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There is not a programmable parameter for the SJB to swap from filament to HID, nor is it needed since the SJB does not power the headlights, it just controls the coils side of the relays, so the load is not on the SJB. Below are the diagrams if needed. Can you remove the high beam relay and see if its losing the coil side power supply from the SJB when the headlights fail, if so then it is the SJB that is bad but not because of the HID conversion.
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