MasterTuning Fault code dictionary (DTC)

P1246 — Alternator Load Input Failed

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningAlternator Load Input Failed.
FamilyPowertrain (P)

Frequently asked questions

What does code P1246 mean?

Alternator Load Input Failed. Alternator Load Input Failed.

Can I keep driving with code P1246 active?

With caution: limp mode possible, have it checked soon

How do you fix code P1246?

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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