Code Definition

B3924 — Wrong Environment Identifier Received From BCM

System: Body  |  Type: Manufacturer-Specific  |  Make: Holden

About B3924

B3924 is a manufacturer-specific body diagnostic trouble code recorded for Holden vehicles. 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.

B3924 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

A receiving control module monitors the environment identifier messages transmitted by the Body Control Module (BCM) to confirm the correct vehicle configuration and regional settings before enabling its features. The environment identifier tells each module which market and configuration the vehicle is built to, so that functions are enabled consistently across the network. DTC B3924 is set when the receiving module detects an environment identifier from the BCM that does not match its expected or stored configuration, indicating a configuration mismatch. When this code is set certain feature...

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