B2428 — A/C Post Heater Sensor #2 Circuit Failure

What it means

B2428 is an OBD-II diagnostic trouble code: A/C Post Heater Sensor #2 Circuit Failure.

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.