MasterTuning Fault code dictionary (DTC)

B1201 — Electric seat adjustment front left: Hall sensor front height M27m3

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: Mercedes-Benz
MeaningElectric seat adjustment front left: Hall sensor front height M27m3.
FamilyBody (B)

Frequently asked questions

What does code B1201 mean?

Electric seat adjustment front left: Hall sensor front height M27m3. Electric seat adjustment front left: Hall sensor front height M27m3.

Can I keep driving with code B1201 active?

With caution: limp mode possible, have it checked soon

How do you fix code B1201?

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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