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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U0232

Lost Communication with Blind Spot Monitor Slave Module

The blind spot monitor sensor LH cannot receive signals from the blind spot monitor sensor RH.

  • CAN communication Line

  • Blind spot monitor sensor LH

  • Blind spot monitor sensor RH

WIRING DIAGRAM

E233765E59

CAUTION / NOTICE / HINT

Note:

  • When checking for DTCs, make sure that the blind spot monitor system 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 T1 blind spot monitor sensor RH connector.

    2. Disconnect the R1 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

      T1-1 (CA2P) - R1-1 (CA2P)

      Always

      Below 1 Ω

      T1-6 (CA2N) - R1-6 (CA2N)

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE CAN LINE OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)

    1. E263038C03

      *a

      Front view of wire harness connector

      (to Blind Spot Monitor Sensor RH)

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      T1-5 (BRB) - Body ground

      Power switch on (IG)

      11 to 14 V

      Result

      Proceed to

      OK

      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (GROUND TERMINAL)

    1. E263038C70

      *a

      Front view of wire harness connector

      (to Blind Spot Monitor Sensor RH)

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      T1-10 (BRGD) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE BLIND SPOT MONITOR SENSOR RH

    1. Temporarily replace the blind spot monitor sensor RH with a new or normally functioning one.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  5. CHECK DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Blind Spot Monitor Master > Clear DTCs

      Body Electrical > Blind Spot Monitor Slave > Clear DTCs

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

      Click here

      Body Electrical > Blind Spot Monitor Master > Trouble Codes

      Body Electrical > Blind Spot Monitor Slave > Trouble Codes

    Result

    Result

    Proceed to

    No DTCs are output

    A

    DTCs are output

    B
    A

    END (BLIND SPOT MONITOR SENSOR RH IS DEFECTIVE)

    B

    REPLACE BLIND SPOT MONITOR SENSOR LH

    Click here