Code Definition

B0111 (44) — RH side airbag squib Circuit open

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

About B0111

B0111 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 B0111 is stored, the module has detected an open (broken or disconnected) electrical path 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 B0111 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 B0111:44 is a Toyota body code that sets when the airbag sensor assembly, also called the SRS ECU, detects an open circuit or high resistance in the right hand (RH) side airbag squib deployment loop. The squib is the electrically fired igniter in the RH side or curtain airbag, and the SRS ECU constantly measures the loop resistance so it can fire the airbag in a side impact. The Toyota sub code 44 identifies the fault as an open, meaning the resistance across the squib wires has risen above the allowed threshold, typically from a disconnected connector, a broken or corroded wire, or spread...

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