Does anyone know why I have Turn Output Fault Engine Codes (See below):
B1121 Left Turn Output Fault
B1122 Right Turn Output Fault

I checked for codes on my 2006 Dyna Wide Glide and the above came up.
Both my turn signals are working.
I believe these codes are remanants from the prior owner, who changed the turn lights from the stock units to the Skull type.

Any thoughts?
Bob Nisbet

 

Are your signals LED or incandescent lights? If you are using LEDs you may need to add a load equalizer to keep your ECM happy.