MasterTuning Fault code dictionary (DTC)

P1781 — 4X4 Switch Out of Self Test Range

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
Meaning4X4 Switch Out of Self Test Range.
FamilyPowertrain (P)

Frequently asked questions

What does code P1781 mean?

4X4 Switch Out of Self Test Range. 4X4 Switch Out of Self Test Range.

Can I keep driving with code P1781 active?

With caution: limp mode possible, have it checked soon

How do you fix code P1781?

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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