B1B03 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1B03 – Driver Airbag Squib 1 Circuit Shorted Together
B1B03 Possible Symptoms
Air Bag Warning Light ON
B1B03 Possible Causes
Faulty Driver Airbag Squib 1,Driver Airbag Squib 1 harness is open or shorted,Driver Airbag Squib 1 circuit poor electrical connection,Faulty Driver Airbag,Faulty Steering Comun Control Module (Clockspring),Faulty Occupant Restraint Controller (ORC)
When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. These circuits are maintained in a “floating” configuration at the module (connected to neither power nor ground) as protection against inadvertent deployment. The use of the SRS Load Tool Adapter provides a test point as well as a method for opening the shorting bar connections within the harness connector. The Clockspring is part of the Steering Column Control Module (SCCM). The SCCM includes the steering column shroud, the Steering Angle Sensor (SAS), the Clockspring, the Multi-function Switch, a Steering Column Power Tilt and Telescope Switch (if equipped), and a trim cover. The SCCM is replaced as an entire assembly. The ORC sends out a 40 mA diagnostic current on each squib voltage supply circuit at power up and every 500 ms thereafter while the ignition is on.