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

Nothing When Ignition Switch is On

Thread Tools
 
Search this Thread
 
  #11  
Old 08-08-2024 | 06:12 PM
FLTRI17's Avatar
FLTRI17
Stellar HDF Member
Joined: Sep 2009
Posts: 2,047
Likes: 623
Default

If your bike ran and you replaced the battery and now you get no power to anything….WTF? Bad battery?
Bob
 
  #12  
Old 08-08-2024 | 06:53 PM
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Joined: May 2008
Posts: 18,834
Likes: 9,654
From: South Carolina
Default

I made some suggestions on your other thread that you did not answer.
Good Luck.
 
  #13  
Old 08-08-2024 | 07:48 PM
1badharley's Avatar
1badharley
Cruiser
Joined: Jan 2009
Posts: 165
Likes: 46
From: MI
Default

Have you pulled the battery and taken it in to have it load tested? thinking this because when you say it is on the maintainer you get the flashing/clicking noises. Or if you have a real charger +10 amps or more try hooking that up and see if you get the lights to work......my 2 cents
 
  #14  
Old 08-08-2024 | 11:56 PM
$tonecold's Avatar
$tonecold
Thread Starter
|
Club Member
Joined: Feb 2011
Posts: 4,340
Likes: 1,866
From: Gilbert, Az.
Riders Club Member
Default

Originally Posted by Dan89FLSTC
I made some suggestions on your other thread that you did not answer.
Good Luck.
I appreciate your input. You have to consider that I work ten and a half hours a day, usually have better than twelve hours invested when travel time is considered, so sometimes I don’t have access to the bike to answer questions.

I did find that the ground circuit the maintainer lead is on has 7.38 volts flowing through it. It grounds to the #2 ground location. I don’t know where that is on the bike, not sure where to find that information. That appears to be a good starting place though.
 
  #15  
Old 08-09-2024 | 05:38 AM
Stickman53's Avatar
Stickman53
Cruiser
Joined: Jan 2010
Posts: 209
Likes: 58
From: Sunshine state
Default

I recommend removing the BCM to inspect the pins and sockets to ensure they're all making good contact, and no pins appear burnt.
Reseating connectors is always a good idea when troubleshooting electrical things.
 

Last edited by Stickman53; 08-09-2024 at 05:55 AM.
The following users liked this post:
FranBunnyFFXII (08-10-2024)
  #16  
Old 08-09-2024 | 06:05 AM
jake24lt's Avatar
jake24lt
Stellar HDF Member
Joined: Jan 2017
Posts: 2,209
Likes: 1,599
From: Massachusetts
  #17  
Old 08-09-2024 | 08:17 AM
$tonecold's Avatar
$tonecold
Thread Starter
|
Club Member
Joined: Feb 2011
Posts: 4,340
Likes: 1,866
From: Gilbert, Az.
Riders Club Member
Default

Originally Posted by jake24lt
Thanks for that Jake. I do have the service manual with the schematics, but that makes it a little easier to follow the the ground circuit.

I disconnected the BCM this morning and the ground on the maintainer lead was still hot at 7.38 volts. This makes me believe that ground #2 is not making a good connection. The other question is what is feeding power into the system that needs to be grounded if the ignition is off. The way I understand this is if the ground was making contact it shouldn't show any power because it would be going to ground.
 
  #18  
Old 08-09-2024 | 10:19 AM
bradsULtd's Avatar
bradsULtd
HDF Community Team
Joined: Mar 2008
Posts: 1,869
Likes: 535
From: NH
Community Team
Default

Originally Posted by $tonecold
Thanks for that Jake. I do have the service manual with the schematics, but that makes it a little easier to follow the the ground circuit.

I disconnected the BCM this morning and the ground on the maintainer lead was still hot at 7.38 volts. This makes me believe that ground #2 is not making a good connection. The other question is what is feeding power into the system that needs to be grounded if the ignition is off. The way I understand this is if the ground was making contact it shouldn't show any power because it would be going to ground.
Any "good" ground should be at "zero" volts...what you have is a "bad" ground allowing it to "float" up in voltage...first fix the ground integrity and then go from there...
 
  #19  
Old 08-09-2024 | 10:51 AM
$tonecold's Avatar
$tonecold
Thread Starter
|
Club Member
Joined: Feb 2011
Posts: 4,340
Likes: 1,866
From: Gilbert, Az.
Riders Club Member
Default

Originally Posted by bradsULtd
Any "good" ground should be at "zero" volts...what you have is a "bad" ground allowing it to "float" up in voltage...first fix the ground integrity and then go from there...
If you or anyone else knows the location of the #2 ground on the bike, please let me know. I'm sure I can probably track it down, but it would be nice to be able to go to it easily.
 
  #20  
Old 08-09-2024 | 10:59 AM
702's Avatar
702
Seasoned HDF Member
Veteran: Army
Joined: May 2018
Posts: 5,071
Likes: 6,001
From: Las Vegas
Default

Originally Posted by $tonecold
If you or anyone else knows the location of the #2 ground on the bike, please let me know. I'm sure I can probably track it down, but it would be nice to be able to go to it easily.
This is from my 2019 Touring EDM so it may not be applicable to your model year, but it's worth a look.


 


Quick Reply: Nothing When Ignition Switch is On



All times are GMT -5. The time now is 11:55 PM.