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BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:U0233

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DTC Code DTC Name
U0233 Lost Communication with Blind Spot Monitor Master Module
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DESCRIPTION

This DTC is stored when the blind spot monitor sensor LH judges that there is a communication problem with the blind spot monitor sensor RH.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0233 Lost Communication with Blind Spot Monitor Master Module The blind spot monitor sensor (slave) cannot receive signals from the blind spot monitor sensor (master)

  • Blind spot monitor sensor RH

  • Blind spot monitor sensor LH

  • Wire harness or connector
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CAUTION / NOTICE / HINT

Note:

When checking for DTCs, make sure that the blind spot monitor system is turned on.

Tip:

  • Operating the power switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.

  • Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.

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PROCEDURE


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    CHECK DTC OUTPUT


    1. Turn the power switch off.

    2. Turn the power switch on (IG).

    3. Clear the DTCs.


      1. Body Electrical > Blind Spot Monitor Slave > Clear DTCs


    4. Check for DTCs.


      1. Body Electrical > Blind Spot Monitor Slave > Trouble Codes


      Result
      Result Proceed to
      DTC U0233 is output A
      No DTCs are output B

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    REPLACE BLIND SPOT MONITOR SENSOR RH

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    Result
    Proceed to
    NEXT

  3. Click here

    CHECK DTC OUTPUT


    1. Check for DTCs.


      1. Body Electrical > Blind Spot Monitor Slave > Trouble Codes


      Result
      Result Proceed to
      DTC U0233 is output A
      No DTCs are output B

    • A

      REPLACE BLIND SPOT MONITOR SENSOR LHClick here

    • B

      END (BLIND SPOT MONITOR SENSOR RH WAS DEFECTIVE)