Code Definition

B1930 — Airbag Safing Sensor Output Circuit Short To Ground

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

About B1930

B1930 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 B1930 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit; and 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.

B1930 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 acceleration sensor used by the Restraint Control Module (RCM) as a safety interlock, requiring both the main impact sensors and the safing sensor to confirm a real crash event before any airbag is allowed to deploy. DTC B1930 is set specifically when the RCM detects that the safing sensor output signal has shorted to ground, meaning the signal wire is being pulled to chassis or sensor ground potential and the module can no longer read a valid acceleration value. This is almost always a harness chafing issue where the signal wire has rubbed through its i...

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