Replacing ECM

Before "Add" ECM:

Fig 1 : ECM with a previously programmed master key code, illustrated here in orange. 

Fig 1: Identifying ECM With Master Key (Orange)

Courtesy of SAAB-SCANIA OF AMERICA, INC.

During "Add" ECM:

It does not matter if the ECM unit is new (in transport mode) or used (previously "added" or "removed").

• When "Add" ECM is carried out using Tech2, the master key code is copied from CIM to ECM.
• The keys that worked previously will still be functional.

After "Add" ECM:

Fig 2 : The illustration shows the same ECM as in figure 8, but with the master key code copied from CIM, illustrated here in green. 

Fig 2: Identifying CIM With Master Key (Green)

Courtesy of SAAB-SCANIA OF AMERICA, INC.