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Help! Check Engine light flashing 5 long blinks and 4 short... 17 Foreman 500 FM... only 2 weeks old under 20 miles 7 hours. Installed superwinch but advised by honda to use OEM Wireharness and plate. Now getting the check engine light..if correct long blink is by 10s and short is single. so under the assumption its a code 54 but i have google everything i can. thought it was from disconnection of battery but after stay off for a bit it came right back on. HELP!! Will take to the dealership just would like an idea if its something with voltage or connection issue when installing winch. thank you
 

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Good question sorry I don't know--mebbe there diagnostic listing in your service manual. Could be unrelated to winch install but maybe there's a diagnostic reset has to be done using special programmer.

Did you follow Honda recommendations regarding the harness?
 

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I don't know much regarding diagnostics but my main concern would be voiding the warranty by not following Hondas advice regarding the wiring loom/harness.
 

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Enjoy for 2017 Foreman!
 

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with those hours, any chance this is telling you to change the factory oil ?.
 

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Hi: Code 54 is your Bank Angle Sensor --may have a loose connector
 
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