Code Definition

B2225 — Front Crash Sensor Mount Fault

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

About B2225

B2225 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 B2225 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 B2225 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 Supplemental Restraint System (SRS) control module monitors the mounting integrity and electrical interface of the front crash sensors that detect frontal collision events. DTC B2225 sets when the SRS module detects that a front crash sensor is not properly secured, has lost its expected mechanical reference, or is reporting bias data inconsistent with a correctly mounted sensor at rest. Front crash sensors are accelerometer based sensing devices mounted to the radiator support, bumper beam, or front frame rails, and they communicate impact data to the SRS module on a dedicated digital lin...

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