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DTC B2312: Power Window Switch Malfunction [05/2013 - 01/2014]: Procedure

  1. CHECK DTC 
    1. Clear the DTC. Refer to DTC CHECK / CLEAR [05/2013 - ] .
    2. Check for DTC. Refer to DTC CHECK / CLEAR [05/2013 - ] .

      OK

      DTC B2312 is not output.

    NG → See step   2 

    OK → END (DTC WAS STORED DUE TO SWITCH BEING OPERATED FOR 20 SECONDS OR MORE) 

  2. READ VALUE USING TECHSTREAM (D DOOR P/W UP SW, D DOOR P/W DOWN SW) 
    1. Use the Data List to check if the power window regulator motor assembly LH is functioning properly. Refer to DATA LIST / ACTIVE TEST [05/2013 - ] .
      D-DOOR MOTOR

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D Door P/W Auto SW Driver side power window auto up/down signal / ON or OFF ON: Driver side power window auto up/down switch operated
      OFF: Driver side power window switch not operated
      -
      D Door P/W Up SW Driver side power window manual up signal / ON or OFF ON: Driver side power window manual up switch operated
      OFF: Driver side power window switch not operated
      -
      D Door P/W Down SW Driver side power window manual down signal / ON or OFF ON: Driver side power window manual down switch operated
      OFF: Driver side power window switch not operated
      -

      OK

      On Techstream screen, each item changes between ON and OFF according to above chart.

    NG → See step   3 

    OK → See step   6 

  3. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY LH) 
    1. Disconnect the E1 power window regulator master switch assembly connector.
    2. Disconnect the E2 power window regulator motor assembly LH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E1-18 (UP) - E2-10 (UP) Always Below 1 Ω
      E1-10 (DOWN) - E2-7 (DOWN) Always Below 1 Ω
      E1-1 (AUTO) - E2-4 (AUTO) Always Below 1 Ω
      E1-18 (UP) - Body ground Always 10 kΩ or higher
      E1-10 (DOWN) - Body ground Always 10 kΩ or higher
      E1-1 (AUTO) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    1. Remove the power window regulator master switch assembly. Refer to REMOVAL [05/2013 - ] .
    2. Inspect the power window regulator master switch assembly. Refer to INSPECTION [05/2013 - ] .

    NG → See step   7 

    OK → See step   5 

  5. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH. Refer to  REMOVAL [05/2013 - 01/2014] 
  6. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH. Refer to  REMOVAL [05/2013 - 01/2014] 
  7. REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY. Refer to  REMOVAL [05/2013 - ]