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Home >> Acura >> 2005 >> TSX Automatic >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> SRS (Supplemental Restraint System) >> Symptom Troubleshooting >> SRS indicator stays on, but no DTCs are stored

SRS indicator stays on, but no DTCs are stored

NOTE:
  • If you cannot retrieve DTCs with the HDS using the SRS menu method, retrieve flash codes with the HDS in SCS mode.
  • A new SRS unit must sense the entire system is OK before completing its initial self-test. The most common cause of an incomplete self-test is the failure to replace all deployed parts after a collision, in particular seat belt tensioners (see COMPONENT REPLACEMENT/INSPECTION AFTER DEPLOYMENT  ).
  • A battery/system voltage above 15.2 V can cause the SRS indicator to come on without storing any DTCs.
  1. Disconnect the negative cable from the battery, then wait for 3 minutes.
  2. Disconnect SRS unit connector A (28P) from the SRS unit (see step  7 ).
  3. Remove the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ). Disconnect gauge control module connector B (18P) from the gauge control module.
    Fig 1: Identifying Gauge Control Module 18P Connector
    G05489778Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Measure the resistance between the No. 7 terminal of gauge control module connector B (18P) and the No. 19 terminal of SRS unit connector A (28P). There should be 1 Ω or less.
    Fig 2: Measuring Resistance Between Gauge Control Module Connector B (18P) And SRS Unit Connector A (28P) Terminals
    G05489779Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is the resistance as specified? 

    YES  -Go to step 5.

    NO  -Open in the dashboard wire harness; replace the dashboard wire harness.

  5. Reconnect the negative cable to the battery.
  6. Reconnect gauge control module connector A (18P) to the gauge control module.
  7. Turn the ignition switch ON (II).
  8. Install a jumper wire between the No. 7 terminal and the No. 10 terminal of the gauge control module connector B (18P). The SRS indicator should go off.
    Fig 3: Identifying Gauge Control Module Connector B (18P)
    G05489780Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Does the SRS indicator go off? 

    YES  -Faulty SRS unit or poor connection at SRS unit connector A (18P) and the SRS unit; check the connection. If the connection is OK, replace the SRS unit (see SRS UNIT REPLACEMENT  ).

    NO  -Faulty SRS indicator circuit in the gauge control module or poor connection at gauge control module connector A (18P); check the connection. If the connection is OK, replace the gauge control module.

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