B2466 — Aux Heater Overheat Counter Overrun/System Locked

What it means

B2466 is an OBD-II diagnostic trouble code: Aux Heater Overheat Counter Overrun/System Locked.

Typical fix

Confirm the code with an OBD-II scanner, then inspect the component or circuit named above. Consult a vehicle-specific service manual for the full diagnostic and repair procedure.