MasterTuning Fault code dictionary (DTC)

B2466 — Aux Heater Overheat Counter Overrun/System Locked

Severity: Critical Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningAux Heater Overheat Counter Overrun/System Locked.
FamilyBody (B)

Frequently asked questions

What does code B2466 mean?

Aux Heater Overheat Counter Overrun/System Locked. Aux Heater Overheat Counter Overrun/System Locked.

Can I keep driving with code B2466 active?

With caution: limp mode possible, have it checked soon

How do you fix code B2466?

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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