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Home >> Acura >> 2013 >> TL Base >> Repair and Diagnosis >> Restraints >> Air Bag, 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, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components, of the correct part number, and that they were properly installed (see COMPONENT REPLACEMENT/INSPECTION AFTER DEPLOYMENT  ).
  • Before doing this troubleshooting procedure, review SRS Precautions and Procedures (see PRECAUTIONS AND PROCEDURES  ) and General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION  ).
  • Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software (see SRS UNIT UPDATE  ), and retest.
  • These DTCs are codes that relate to the ODS unit operation.
  1. Clear the DTCs with the HDS (see HOW TO CLEAR DTCS  ).
  2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, then wait for 10 seconds.
  3. Clear the DTCs with the HDS (see HOW TO CLEAR DTCS  ).

    Is DTC 85-79 indicated? 

    YES  - Go to step 4.

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

  4. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  5. Make sure nothing is on the front passenger's seat.
  6. Clear the DTCs with the HDS (see HOW TO CLEAR DTCS  ).
  7. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, then wait for 10 seconds.
  8. Clear the DTCs with the HDS (see HOW TO CLEAR DTCS  ).

    Is DTC 85-79 indicated? 

    YES  - Go to step 9.

    NO  - The system is OK at this time.

  9. Clear the DTCs with the HDS (see HOW TO CLEAR DTCS  ).
  10. Do the ODS unit initialization (see ODS UNIT INITIALIZATION  ).
  11. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, then wait for 10 seconds.
  12. Clear the DTCs with the HDS (see HOW TO CLEAR DTCS  ).

    Is DTC 85-79 indicated? 

    YES  - Replace the ODS unit (see ODS UNIT REPLACEMENT  ), then clear the DTC, and retest. If the DTC is still present, replace the seat-back cover/pad equipped with an OPDS sensor (see FRONT SEAT-BACK COVER REPLACEMENT ), then clear the DTC, and retest. If the DTC is still present, replace the SRS unit (see SRS UNIT REPLACEMENT  ).

    NO  - The system is OK at this time.

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