gauge/system. Had some time yesterday and went to see if the trim gauge moved when I moved the trim, sure enough, it did not! From what I'm reading, that's another way to point towards a bad sender.

Curious though, if you disconnected the trim sender just to stop the alarms until it could be replaced, does it work that way? or would it create a different alarm?

 

[muc]

Thanks for the link, had never seen that before. I did very little work on Indmar products. I didn't check to see if it's right for other codes, but it works for this one. Might be something a guy like @alldodge would like to copy to his comp?

Sorry, but disconnecting the sensor will set this same code. This system has an "auto learn" feature to it. When we don't have a scan tool handy and have to replace the trim sender. After trim sender replacement, trim drive all the way up, unplug sender, key on, wait 10 seconds for code to set and then plug sender in. Now the ECM has learned how far up the boat builder wants the drive to go so it doesn't hit the swim platform.

My guess is that you have a bad trim sender, but it could be a cut or disconnected wire.

 

[alldodge]

Thanks @muc have it saved