DTC Troubleshooting: 42-Bx

DTC 42-Bx (42-B0 to 42-B9, 42-BA to 42-BF):Internal Failure of the Right Front Impact 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 DTC 42-Bx indicated?


YES - Replace the right front impact sensor. If the DTC returns, replace the SRS unit.n


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.