Code Definition

B1928 — Airbag Safing Sensor Output Circuit Failure

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

About B1928

B1928 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1928 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.

B1928 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 airbag safing sensor is a secondary impact sensor that confirms a genuine crash event before the Restraint Control Module (RCM) is allowed to fire the airbag squibs. It works in series with the main front impact sensors so that both must agree on a real deceleration event for deployment to occur, which prevents accidental deployment from electrical faults. DTC B1928 is set when the RCM detects a general fault on the safing sensor output circuit, which can be an open, short to ground, short to voltage, or signal out of range. Some platforms locate the safing sensor inside the RCM itself whi...

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