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Home >> Acura >> 2005 >> TSX Automatic >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> SRS (Supplemental Restraint System) >> DTC Troubleshooting >> DTC 85-79: OPDS Sensor Initial Check Failure

DTC 85-79: OPDS Sensor Initial Check Failure

NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures (see PRECAUTIONS AND PROCEDURES  ) and General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES)  ).
  1. Clear the DTC memory (see CLEAR THE DTC MEMORY WITH THE HDS  ).
  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 85-79 indicated? 

    YES  -Turn the ignition switch OFF, and go to step 3.

    NO  -Intermittent failure, system is OK at this time. Go to TROUBLESHOOTING INTERMITTENT FAILURES  . If another DTC is indicated, troubleshoot the DTC.

  3. Make sure nothing is on the front passenger's seat.
  4. 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? 

    YES  -The system is OK.

    NO  -Go to step 5.

  5. Initialize the OPDS/ODS unit (see OPDS/ODS UNIT INITIALIZATION  ).
  6. 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? 

    YES  -The system is OK.

    NO  -Replace the OPDS/ODS unit (see OPDS/ODS UNIT REPLACEMENT  ), and retest. If the problem is still present, replace the OPDS sensor/seat-back (see FRONT SEAT COVER REPLACEMENT ). If the DTC is still present, replace the SRS unit. B