RFA 7S7T-19G481-CA

[Gwe89]

Sucsesfully programmed my 7S7T-19G481-CA RFA to version 7S7T-19G481-CE now it allows one touch start

[Gwe89]

Ucds vbf files

[Gwe89]

One thing I have not done is programmed it when the RFA was coded to the car and keys so I dont know if it will loose the keys I will test on xmas holiday as I can program my keys back if it loses them

[peter]

everyone is afraid to program RFA. After programming RFA, did you have to program the keys?

[Go4IT]

Sucsesfully programmed my 7S7T-19G481-CA RFA to version 7S7T-19G481-CE now it allows one touch start

My notes on this:
1.) What you talking about is not the RFA it is the KVM... the RFA is only the receiver part for the key.
2.) You will need at least -CB to have this functionality
3.) Your ECM must also support this feature (don't know which version it must be, FL cars seem to have it all)
4.) A setting needs to be changed in the CCC
5.) It has no effect on the keys, because the keys are programmed with the BCM and ECM, KVM has nothing to do with it.
All this could be found in my Wiki here: https://mk4-wiki.denkdose.de/en/artikel ... eren/start

[DGAlexandru]

Actually, in KeyLess, KVM / RFA module (Keyless Vehicle Module or Remote Function Actuator - I'm 95% sure that even in IDS they switch the name constantly in order to mess with our minds) is connected to the Remote Receiver, BCM doesn't read the keys by Radio Frequency at all.
BCM is back-up only for the Transceiver that can be read by placing the key near the Steering Colun, in that special place.

I had updates that didn't need to reprogram Keys and updates that didn't recognised the Keys any more and I had to put the Key in the Back-up Slot in order to be able to start the car; then erase the Keys and add them back.

*CB and *DB can be updated to *CE / *DE.. but there are some CB/DB cars that have an older type of Steering Column Lock device that won't be able to talk any more with the updated version, so this should be replaced also, as there is no update for them.

CA / DA has different hardware, the same as A* and B* (early models)

I didn't encounter a PCM (ECM) that couldn't support this on Mondeo 4 PreFaceLift or FL.

Yes, CCC needs to be updated with the coresponding settings.

You can also move from SingleChannel Keys to MultiChannel Key and activate this "Auto Start" or "Soft Start" feature - here for sure you need to program the new keys.

[avladimir]

Well, the short answer is: "it depends". If you are using the teardrop shaped keys, you can have AutoStart after configuring CCC and updating the RFA (KVM) to a later calibration/software. Not possible with the old, square keys, and a word of caution, as DGAlexandru well said: these cars will also have first generation ESCL, which does not play nice with the newer calibrations.
As I saw during updates there is a 50/50 chance for reprogramming the keys, I didn't figured out the reason why just yet.
On a keyless car the RFA is the module responsible for the keys, as the antennas and the transceiver are directly connected to the RFA/KVM module: the BCM is acting only as a bridge for the IRX LIN and power. In this configuration, the BCM is only involved on the start of the car and the lock/unlock functions are actually commanded via CAN by the RFA/KVM.

[Gwe89]

How come when you poll RFA you get the part number for that module with all the plugs in it

[Gwe89]

Well, the short answer is: "it depends". If you are using the teardrop shaped keys, you can have AutoStart after configuring CCC and updating the RFA (KVM) to a later calibration/software. Not possible with the old, square keys, and a word of caution, as DGAlexandru well said: these cars will also have first generation ESCL, which does not play nice with the newer calibrations.
As I saw during updates there is a 50/50 chance for reprogramming the keys, I didn't figured out the reason why just yet.
On a keyless car the RFA is the module responsible for the keys, as the antennas and the transceiver are directly connected to the RFA/KVM module: the BCM is acting only as a bridge for the IRX LIN and power. In this configuration, the BCM is only involved on the start of the car and the lock/unlock functions are actually commanded via CAN by the RFA/KVM.

Yes I thought lock and unlock function is commanded by the RFA because I have the lock and unlock can data, previously before fitting keyless entry i made a bluetooth ble lock unlock,

[Go4IT]

Yes, the KVM do this. The motors and sensors are connected to this module. But the key-ID itself is not stored therein. They come from BCM/PCM and BCM is commanding the KVM to lock/unlock the doors.

P.S.: For readability please only quote what is necessary to get the context where you answer to. Mostly only one sentence is enought. Mostly nothing is needed.