Fault code list

[New Guy]

Hey guys I tried a quick search and I am looking for a fault code tree. I am getting a code and I want to research it a bit.

[boater4life]

Found this but its from 2008, not sure if its the same as the '14.

https://www.m2omarine.com/resources/IndmarDiagnosticTroubleCodes.pdf

[sandm]

assume you are still warrantied. be careful how much digging you do. no reason to give dealership a reason to not fix :)

[boater4life]

This is the 3256 fault. You said it was something like that. Again though, not sure if its the same for '14.

SPN 3256, FMI 5 - EGO3 Open/Lazy (HO2S3)
PK/BK
• Heated or Universal Exhaust Gas Oxygen Sensor (Bank 1-Sensor 2/After Catalyst)
• Check Condition- Engine Running
• Fault Condition- HEGO/HO2S or UEGO cold longer than the time defined in the calibration
• Corrective Action(s)- Illuminate MIL and/or sound audible warning or illuminate secondary
warning lamp.
• Emissions related fault
In a post-catalyst configuration the HEGO/HO2S sensor is a switching-type sensor around
stoichiometry that measures the oxygen content downstream of the catalyst for two main functions: 1)
to compare it to the oxygen content upstream of the catalyst to determine how efficiently the catalyst
is using oxygen to determine its effectiveness and 2) trim the commanded equivalence ratio target to
maximize the catalyst conversion efficiency. The post-catalyst strategy and diagnostic is only active
when the system is in either “CL Active” or “CL + Adapt” control modes.
This fault will set if the sensor element is cold, non-responsive, or inactive for x seconds as
defined in the diagnostic calibration. Cold, non-responsive, or inactive are determined based on two
criteria 1) a measurement of the feedback sense element (zirconia) to determine its temperature or 2)
a lack of change in sensor feedback.