Code Definition

B0102 (11) — Driver first step airbag squib Circuit shorted to Earth

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

About B0102

B0102 is a generic (obd-ii standard) body diagnostic trouble code recorded for Toyota vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B0102 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

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 B0102 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

DTC B0102:11 is a Toyota body code indicating that the airbag control module (ACM) has detected a short to ground in the driver first stage airbag squib circuit. The squib is the electrically fired igniter in the steering wheel airbag, and the ACM monitors its firing loop for correct resistance and for any unintended path to chassis ground. This code sets when part of the squib circuit, most often the wiring, the clock spring, or a connector, makes contact with the vehicle body or another ground path, which can compromise correct deployment control. When B0102:11 is stored the airbag warning l...

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