Code Definition

B0001 — RHF Airbag squib circuit shorted to power

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

About B0001

B0001 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 B0001 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 B0001 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 Restraints Control Module (RCM), sometimes called the Airbag Control Module (ACM), monitors the integrity of every airbag firing circuit by measuring resistance and watching for unintended voltage. B0001 is set when the module detects that the right hand front airbag squib circuit is shorted to battery voltage, meaning an unwanted power connection has been made somewhere between the module output pins and the squib itself. The squib is the small electrical initiator inside the airbag inflator that fires when the module commands deployment, and it normally sits at a controlled low voltage h...

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