2003 RKC PPU 51502 code?

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Apr 2, 2017 | 03:35 PM

cajun1957a

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Road Warrior

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2003 RKC PPU 51502 code?

Does anyone know what PPU 51502 code. The engine light and keylight came on today. The speedo went goofy as well right after I washed it. Hint to self, Something may have got wet. But I go through the diagnostic codes and all ten are clear except after the tenth one A PPU appears then when I press the button 51502 comes up.

randy

Aug 1, 2018 | 12:45 AM

smccabe

4th Gear

Joined: Jul 2018

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From: Long Beach Ca.,

Hi, I just made my first post, and it is in re; to same PPU 51502. Did you find out what it was all about and were you able to clear it?
Thanks, Smccabe

Aug 1, 2018 | 03:03 AM

Tarkus60

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Joined: Apr 2016

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From: Salem IN

I think PPU has do to with the speedometer sensor...I just googled it so not sure.
My key light was coming on last year,I put a new battery in the Fob and reset the alarm.

Aug 1, 2018 | 07:34 AM

cajun1957a

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I don't think I did anything. It went away shortly after. I honestly don't remember what caused it or what I did.

randy

Aug 1, 2018 | 09:42 PM

smccabe

4th Gear

Joined: Jul 2018

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From: Long Beach Ca.,

That could be the easiest fix. Will try. Thanks!

Aug 2, 2018 | 11:34 PM

Owner

Tourer

Joined: Jul 2017

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From: The S.E. Valley. AZ

Found this on a HD code search site, “codes most likely can’t be deciphered without the HD Electrical Diagnostics Code Manual”. ($129). I can’t find a pdf of that anywhere online..

From what I gathered while breezing over the lengthy write up, the letter represents a catagory, (P, U) the first two numbers place the code in its ranking (51 - current/historic), and the following numbers relate to the code definition.(502) VSS High Open can-bus
VSS Speed Failed Low

This should confuse everybody well enough..To be honest I’m not sure this is of any significance. The only part I really understand is, it’s $129 to get code definitions.. lol

Last edited by Owner; Aug 3, 2018 at 12:13 AM. Reason: Attempt at clarifying.

Aug 3, 2018 | 06:40 AM

cajun1957a

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Road Warrior

Joined: Sep 2007

Posts: 1,252

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I remember after researching my code issue was to turn the bike ignition on and off. I think it was like 50 times to clear any historically codes. After that I have never seen it since. I don't know what caused mine to initially cause it but its gone and has never returned.

randy