MasterTuning Fault code dictionary (DTC)

P1666 — cutoff control

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: Mercedes-Benz
Meaningcutoff control.
FamilyPowertrain (P)

Frequently asked questions

What does code P1666 mean?

cutoff control. cutoff control.

Can I keep driving with code P1666 active?

With caution: limp mode possible, have it checked soon

How do you fix code P1666?

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