MasterTuning Fault code dictionary (DTC)

P1643 — Engine control module Incorrect coding AT coded has MT,fault in CAN of ETC

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: Mercedes-Benz
MeaningEngine control module Incorrect coding AT coded has MT,fault in CAN of ETC.
FamilyPowertrain (P)

Frequently asked questions

What does code P1643 mean?

Engine control module Incorrect coding AT coded has MT,fault in CAN of ETC. Engine control module Incorrect coding AT coded has MT,fault in CAN of ETC.

Can I keep driving with code P1643 active?

With caution: limp mode possible, have it checked soon

How do you fix code P1643?

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.

Need help with this fault?

We are ECU specialists: diagnosis, file repair and remapping for cars, bikes, trucks and agricultural vehicles.

Contact us
Where to get it fixed

Related codes