Execute actuator tests and module adaptations, though certain online telecoding functions for vehicles newer than 2016 may still require official PSA server access.
View live data parameters and sensor readings to pinpoint intermittent issues.
Mateo remembered a trick from an old Russian forum: disconnect the CAN bus from the gateway, manually ground pin 4 on the OBD, and run the adaptation in “offline fallback mode.” It was insane. It might fry the TCU.