DTC B1-9x

DTC B1-9x (B1-90 to B1-99, B1-9A to B1-9F): Internal Failure of Roll Rate Sensor

1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator stay on, and is B1-12, B1-8x, B1-9x, B1-Ax, or B1-Bx indicated?

YES - Replace the driver's side impact sensor. If the DTC returns, replace the SRS unit.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC troubleshooting index.