So was riding a few weeks ago on a 300 mile ride. About 2 miles from home, my abs, check engine and security light starting going on and off. Then all gauges turned off and then radio turned off. Revved the engine and they came back on. All this time motor running fine and strong. Got the 2 B codes listed below. I Also had a ton of U codes for lost communication with BCM, ECM, ABS....etc... This is a 2015 road glide special that has the ness risers and gauge relocation on them. They have been on for months with no issues. I totally rewired the bars with new wires and a brand new TBW as well as new left and right control packs. I replaced the BCM. Now the bike turns on, the fuel pump primes and all the gauges turn on. They stay on for like 3 seconds and then shutoff but headlight, taillight and turn signals work. No idea where to go next here. Battery and connections are good, stator is 3 months old. Could the ECM be bad? I doubt it as I assume I would have had motor issues but the bike was running perfect. Also checked the main grounds. Any tips on what to check next would be greatly appreciated. At a loss here and don't want to keep dumping money into guesses. Could the speedo be bad?

B2206 Run/stop switch input open/shorted high
B2274 Constant battery line error



Thanks.

 

" I totally rewired the bars with new wires and a brand new TBW as well as new left and right control packs. I replaced the BCM. Now the bike turns on, the fuel pump primes and all the gauges turn on. They stay on for like 3 seconds and then shutoff but headlight, taillight and turn signals work. No idea where to go next here. Battery and connections are good, stator is 3 months old."

Can you check for DTC's?

I would inspect all the connectors looking for damaged pins or pins that may have been pushed back.

Are you sure the battery is good? Hook a meter to it and with bike in neutral, jump the starter and see what the voltage drops to.

 

You say you changed the BCM did you get HD or an Indy to "marry" the BCM to the bike? If not nothing is going to happen.

 

The problem is that I can't get the bike to stay on long enough to have the technoresearch software connect. Bike comes on fully for about 5 seconds and then everything shuts off except headlights, tail lights and turn signals.

 

Did you run the tests for the DTC's before you replaced the Hand Control modules and BCM?

 

Check your fuses, wires at the fuse block and contact points for burnt spots.
Sounds like a connection is failing under load.

 

What tests?

 

The ones in the Electrical Diagnostic Manual.

Go to this Facebook group and join, then click on files and search 2015. Scroll down and download the EDM.

Here's a few pages










FB Group