LIN COMMUNICATION SYSTEM, Diagnostic DTC:B2322

DTC Code DTC Name
B2322 Front Passenger Side Door ECU Communication Stop

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
B2322 No communication between power window regulator motor assembly (for front passenger side) and main body ECU for more than 10 seconds.

  • Power window regulator motor assembly (for Front passenger side)

  • Main body ECU

  • Wire harness or connector

  • P/W FR fuse*1

  • P/W FL fuse*2

WIRING DIAGRAM

A01CG8JE97

INSPECTION PROCEDURE

Note


  • When the power window regulator motor assembly (for front passenger 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.

PROCEDURE


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


    1. Disconnect the I4*1 or J4*2 motor connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      I4-1 (GND) - Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      J4-1 (GND) - Body ground Always Below 1 Ω
      Standard Voltage
      for LHD
      Tester Connection Condition Specified Condition
      I4-2 (B) - Body ground Always 11 to 14 V
      for RHD
      Tester Connection Condition Specified Condition
      J4-2 (B) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE FUSE

    OK

  2. 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
      for LHD
      Tester Connection Condition Specified Condition
      G50-10 (LIN2) - I4-9 (LIN) Always Below 1 Ω
      G50-10 (LIN2) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      G50-10 (LIN2) - J4-9 (LIN) Always Below 1 Ω
      G50-10 (LIN2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for FRONT PASSENGER SIDE)


    1. Replace the power window regulator motor assembly (for front passenger side) Click here.


    NEXT

  4. CHECK DTC OUTPUT


    1. Clear the DTC Click here.

    2. Recheck for DTCs.

      OK
      DTC B2322 is not output.

    NG

    REPLACE MAIN BODY ECU Click here

    OK

    END (POWER WINDOW REGULATOR MOTOR ASSEMBLY IS DEFECTIVE)