Code Definition

B3980 — Incorrect Immobiliser Identifier Received

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

About B3980

B3980 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.

B3980 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 Body Control Module (BCM) or Theft Deterrent Module validates the immobiliser identifier exchanged between authorised security components during ignition on and engine start on this Holden. DTC B3980 is set when an immobiliser identifier message is received that does not match the stored or expected identifier, indicating a security identification mismatch that prevents correct immobiliser authorisation. The identifier must agree across the BCM, immobiliser, and engine controller for the start to be authorised, so the fault usually reflects programming, data corruption, or a communication ...

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