help please Ford S-Max 2012

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7up
Posts: 3
Joined: Wed May 12, 2021 2:54 pm
Vehicle: Ford S-MAX 2.0 2012

help please Ford S-Max 2012

Post by 7up »

Ford s-max 2012 proxy key
I`ve replaced the BCM, I read the old BCM using forscan and write the file to the new BCM. But now i have problems with the key "proxy key" , the key will lock and unlock the car via remote when i press the start button the dash will light up and take the steering lock off. But the engine wont crank and says on the dash key not detected ??? If i put the key out side of the car and press the start button nothing happens, so the car must be seeing the key for the dash too light up when the key is in side of the car. Put the old BCM back in and the keys work fine.

Things i`ve tried.
Deleting Keys and reading them, Two Keys
Help please Thank you.
Ecmbuster
Posts: 937
Joined: Sun Mar 15, 2015 4:08 am
Vehicle: Volvo Bertone and two Motorcyles
Location: On a spinning rock

Re: help please Ford S-Max 2012

Post by Ecmbuster »

The BCM is new? is it used?
What are the part numbers for the new / used / OEM BCM?
Why did you replace the BCM?
What faults were recorded with the original and replacement?
Do not ask for help in PM. Use the forum to ask and answer questions!
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