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Home >> Acura >> 2012 >> MDX >> Repair and Diagnosis >> Electrical >> Gauges >> Blind Spot Information System (BSI) >> Symptom Troubleshooting >> BSI OFF switch does not work (USA models)

BSI OFF switch does not work (USA models)

NOTE:
  • If the system malfunctions, always check for DTCs with the HDS.
  • If a DTC is stored, troubleshoot the DTC first.
  • Check the BSI OFF switch by pressing and holding it for 1 second.
  1. Connect the HDS to the data link connector.
  2. Turn the ignition switch to ON (II), then wait for 10 seconds.
  3. Select HISTORY DATA CLEAR in the BSI MENU, and clear the operating history with the HDS.
  4. Press and hold the BSI OFF switch for at least 1 second and repeat again.
  5. Select Data List in the BSI MENU, and check the operating history in the Off to On history of BSI OFF switch and the On to Off history of BSI OFF switch with the HDS.

    Are both ON? 

    YES  -The BSI OFF switch is OK.

    NO  -Go to step 6.

  6. Turn the ignition switch to LOCK (0).
  7. Disconnect the BSI OFF switch 6P connector.
  8. Check the BSI OFF switch 

    Is it OK? 

    YES  -Go to step 9.

    NO  -Replace the BSI OFF switch 

  9. Turn the ignition switch to ON (II).
  10. Measure the voltage between BSI OFF switch 6P connector terminals No. 2 and No. 3. There should be battery voltage.
    Fig 1: Measuring Voltage Between BSI Off Switch 6P Connector Terminals No. 2 And No. 3
    G08055723Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is the voltage as specified? 

    YES  -Go to step 11.

    NO  -Go to step  13.

  11. Turn the ignition switch to LOCK (0).
  12. Measure the voltage between BSI OFF switch 6P connector terminals No. 2 and No. 3. There should be less than 0.2 V.
    Fig 2: Measuring Voltage Between BSI OFF Switch 6P Connector Terminals No. 2 And No. 3
    G08055724Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is the voltage as specified? 

    YES  -Replace the BSI control unit 

    NO  -Repair a short to power in the wire between the BSI control unit and the BSI OFF switch.

  13. Measure the resistance between BSI OFF switch 6P connector terminal No. 2 and body ground. There should be less than 1.0 Ω.
    Fig 3: Measuring Resistance Between BSI OFF Switch 6P Connector Terminal No. 2 And Body Ground
    G08055725Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is the resistance as specified? 

    YES  -Go to step 14.

    NO  -Repair an open in the wire between the BSI OFF; switch and body ground (G501).

  14. Turn the ignition switch to LOCK (0).
  15. Disconnect the BSI control unit 16P connector.
  16. Measure the resistance between BSI control unit 16P connector terminal No. 8 and body ground. There should be an open circuit or at least 1 MΩ.
    Fig 4: Measuring Resistance Between BSI Control Unit 16P Connector Terminal No. 8 And Body Ground
    G08055726Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is the resistance as specified? 

    YES  -Go to step 17.

    NO  -Repair a short to ground in the wire between the BSI control unit and the BSI OFF switch.

  17. Measure the resistance between BSI control unit 16P connector terminal No. 8 and BSI OFF switch 6P connector terminal No. 3. There should be less than 1.0 Ω.
    Fig 5: Measuring Resistance Between BSI Control Unit 16P Connector And BSI OFF Switch 6P Connector
    G08055727Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is the resistance as specified? 

    YES  -Replace the BSI control unit 

    NO  -Repair an open in the wire between the BSI control unit and the BSI OFF switch.