B1861 SCION, LEXUS, TOYOTA: DRIVER'S SIDE KNEE AIRBAG CIRCUIT OPEN
POST UPDATED IN February, 2023
B1861 SCION, LEXUS, TOYOTA: DRIVER'S SIDE KNEE AIRBAG CIRCUIT OPEN
The Knee Airbag circuit is composed of the Center Airbag Sensor group and the Side Knee Airbag group. This circuit has the function of instructing the SRS (Supplemental Restraint System) to deploy after the conditions for such action are met.
The B1861 OBD2 diagnostic code setting occurs when a problem is detected in the driver’s knee airbag circuit. The code specifically indicates that an open circuit has been detected.
The reasons for storing the B1861 OBDII fault code are as follows
To troubleshoot DTC B1861 OBD2 consider the following: