BMW X5 E53 DIY OEM Hitch Installation Notes and factory installation PDF

[JCL]

Originally Posted by subieworx

I just installed an OEM hitch and wiring last week and ever since the PDC will not work from behind. Will coding fix this?

Depends on what you mean by won't work. With no trailer connected, the rear PDC should work just like before. When a trailer is connected and plugged in to the receptacle, the rear PDC should be disabled (otherwise it would beep all the time since it thinks the trailer is a wall that you are about to back into).

If it isn't working as described above, then yes, coding can help because the vehicle software will then recognize the presence of the trailer wiring module, and function as above.