B1B73 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1B73 – Left Side Satellite Acceleration Sensor 2 Internal


B1B73 Possible Symptoms


Air Bag Warning Light ON


B1B73 Possible Causes


Faulty Left Side Impact Sensor 2,Left Side Impact Sensor 2 harness is open or shorted,Left Side Impact Sensor 2 circuit poor electrical connection,Faulty Occupant Restraint Controller (ORC)


B1B73 Description


The Left Side Impact Sensor 2 is located in the C-pillar area just past the 2nd row doors. The impact sensors perform their own self-test using power supplied by the Occupant Restraint Controller (ORC) then communicates this status back to the ORC with periodic updates. The impact sensor performs a self test for internal circuitry at power up during the initialization process, and continuously through the ignition cycle every 10 ms.