This DTC is indicated when a SRS unit update is not completed properly.

Do not turn the ignition switch to ACC (I) or to LOCK (0) while updating the SRS unit. If you turn the ignition switch to ACC (I) or to LOCK (0) before you complete the SRS unit update procedure, the SRS unit can be damaged.

Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.