Is it difficult to correct odometer for Peugeot/Citroen by OBDSTAR X300 DP Plus ? How to adjust OBD and BSI separately ?   No, it ’ s easy to do if you follow the instructions as below.   Something important to know: 1. During the mileage adjustment process, ensure   that the power is sufficient and the voltage is stable; 2.Before performing the adjustment, you must   read and save the instrument and BSI data (EEPROM and FLASH)  firstly.   Adjust mileage for both dashboard and BSI via OBD: Step 1: Turn on the ignition  switch Step 2: Adjust the instrument mileage through OBD firstly. After the adjustment is successful, unplug  the instrument fuse immediately (please make sure the fuse position before adjustment) Step 3: Then adjust BSI mileage via OBD. After the adjustment is successful, don’t  turn off the ignition switch, disconnect the battery cathode, and wait for 5 minutes S t ep 4: Connect the battery cathode, enter EEPROM backup functi...