Code Definition

B2477 — Module Configuration Failure

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

About B2477

B2477 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 B2477 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

DTC B2477 is set when the Body Control Module (BCM) detects that one or more vehicle option configuration parameters stored in its memory are missing, corrupted, or do not match the expected configuration for the vehicle. Modern vehicles use module configuration data (often called as built, car configuration, or VIN configuration) to enable or disable features such as power locks, alarm system, lighting options, and tire pressure monitoring based on the original vehicle build. When this code is set, the BCM is unable to perform some of its functions correctly because it does not know what equi...

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