B1811 LEXUS, TOYOTA, SCION: OPEN IN DRIVER SIDE SQUIB 2ND STEP CIRCUIT
Description of DTC code B1811
The driver-side squib 2nd step circuit has several components. For example, the center airbag sensor assembly, coiled cable, and a steering pad. The purpose of this circuit is to send signals to the SRS (Supplemental Restraint System) to be used when conditions are met.
When the B1811 OBDII fault code is set on Scion, Lexus, and Toyota vehicles, it means a fault was detected in the driver’s side Squib second pass circuit.