FAQ - BCM will not learn bypass kit transponder.

Question

Problem:

The installer is unable to program the bypass kit's onboard transponder into the vehicle's BCM (Body Control Module).

 

In the majorority of these cases the remote starter timing is not fast enough to enable the vehicle's ignition and the bypass kit's transponder output so the vehicle's BCM times-out in the middle of the installation programming procedure.

 

Solution:

The vehicle and bypass kit will need to be 'hot-wired' near the end of the programming sequence in order to enable the Bypass kit's output before the BCM times-out. In most cases (referring to most bypass kit programming procedure) once the second key has been removed the vehicle's ignition will need to be powered up and the bypass kit's ground-out-while-running input will need to be grounded. In some cases the vehicle's 2nd ignition or accessory wire will also need to be powered up and furthermore on very select few models the key sense wire will also need to be grounded.

Answer 1

or like on fords the bcm is disable and you need a scan tool to enable spare key

Comments

I work at a Ford dealer and pretty much thats all I do is Fords. I have not once come across a vehicle with key programming locked out. Not ever. Never ever. Not new deliveries right from Ford, nor used vehicles from elsewhere.

 

I have had other shops in town think they had that problem. They come to me and we check the BCM, and key programming is indeed unlocked and the key slots are not all full.

Although it is indeed a possibility, installer error is by far the most likely scenario.

 

Granted maybe I should lock out all of them when they are here to screw the other installers over and drive more business my way!   ;)

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The only vehicles i have come across with key programming locked is on 2013 model edge's

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i also work at a ford dealer and i have seen 2013-15 focus be locked up