Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
Sponsored by:
Sponsored by:

PO523 code

Thread Tools
 
Search this Thread
 
Old Jun 24, 2018 | 04:29 PM
  #1  
fourburgs's Avatar
fourburgs
Thread Starter
|
Tourer
15 Year Member
Liked
Joined: Nov 2010
Posts: 393
Likes: 33
From: Lansdale Pa.
Default PO523 code

Any one get this code and PO522 code ? Oil light stays on . Shut the bike and restart all good ..
 
Reply
Old Jun 24, 2018 | 06:19 PM
  #2  
Harttoo's Avatar
Harttoo
Road Master
Veteran: Army
10 Year Member
Liked
Joined: Feb 2014
Posts: 1,240
Likes: 171
From: Wisconsin
Default

Yep,Oil pressure sensor/switch. Replaced under warranty 2 months ago.
 
Reply
Old Jun 15, 2019 | 08:25 PM
  #3  
Uinseann Di Simone's Avatar
Uinseann Di Simone
Intermediate
Joined: Sep 2012
Posts: 30
Likes: 0
Default

My bike did it today on the way back from Laconia. P0522 & 23.
Not a light you want to see first thing in the morning when you start your ride...
 
Reply
Old Jun 16, 2019 | 05:17 PM
  #4  
&HDRULES$'s Avatar
&HDRULES$
Advanced
Joined: Jan 2017
Posts: 57
Likes: 31
From: Ohio
Default

Originally Posted by fourburgs
Any one get this code and PO522 code ? Oil light stays on . Shut the bike and restart all good ..
My 2017 street glide purchased in 2016 first m-8's out (stage three big bore kit) has did that from day one but isn't a persistent problem and has never used a drop of oil! Sensor and oil pumps has been replaced several times. I know when you see that red oil light you think oh ****!... I just make sure to restart it check my oil pressure and make sure light went out no big problem I'm getting used to it now but it is unfortunate there's no fix almost 3 years later cmon HD!
 
Reply
Old Sep 8, 2021 | 04:08 PM
  #5  
18deluxerider's Avatar
18deluxerider
Tourer
Joined: Sep 2019
Posts: 430
Likes: 130
From: Harley ville
Default

Mine just came on. P0523 p0522. Shut off start up. All good. Needs a screen.
 
Reply
Old Oct 31, 2022 | 07:25 PM
  #6  
Breezybob's Avatar
Breezybob
Novice
Joined: Oct 2011
Posts: 20
Likes: 1
From: NJ
Default

2017 StreetGlide Special, M8, ~42,000 mi. Just got both codes: P0522 & P0523 followed by PN41000521a. Checked my oil and I'm about 3/4 qt low. Only 2,000 mi since I had 40K service. This is the first time the oil has ever been low and I check it every thousand miles or so. I topped it off and reset the codes. It's been fine for the last 300 miles, no codes and the oil level is right on. I'm just going to keep an eye on it. Does anyone know what that PN number is all about? I tried a search of the forum and didn't find it.
 
Reply
Old Nov 1, 2022 | 01:24 PM
  #7  
Keithhu's Avatar
Keithhu
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2009
Posts: 17,154
Likes: 6,177
From: SE Michigan
Default

Originally Posted by Breezybob
2017 StreetGlide Special, M8, ~42,000 mi. Just got both codes: P0522 & P0523 followed by PN41000521a. Checked my oil and I'm about 3/4 qt low. Only 2,000 mi since I had 40K service. This is the first time the oil has ever been low and I check it every thousand miles or so. I topped it off and reset the codes. It's been fine for the last 300 miles, no codes and the oil level is right on. I'm just going to keep an eye on it. Does anyone know what that PN number is all about? I tried a search of the forum and didn't find it.
I think its the oil pressure sensor, but those part numbers often don't really address the actual problem. Just because the sensor is throwing a code, it doesn't mean the sensor is bad (what sensor would report which bad sensor?), it means the sensor is sensing something.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
smkauffman
Milwaukee Eight (M8)
22
Sep 16, 2022 09:53 AM
gvallanc
Tri Glide, RG3 & Freewheeler Models
2
Aug 13, 2018 10:27 AM
GZRGLYD
Milwaukee Eight (M8)
12
Nov 20, 2017 06:36 PM
larry69fatboy
Touring Models
1
Oct 26, 2012 07:40 PM
Booey424
Sportster Models
3
Apr 29, 2008 02:12 AM




All times are GMT -5. The time now is 10:51 AM.

story-0
10 Most Awkward-Looking Motorcycles Ever Built

Slideshow: Not every motorcycle can be a design icon, and these machines prove that bold styling doesn't always age gracefully.

By Verdad Gallardo | 2026-06-12 11:58:41


VIEW MORE
story-1
Jason Momoa Is Turning Classic Harleys Into PHEVs

Slideshow: Jason Momoa's latest restoration project blends 1920s Harley-Davidsons with modern electric technology, creating some of the most unusual hybrid motorcycles ever built.

By Verdad Gallardo | 2026-06-10 17:18:58


VIEW MORE
story-2
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.

By Verdad Gallardo | 2026-06-03 18:28:05


VIEW MORE
story-3
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-4
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-5
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-6
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-7
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-8
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-9
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE