I have a 2010 CTSV, my right turn signals flash fast as if a bulb is out but all lights are working.

My diagnostic tool is showing my right rear taillight “right rear turn signal bulb out feedback” as active.

i have swapped my left and right taillights but the problem stayed with the right.

can anyone tell me what the BCM is looking for as far as a feedback signal. And if possible does anyone have any schematics for the right rear taillight.

Thanks

I have managed to get the turn signal to flash normal by pulling the BCM 4 10 amp fuse. Does anyone know what this fuse goes to?

thanks

Body Control Module

I figured that much, but what circuit does it feed is the information I’m looking for!!

The manual literally says that the "BCM 4" fuse goes to "Body Control Module 4" . Maybe someone will chime in with more information and/or a wiring diagram.

Personally, I wonder if there isn't a wiring issue between the plug and the BCM.