Code Definition

B3929 — Wrong Environment Identifier Received

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

About B3929

B3929 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.

B3929 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

The receiving control module monitors environment identifier data transmitted over the vehicle communication network to confirm the correct vehicle configuration and regional setup. DTC B3929 is set when the module detects an environment identifier that does not match the expected or stored configuration parameters, indicating a configuration or programming mismatch. The environment identifier defines build specific options and regional settings that multiple modules rely on to operate correctly, so a mismatch commonly follows module replacement or reprogramming. When this code is set, affecte...

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