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Home >> Mercedes Benz >> 2021 >> Metris Van Cargo >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments (07 Of 11) -- 447 Chassis >> Testing & Repair >> Programming Of Control Units - AR54.21-S-0014E

Programming Of Control Units - AR54.21-S-0014E

Model 447, 448 

IMPORTANT Notes on programming control units   AH54.21-P-0001-03Z
  Program with Flash Support File (support through User Help Desk)     
1 Connect diagnostic system, start "Xentry Diagnostics" (XD) and select vehicle model    
REFER TO SELF-DIAGNOSTIC SYSTEMS   NOTES
During the entire work procedure a sufficiently large voltage supply must be provided for the vehicle's on-board electrical system.
Otherwise any undervoltage that occurs may damage the control units.
IMPORTANT Communication with each control unit is established.
AD00.00-S-2000-04E
    If the power supply of the on-board electrical system as supplied by the on-board electrical system battery is too low.

Connect battery charger
AR54.10-S-1127E 
2 Program corresponding control unit IMPORTANT See process description in diagnostic system "INFO".  
3 Perform redocumentation procedure in Vehicle Documentation (VeDoc) in VeDoc screen Only after successfully programming the control unit.  
4 Perform SCN coding for each control unit Only when required, refer to XD. AR54.21-S-0015E 
5 Run teach-in procedures Only when required, refer to XD.  
6 Read out and erase fault memory    
7 Disconnect diagnostic system    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-S-2000-04E