Ok my buddy has an 06 springer. Recently had a battery replacement. Non oem battery. Bike runs great when cold. After warmed up speedo drops out,turn signals malfunction and bike won't idle,stalls when stopping. Any ideas,possible tsm,tssm module? The malfunctions were there prior to battery replacement. Have not tried to retrieve any dtc's yet.

 

KISS principle is where I would start. The biggest complaint (other than those plastic cam chain followers) that happens with HD's is electrical bugs. Keep it simple rather than replacing all of those sensors, etc. You need to test the output of the stator, the ignition switch, the run/stop switch conections, etc. If you want to do the replace until it works method, get a buddy who has the same bike and borrow his stuff instead of buying new... including a different battery. Battery connections are an AMAZING source of these kinds of issues.

You can't get a break out box like the dealer has to test all of your circuits. Buy a shop manual including the electrical supplement and start there.

C#

 

Could be the EMC also.

First I'd check for codes.

 

Like they said and:

Check the battery connections, are they tight?

 

Springer fixed! Turned out to be the speed sensor on the trans.. Glad it is done. Just in time for Delmarva bike week!