Replacing CIM with a used CIM

Before "Add" CIM:

Figure 14: A used CIM with a master key code, illustrated here in pink. The keys are used and therefore also have the pink master key code. ECM has a previously programmed master key code, illustrated here in green. 

Fig 1: Identifying CIM, ECM And Keys - Before "Add" CIM

Courtesy of SAAB-SCANIA OF AMERICA, INC.

During "Add" CIM:

At least one key that "belongs" to the fitted CIM must  be used.

• When "Add" CIM is carried out using Tech2, the master key code is copied from CIM to ECM. This means that the "old" key code copy in ECM is overwritten.
• When programming the keys, Tech2 asks if you wish to skip key programming.
  • Answer "Yes" to skip key programming and keep the existing old keys that belong to the CIM that was fitted.
  • Answer "No" to reprogram old and new keys.
• The keys that worked previously will no longer be functional. They were previously "added" to the CIM unit that was removed.
• The keys that belong to the fitted CIM unit must be used.

After "Add" CIM:

Figure 15: The illustration shows the same CIM and ECM as in  Fig 1 , with the master key code copied from CIM to ECM. 

Fig 2: Identifying CIM, ECM And Keys - After "Add" CIM

Courtesy of SAAB-SCANIA OF AMERICA, INC.