BMW Questions? Ask a BMW Repair Expert for Answers.
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
First check the terminal connection at the trailer plug to see if the terminal on the vehicle side of the trailer wiring plug is damaged or corroded in any way.If a fault is found with the terminal it will need either cleaned or replaced to correct this fault here.If this is checked and found o.k. and there is no wiring damage to the back of the trailer plug on the vehicle let me know so we can continue.
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