MasterTuning Fault code dictionary (DTC)

P1838 — Transmission Transfer Case Shift Motor Circuit Failure

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningTransmission Transfer Case Shift Motor Circuit Failure.
FamilyPowertrain (P)

Frequently asked questions

What does code P1838 mean?

Transmission Transfer Case Shift Motor Circuit Failure. Transmission Transfer Case Shift Motor Circuit Failure.

Can I keep driving with code P1838 active?

With caution: limp mode possible, have it checked soon

How do you fix code P1838?

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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