Code Definition

B0112 (41) — RH side airbag squib Circuit shorted to Earth

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

About B0112

B0112 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 B0112 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 B0112 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 B0112:41 is a Toyota body code that sets when the airbag sensor assembly, also called the SRS ECU, detects a short to ground in the right hand (RH) side airbag squib circuit. The squib is the electrically fired igniter in the RH side or curtain airbag, and the SRS ECU monitors the firing loop resistance and voltage so it can fire the airbag in a side impact. The Toyota sub code 41 identifies the fault as a short to ground, meaning one of the squib conductors has found an unintended path to the chassis, usually through a chafed harness, a pinched wire, or contamination in a connector. When ...

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