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GM Trailer Camera

jhcfc
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jhcfc New Member

jhcfc

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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. 

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