BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:U0232

DTC Code DTC Name
U0232 Lost Communication with Blind Spot Monitor Slave Module

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area Note
U0232 Lost Communication with Blind Spot Monitor Slave Module The blind spot monitor sensor RH cannot receive signals from the blind spot monitor sensor LH.

  • CAN communication Line

  • Blind spot monitor sensor LH

  • Blind spot monitor sensor RH

 -

WIRING DIAGRAM

A01MHY9E44

CAUTION / NOTICE / HINT

Note


  • When checking for DTCs, make sure that the blind spot monitor main switch (multi-function switch) is on.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BLIND SPOT MONITOR SENSOR LH)


    1. Disconnect the Q20 blind spot monitor sensor RH connector.

    2. Disconnect the P31 blind spot monitor sensor LH connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q20-1 (CA2P) - P31-1 (CA2P) Always Below 1 Ω
      Q20-6 (CA2N) - P31-6 (CA2N) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE CAN LINE OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - BATTERY AND BODY GROUND)


    1. A01MH52C53
      *a

      Front view of wire harness connector

      (to Blind Spot Monitor Sensor LH)

      Disconnect the blind spot monitor sensor LH connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      Q20-5 (BLB) - Body ground Power switch on (IG) 11 to 14 V

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q20-10 (BLGD) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE BLIND SPOT MONITOR SENSOR LH


    1. Replace the blind spot monitor sensor LH.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Blind Spot Monitor Master > Clear DTCs

    2. Recheck for DTCs and check if the same DTC is output again.


      Body Electrical > Blind Spot Monitor Master > Trouble Codes
      OK
      DTC U0232 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (BLIND SPOT MONITOR SENSOR LH WAS DEFECTIVE)

    NG

    REPLACE BLIND SPOT MONITOR SENSOR RH Click here