So you've heard you may need the ICM updated (M-1162 service bulletin) on your 04 or 05 bike? The dealer is confused and says you don't need one? So how do you find out for sure if you need to do it? On 04 and 05 bikes you can extract the part number of your ICM using the speedo. If the part number is not 32478-04A or 32622-04A (the key being ending in A) then you need the update. Note: The 883 sportster will be updated to a B at the end.

How to check the ICM part number and other trouble codes:

http://www.harleyhog.co.uk/0405troublecodes.htm

If you get confused and want to know how to check only the ICM part number, then tell me and I'll write up only those steps.

 

That info is in the tech tips section also https://www.hdforums.com/m_73069/tm.htm and https://www.hdforums.com/m_43975/tm.htm

 

If I knew that, then I wouldn't have posted another message about it. Sorry.

 

No Problem at all! Nothing to be sorry about, better to have too much info than not enough!