B1B70 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1B70 – Up-Front Left Satellite Acceleration Sensor Internal

 

B1B70 Possible Symptoms

 

Air Bag Warning Light ON

 

B1B70 Possible Causes

 

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

 

B1B70 Description

 

Two front impact sensors are used on vehicles equipped with dual front airbags, one left side and one right side. One sensor is located on the back side of each vertical member of the radiator support. The impact sensors perform their own self test using power supplied by the Occupant Restraint Controller (ORC) then communicate 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.