Code Definition

B2444 — Driver Side Crash Sensor Internal Fault

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

About B2444

B2444 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.

When B2444 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

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 B2444 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

The B2444 code indicates the Restraint Control Module (RCM) has detected an internal fault within the driver side crash sensor. Side crash sensors contain an internal accelerometer or pressure transducer along with self diagnostic circuitry that reports component health back to the RCM during each ignition self test cycle. This code sets when the sensor reports an internal failure such as a transducer element fault, internal memory error, calibration data corruption, or a failed power on self test result. When this fault is active, the SRS warning light illuminates and the side and curtain air...

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