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DTC B2312: Power Window Switch Malfunction [07/2015 - ]: Procedure

  1. CHECK FOR DTC 
    1. Clear the DTCs (Refer to DTC CHECK / CLEAR [07/2015 - ] ).
    2. Check for DTCs (Refer to DTC CHECK / CLEAR [07/2015 - ] ).

      OK

      DTC B2312 is not output.

    Result:  OK

    OK 

    END (DUE TO SWITCH BEING OPERATED FOR 20 SECONDS OR MORE) 

    Result:  NG

    NG 

    See step  2

  2. CHECK DTC OUTPUT 
    1. Check the parts which the DTCs have been output from.

      Result

      Result Proceed to
      DTC output from multiplex network master switch assembly A
      DTC output from power window regulator motor assembly (for driver door) B
      DTC output from power window regulator motor assembly (for front passenger door) C
      DTC output from power window regulator motor assembly (for rear LH door) D
      DTC output from power window regulator motor assembly (for rear RH door) E

    Result:  A

    A 

    REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  C

    C 

    See step  7

    Result:  D

    D 

    See step  10

    Result:  E

    E 

    See step  13

    Result:  B

    B 

    See step  3

  3. READ VALUE USING TECHSTREAM (D-DOOR MOTOR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / D-Door Motor / Data List.
    5. Read the Data List according to the display on the Techstream.
      D-DOOR MOTOR

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

      OK

      On the Techstream screen, ON or OFF is displayed accordingly.

    Result:  OK

    OK 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  NG

    NG 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - POWER WINDOW REGULATOR MOTOR (FOR DRIVER DOOR)) 
    1. Disconnect the M4 multiplex network master switch assembly connector.
    2. Disconnect the M8 power window regulator motor assembly (for driver door) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      M4-20 (UP) - Body ground Always 10 kΩ or higher
      M4-15 (DOWN) - Body ground Always 10 kΩ or higher
      M8-10 (UP) - Body ground Always 10 kΩ or higher
      M8-7 (DOWN) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  5

  5. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY 
    1. Replace the multiplex network master switch assembly (Refer to REMOVAL [07/2015 - ] ).

    Result:  NEXT

    NEXT 

    See step  6

  6. CHECK FOR DTC 
    1. Clear the DTCs (Refer to DTC CHECK / CLEAR [07/2015 - ] ).
    2. Check for DTCs (Refer to DTC CHECK / CLEAR [07/2015 - ] ).

      OK

      DTC B2312 is not output.

    Result:  OK

    OK 

    END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE) 

    Result:  NG

    NG 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

  7. READ VALUE USING TECHSTREAM (P-DOOR MOTOR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / P-Door Motor / Data List.
    5. Read the Data List according to the display on the Techstream.
      P-DOOR MOTOR

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

      OK

      On the Techstream screen, ON or OFF is displayed accordingly.

    Result:  OK

    OK 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR FRONT PASSENGER DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  NG

    NG 

    See step  8

  8. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY 
    1. Remove the power window regulator switch assembly (Refer to REMOVAL [07/2015 - ] ).
      GTY682959Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      6 (UP) - 1 (GND) Auto up or up position Below 1 Ω
      7 (DOWN) - 1 (GND) Auto down or down position Below 1 Ω
      8 (AUTO) - 1 (GND) Auto up or auto down position Below 1 Ω
      6 (UP) - 1 (GND) Off 10 kΩ or higher
      7 (DOWN) - 1 (GND) Off 10 kΩ or higher
      8 (AUTO) - 1 (GND) Off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Power Window Regulator Switch Assembly)

    Result:  NG

    NG 

    REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  OK

    OK 

    See step  9

  9. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH - POWER WINDOW REGULATOR MOTOR (FOR FRONT PASSENGER DOOR)) 
    1. Disconnect the L9 power window regulator motor assembly (for front passenger door) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      L4-6 (UP) - Body ground Always 10 kΩ or higher
      L4-8 (AUTO) - Body ground Always 10 kΩ or higher
      L4-7 (DOWN) - Body ground Always 10 kΩ or higher
      L9-10 (UP) - Body ground Always 10 kΩ or higher
      L9-4 (AUTO) - Body ground Always 10 kΩ or higher
      L9-7 (DOWN) - Body ground Always 10 kΩ or higher

    Result:  OK

    OK 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR FRONT PASSENGER DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  10. READ VALUE USING TECHSTREAM (RL-DOOR MOTOR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / RL-Door Motor / Data List.
    5. Read the Data List according to the display on the Techstream.
      RL-DOOR MOTOR

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

      OK

      On the Techstream screen, ON or OFF is displayed accordingly.

    Result:  OK

    OK 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR REAR LH DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  NG

    NG 

    See step  11

  11. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (FOR LH DOOR) 
    1. Remove the rear power window regulator switch assembly (for LH door) (Refer to REMOVAL [07/2015 - ] ).
      GTY659955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      6 (UP) - 1 (GND) Auto up or up position Below 1 Ω
      7 (DOWN) - 1 (GND) Auto down or down position Below 1 Ω
      8 (AUTO) - 1 (GND) Auto up or auto down position Below 1 Ω
      6 (UP) - 1 (GND) Off 10 kΩ or higher
      7 (DOWN) - 1 (GND) Off 10 kΩ or higher
      8 (AUTO) - 1 (GND) Off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Rear Power Window Regulator Switch Assembly (for LH Door))

    Result:  NG

    NG 

    REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (FOR LH DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  OK

    OK 

    See step  12

  12. CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH (FOR LH DOOR) - WINDOW REGULATOR MOTOR (FOR REAR LH DOOR)) 
    1. Disconnect the O2 power window regulator motor assembly (for rear LH door) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      O4-6 (UP) - Body ground Always 10 kΩ or higher
      O4-7 (DOWN) - Body ground Always 10 kΩ or higher
      O4-8 (AUTO) - Body ground Always 10 kΩ or higher
      O2-10 (UP) - Body ground Always 10 kΩ or higher
      O2-7 (DOWN) - Body ground Always 10 kΩ or higher
      O2-4 (AUTO) - Body ground Always 10 kΩ or higher

    Result:  OK

    OK 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR REAR LH DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  13. READ VALUE USING TECHSTREAM (RR-DOOR MOTOR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / RR-Door Motor / Data List.
    5. Read the Data List according to the display on the Techstream.
      RR-DOOR MOTOR

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

      OK

      On the Techstream screen, ON or OFF is displayed accordingly.

    Result:  OK

    OK 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR REAR RH DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  NG

    NG 

    See step  14

  14. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (FOR RH DOOR) 
    1. Remove the rear power window regulator switch assembly (for RH door) (Refer to REMOVAL [07/2015 - ] ).
      GTY659955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      6 (UP) - 1 (GND) Auto up or up position Below 1 Ω
      7 (DOWN) - 1 (GND) Auto down or down position Below 1 Ω
      8 (AUTO) - 1 (GND) Auto up or auto down position Below 1 Ω
      6 (UP) - 1 (GND) Off 10 kΩ or higher
      7 (DOWN) - 1 (GND) Off 10 kΩ or higher
      8 (AUTO) - 1 (GND) Off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Rear Power Window Regulator Switch Assembly (for RH Door))

    Result:  NG

    NG 

    REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (FOR RH DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  OK

    OK 

    See step  15

  15. CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH (FOR RH DOOR) - WINDOW REGULATOR MOTOR (FOR REAR RH DOOR)) 
    1. Disconnect the N2 power window regulator motor assembly (for rear RH door) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      N4-6 (UP) - Body ground Always 10 kΩ or higher
      N4-7 (DOWN) - Body ground Always 10 kΩ or higher
      N4-8 (AUTO) - Body ground Always 10 kΩ or higher
      N2-10 (UP) - Body ground Always 10 kΩ or higher
      N2-7 (DOWN) - Body ground Always 10 kΩ or higher
      N2-4 (AUTO) - Body ground Always 10 kΩ or higher

    Result:  OK

    OK 

    REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR REAR RH DOOR) 

    (Refer to REMOVAL [07/2015 - ] )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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