Code Definition

B2699 — Right-Hand Headlamp Control Circuit Fault

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

About B2699

B2699 is a generic (obd-ii standard) 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.

When B2699 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

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 B2699 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

On Holden vehicles, the Body Control Module (BCM) controls and monitors the right hand headlamp through a solid state output and compares the commanded state of that output against the actual electrical feedback on the circuit. DTC B2699 is set when the BCM detects an implausible or incorrect electrical condition in the right hand headlamp control circuit, such as an unexpected voltage level, an open circuit, or abnormal current flow, for a calibrated period while the headlamp is commanded ON or OFF. The BCM uses this feedback both to confirm correct operation and to detect a bulb or LED modul...

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