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LIN COMMUNICATION SYSTEM, Diagnostic DTC:B2323

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DTC Code DTC Name
B2323 Rear Door RH ECU Communication Stop
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DESCRIPTION

This DTC is output when LIN communication between the power window regulator motor assembly (for rear RH side) and main body ECU stops for more than 10 seconds.

DTC Code DTC Detection Condition Trouble Area
B2323 No communication between power window regulator motor assembly (for rear RH side) and main body ECU for more than 10 seconds.

  • Power window regulator motor assembly (for Rear RH side)

  • Main body ECU

  • Wire harness or connector

  • P/W RR fuse
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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

  • When the power window regulator motor assembly (for rear RH side) is replaced or removed and reinstalled, it requires initialization (Click here).

  • When using the intelligent tester to troubleshoot with the engine switch off:

    Connect the intelligent tester to the DLC3, and turn the courtesy switch on and off at 1.5-second intervals until communication between the tester and vehicle begins.

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PROCEDURE


  1. Click here

    CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MOTOR - BATTERY AND BODY GROUND)


    1. Disconnect the K2 motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K2-1 (GND) - Body ground Always Below 1 Ω
      Standard Voltage
      Tester Connection Condition Specified Condition
      K2-2 (B) - Body ground Always 11 to 14 V

  2. Click here

    CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - POWER WINDOW REGULATOR MOTOR ASSEMBLY)


    1. Disconnect the G50 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G50-10 (LIN2) - K2-9 (LIN) Always Below 1 Ω
      G50-10 (LIN2) - Body ground Always 10 kΩ or higher

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    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for REAR RH SIDE)


    1. Replace the power window regulator motor assembly (for rear RH side) (Click here).


  4. Click here

    CHECK DTC OUTPUT


    1. Clear the DTC (Click here).

    2. Recheck for DTCs.

      OK
      DTC B2323 is not output.

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE FUSE

  7. Click here

    REPLACE MAIN BODY ECUClick here

  8. Click here

    END (POWER WINDOW REGULATOR MOTOR ASSEMBLY IS DEFECTIVE)