MasterTuning Fault code dictionary (DTC)

U0111 — Lost Communication With Battery Energy Control Module "A"

Severity: Serious Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningLost Communication With Battery Energy Control Module "A".
FamilyNetwork (U)

Frequently asked questions

What does code U0111 mean?

Lost Communication With Battery Energy Control Module "A". Lost Communication With Battery Energy Control Module "A".

Can I keep driving with code U0111 active?

With caution: limp mode possible, have it checked soon

How do you fix code U0111?

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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