A special function used to back up and restore the configuration data of the supported control units: you can read the conf data of several units and write it back. It is your insurance against a sudden loss of power during an on-car procedure.
Required licences
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Hardware / cables
AVDI
⚠ WarningALWAYS read and save the configuration data to file before starting any job: if the voltage drops mid-procedure, that saved file is the only way to put the module right again.
Procedure
Connect the AVDI to the OBD-II socket and feed the vehicle from an external power supply.
Open the "Special functions" tab and select "Read/Update ConfData".
From the special function's drop-down menu choose the module to work on: supported modules include the BSI units and instrument clusters, most of which can be picked straight from that list.
Read the module's configuration data and save it to file, using a name that identifies vehicle, module and date.
Repeat the read-and-save for every unit you intend to touch during the job: the function lets you read the conf data of multiple modules.
When a restore is needed, load the previously saved file from the same screen and write it to the unit.
The same "Read/Update ConfData" menu is also used to read and update the flash of the Built-in System (BSI) module.
Once restored, check that the module works and read/clear any DTCs generated during the operation.
Reference screenshots
Source: Manuale Peugeot/Citroën (interfaccia classica), cap. 3.3 (p.16) e cap. 3.4.1 (p.22) · ⏱ estimated time 15-30 min