hello, my rear trailer camera randomly stopped working. trying to figure out if it's a truck issue (2020 sierra 3500), or a camera issue. the other day the check engine light turned on and in the error code history report they gave me, i see the following:
Code - B399F
Description - Rear Trailer Camera Supply Circuit Short to Ground
Failure code - 02
Status - history
when first installed, the camera worked fine. i noticed it stop working when we were on the road.
Anyone know what i could check on either the truck or the camera to see where the wiring issue might be? the dealer hasn't been helpful.