DTC 85-79

DTC 85-79: OPDS Sensor Drift Check Failure

1. Make sure nothing is on the front passenger's seat.
2. Erase the DTC memory.
3. 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 85-79 indicated?

YES - Turn the ignition switch OFF, and go to step 4.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview If another DTC is indicated, go to the DTC Troubleshooting Index. Diagnostic Trouble Code Descriptions

4. Initialize the OPDS unit.
5. 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 go off and stay off?

YES - The system is OK.

NO - Replace the OPDS unit and retest. If the problem is still present, replace the OPDS sensor/seat-back foam.