Code Definition

B2467 — Aux Heater Cool Down Time Exceeded (may be con to a453-5 )

System: Body  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About B2467

B2467 is a generic (obd-ii standard) body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

Because B2467 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

After the auxiliary heater receives a stop command, the control module executes a cool down sequence where the fuel supply is shut off but the combustion blower continues to run to purge residual fuel vapours and dissipate heat from the burn chamber. DTC B2467 sets when this cool down phase exceeds the manufacturer specified maximum time, indicating the heater body temperature did not fall below the safe threshold within the expected duration. This points to continued combustion after fuel shut off, ineffective blower purging, or a temperature sensor reading higher than actual conditions. When...

Join TaT to view the complete code information and diagnostic details.

Quick Facts