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DTC 83-24: No Signal From the Front Passenger's Weight Sensor (front outer side)

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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  and, General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES)  ).
  • These SWS DTCs are cleared by turning the ignition switch to LOCK (0).
  1. Raise the front passenger's seat all the way up.
  2. Clear the DTCs with the HDS (see CLEAR THE DTC MEMORY ).
  3. Turn the ignition switch to ON (II), then wait for 10 seconds.
  4. Check for the DTCs with the HDS (see READING THE DTC  ).

    Is DTC 83-24 indicated? 

    YES  - Go to step 5

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

  5. From the HDS Main Menu, select SRS, then Inspection. In the Inspection Menu, select SWS DTC CHECK.

    Is an SWS DTC also indicated? 

    YES  -

    • DTC 24-11: Short to power in the front passenger's weight sensor (rear inner side) power circuit; replace the front passenger's seat wire harness, then clear the DTC.
    • DTC 24-12: Short to ground in the front passenger's weight sensor (rear inner side) power circuit. Go to step  6.
    • DTC 24-13: Open in the front passenger's weight sensor (rear inner side) output circuit. Go to step  14.
    • DTC 24-14: Short to ground in the front passenger's weight sensor (rear inner side) output circuit. Go to step  23.

    NO  -Intermittent failure, the system is OK at this time. Go to TROUBLESHOOTING INTERMITTENT FAILURES  .

  6. Turn the ignition switch to LOCK (0).
  7. Disconnect the front passenger's weight sensor (front outer side) 3P connector (A) on the ODS unit harness.
    Fig 1: Identifying Front Passenger's Weight Sensor 3P Connector (Front Outer Side)
    G00510704Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Turn the ignition switch to ON (II), then wait for 10 seconds.
  9. Check for the DTCs with the HDS (see READING THE DTC  ).

    Is SWS DTC 24-12 indicated? 

    YES  -Go to step 10

    NO  -Faulty front passenger's weight sensor (rear inner side); replace the front passenger's seat rail including all four front passenger's weight sensors (see FRONT PASSENGER'S WEIGHT SENSOR REPLACEMENT  ), then clear the DTC.

  10. Turn the ignition switch to ON (II).
  11. Disconnect the ODS unit 18P connector (A) from the ODS unit.
    Fig 2: Identifying ODS Unit 18P Connector
    G00510689Courtesy of AMERICAN HONDA MOTOR CO., INC.
  12. Measure the resistance between body ground and ODS unit 18P connector terminal No. 5.
    Fig 3: Measuring Resistance Between ODS Unit 18P Connector Terminal No. 5 And Body Ground
    G00510705Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there an open circuit, or at least 1 MΩ ? 

    YES  -Go to step 13.

    NO  -Short to ground in the ODS unit harness; replace the ODS unit harness, then clear the DTC.

  13. Measure the resistance between ODS unit 18P connector terminals No. 5 and No. 15.
    Fig 4: Measuring Resistance Between ODS Unit 18P Connector Terminals No. 5 And 15
    G00510706Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there an open circuit, or at least 1 MΩ ? 

    YES  -Faulty ODS unit; replace the ODS unit (see ODS UNIT REPLACEMENT  ), then clear the DTC.

    NO  -Short to another wire in the ODS unit harness; replace the ODS unit harness, then clear the DTC.

  14. Turn the ignition switch to LOCK (0).
  15. Swap the connections between the front outer side front passenger's weight sensor and the rear outer side sensor.
  16. Turn the ignition switch to ON (II), then wait for 10 seconds.
  17. Check for the DTCs with the HDS (see READING THE DTC  ).

    Is DTC 24-13 indicated? 

    YES  -Go to step 18

    NO  -Faulty front passenger's weight sensor (front outer side); replace the front passenger's seat frame including all four front passenger's weight sensors, then clear the DTC. (See FRONT SEAT REMOVAL/INSTALLATION ).

  18. Turn the ignition switch to LOCK (0).
  19. Disconnect the front passenger's weight sensor (front outer side) 3P connector (A) and the front passenger's weight sensor (rear outer side) 3P connector (B) on the ODS unit harness.
    Fig 5: Identifying ODS Unit Wiring Harness And Front Passenger's Weight Sensors Connectors (Front & Rear Outer Side)
    G00510707Courtesy of AMERICAN HONDA MOTOR CO., INC.
  20. Disconnect the ODS unit 18P connector (A) from the ODS unit.
    Fig 6: Identifying ODS Unit Wiring Harness 18P Connector
    G00510693Courtesy of AMERICAN HONDA MOTOR CO., INC.
  21. Turn the ignition switch to ON (II).
  22. Measure the voltage between body ground and ODS unit 18P connector terminal No. 10.
    Fig 7: Measuring Voltage Between Body Ground And ODS Unit 18P Connector Terminal No. 10
    G00510708Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there an open circuit, or at least 1 MΩ ? 

    YES  -Faulty ODS unit; replace the ODS unit (see ODS UNIT REPLACEMENT  ), then clear the DTC.

    NO  -Short to power in the ODS unit harness; replace the ODS unit harness, then clear the DTC.

  23. Turn the ignition switch to LOCK (0).
  24. Disconnect the front passenger's weight sensor (front outer side) 3P connector (A) on the ODS unit harness.
    Fig 8: Identifying Front Passenger's Weight Sensor 3P Connector (Front Outer Side)
    G00510704Courtesy of AMERICAN HONDA MOTOR CO., INC.
  25. Turn the ignition switch to ON (II), then wait for 10 seconds.
  26. Check for the DTCs with the HDS (see READING THE DTC  ).

    Is DTC 24-14 indicated? 

    YES  -Go to step 27

    NO  -Faulty front passenger's weight sensor (front outer side); replace the front passenger's seat frame including all four front passenger's weight sensors, then clear the DTC. (See FRONT SEAT REMOVAL/INSTALLATION ).

  27. Turn the ignition switch to LOCK (0).
  28. Disconnect the ODS unit 18P connector (A) from the ODS unit.
    Fig 9: Identifying ODS Unit Wiring Harness 18P Connector
    G00510693Courtesy of AMERICAN HONDA MOTOR CO., INC.
  29. Measure the resistance between body ground and ODS unit 18P connector terminal No. 10.
    Fig 10: Measuring Resistance Between Body Ground And ODS Unit 18P Connector Terminal No. 10
    G00510709Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there an open circuit, or at least 1 MΩ ? 

    YES  -Go to step 30

    NO  -Short to ground in the ODS unit harness; replace the ODS unit harness, then clear the DTC.

  30. Measure the resistance between ODS unit 18P connector terminals No. 10 and No. 15.
    Fig 11: Measuring Resistance Between Body Ground And ODS Unit 18P Connector Terminal No. 10 And No. 15
    G00510710Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there an open circuit, or at least 1 MΩ ? 

    YES  -Faulty ODS unit; replace the ODS unit (see ODS UNIT REPLACEMENT  ), then clear the DTC.

    NO  -Short to another wire in the ODS unit harness; replace the ODS unit harness, then clear the DTC.

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