Tach dead?
Thread Starter
|
Seasoned HDF Member
Joined: Nov 2016
Posts: 5,801
Likes: 809
From: South Carolina
Tach dead?
Not that I really use it but it's nice knowing that it works.
Went for the first real ride of the year, looked down and the tach was not working? So I finished my ride, parked the bike and did some quick trouble searching .. There is power to the tach as when bumping the key it does spike
So I then broke out trusty manual and it only tells me how to Unhook and reinstall it. Nothing elas..
Any thought please...
As I said I do not use it for anything other than cosmetic as I shift by sound and feel.
Went for the first real ride of the year, looked down and the tach was not working? So I finished my ride, parked the bike and did some quick trouble searching .. There is power to the tach as when bumping the key it does spike
So I then broke out trusty manual and it only tells me how to Unhook and reinstall it. Nothing elas..
Any thought please...
As I said I do not use it for anything other than cosmetic as I shift by sound and feel.
Outstanding HDF Member
Joined: Feb 2015
Posts: 2,414
Likes: 433
From: Arkansas
Tach signal comes from the ECU, check the SIP for the wire diagrams: https://serviceinfo.harley-davidson....cle/lookupForm
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,071
Likes: 1,006
unfortunately, you can only test it with the hd scanner. but if you have equipment such as a power supply and signal generator, it can be tested that way.
check for power on tach terminal #1 check ground on #2 and check signal in from #3 to ecu tach output pin #3 should be pink wire.
check for power on tach terminal #1 check ground on #2 and check signal in from #3 to ecu tach output pin #3 should be pink wire.
Seasoned HDF Member
Joined: Jul 2008
Posts: 9,282
Likes: 1,139
From: southeast PA
The tach I installed on my Street Bob a few years ago started to act up. I pulled it off and tightened the 2 connections. Now it works fine. Not saying this is your problem but it's where I would start.
Thread
Thread Starter
Forum
Replies
Last Post
