Driver side taillight running light not work

[Furbz217]

Driver side tail light running light not working it started with it flickering and just went out, I bought a used replacement but the same problem. I went to the dealership today they gave me a few code. Just trying to see if anyone experienced this problem and maybe a area to check for the ground connection and solve this problem, TIA

 

[kapinallinen2]

Driver side tail light running light not working it started with it flickering and just went out, I bought a used replacement but the same problem. I went to the dealership today they gave me a few code. Just trying to see if anyone experienced this problem and maybe a area to check for the ground connection and solve this problem, TIAView attachment 213267

B21F9.

FUSE OPEN

FUSED B(+) CIRCUIT OPEN OR SHORTED TO GROUND

POSSIBLE CAUSES
BODY CONTROL MODULE (BCM)​

B2143.

UGDO ENABLE CONTROL CIRCUIT SHORTED TO GROUND

UNIVERSAL GARAGE DOOR OPENER (UGDO) MODULE

BODY CONTROL MODULE (BCM)

Possible Causes​

South Main Auto found corrosion in the wiring that caused trouble with a tail light.

Sometimes the copy and paste gives weird results, apologies for that.

 

[Furbz217]

B21F9.

FUSE OPEN

FUSED B(+) CIRCUIT OPEN OR SHORTED TO GROUND

POSSIBLE CAUSES
BODY CONTROL MODULE (BCM)​

B2143.

UGDO ENABLE CONTROL CIRCUIT SHORTED TO GROUND

UNIVERSAL GARAGE DOOR OPENER (UGDO) MODULE

BODY CONTROL MODULE (BCM)

Possible Causes​

South Main Auto found corrosion in the wiring that caused trouble with a tail light.

Sometimes the copy and paste gives weird results, apologies for that.

Thanks a lot it was the same problem same style bypass. Thank you sir