MasterTuning Fault code dictionary (DTC)

4DDC — CAN message, transm. control unit signal faulty

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: BMW
MeaningCAN message, transm. control unit signal faulty.
FamilyManufacturer-native code

Frequently asked questions

What does code 4DDC mean?

CAN message, transm. control unit signal faulty. CAN message, transm. control unit signal faulty.

Can I keep driving with code 4DDC active?

With caution: limp mode possible, have it checked soon

How do you fix code 4DDC?

Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.

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Where to get it fixed

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