Code Definition

B2229 — Airbag Passenger Circuit Short to Ground - Loop #2

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

About B2229

B2229 is a generic (obd-ii standard) body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B2229 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 B2229 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

The Supplemental Restraint System (SRS) control module continuously monitors the integrity of the passenger airbag deployment loops to confirm they remain ready to fire and have no electrical faults. DTC B2229 sets when the SRS module detects that the second deployment loop (Loop #2) of the passenger front airbag is shorted to chassis ground, meaning the squib circuit has an unintended path to ground that would prevent correct firing in a crash event. Loop #2 typically corresponds to the second stage or higher force igniter on a dual stage passenger airbag, which the module fires under higher ...

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