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Inspection Procedure

HINT:

Check which power window cannot be operated, and then proceed with the troubleshooting for the applicable power window as shown in the table below.

TROUBLESHOOTING OF POWER WINDOW

Position Go To Step
Passenger side 1
Rear LH 5
Rear RH 9
All 13
  1. CHECK MANUAL UP/DOWN FUNCTION (PASSENGER SIDE) 
    1. Check that the door glass can be operated by the power window switch.
    1. NG: OTHER PROBLEM (See  MANUAL UP/DOWN FUNCTION DOES NOT OPERATE AT PASSENGER SIDE  ) 
    2. OK: Go To Next Step 
  2. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    1. Using the hand-held tester, check operation of the master switch using the data list.

    Standard: 

    Data list in D-DOOR ECU 

    DATA LIST IN D-DOOR ECU

    Measurement Item Label Parameter
    Passenger switch on master switch P P/W AUTO SW ON/OFF
    1. NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    2. OK: Go To Next Step 
  3. CHECK WIRE HARNESS (FOR POWER WINDOW SWITCH) 
    1. Disconnect the P7 power window switch connector.
    2. Turn the ignition switch ON.
    3. Using an oscilloscope, check the waveform of terminal 2 of the wire harness side connector when operating the passenger side switch of the power window master switch.
    Fig 1: Checking Wire Harness (For Power Window Switch)
    G03476802Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    The waveform is as shown in the illustration. 

    Fig 2: Identifying Waveform
    G03476803Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: REPLACE POWER WINDOW REGULATOR SWITCH ASSY (PASSENGER SIDE) 
    2. NG: Go To Next Step 
  4. CHECK WIRE HARNESS (POWER WINDOW SWITCH --> BODY ECU) 
    1. Disconnect the B3 body ECU connector from the instrument panel J/B assy.
    2. Check the continuity between the terminals of the wire harness side connectors.

    Standard: 

    TERMINAL NO AND SPECIFIED CONDITION

    Terminal No. Specified Condition
    P7-2 <=> B3-11 Continuity
    P7-2 <=> Body ground No continuity
    Fig 3: Checking Wire Harness (Power Window Switch Body ECU)
    G03476804Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: CHECK AND REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY (BODY ECU) 
  5. CHECK MANUAL UP/DOWN FUNCTION (REAR LH) 
    1. Check that the power window can be operated by the power window switch.
    1. NG: OTHER PROBLEM (See  MANUAL UP/DOWN FUNCTION DOES NOT OPERATE AT REAR LH  ) 
    2. OK: Go To Next Step 
  6. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    1. Using the hand-held tester, check operation of the master switch using the data list.

      Standard: 

      Data list in D-DOOR ECU 

      DATA LIST IN D-DOOR ECU

      Measurement Item Label Parameter
      Rear LH switch on master switch RL P/W AUTO SW ON/OFF
    1. NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    2. OK: Go To Next Step 
  7. CHECK WIRE HARNESS (FOR POWER WINDOW SWITCH) 
    1. Disconnect the P8 power window switch connector.
    2. Turn the ignition switch ON.
    3. Using an oscilloscope, check the waveform of terminal 2 of the wire harness side connector when operating the rear LH switch of the master switch.
    Fig 4: Checking Wire Harness (For Power Window Switch)
    G03476805Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    The waveform is as shown in the illustration. 

    Fig 5: Identifying Waveform
    G03476806Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: REPLACE POWER WINDOW REGULATOR SWITCH ASSY REAR (REAR LH) 
    2. NG: Go To Next Step 
  8. CHECK WIRE HARNESS (POWER WINDOW SWITCH --> BODY ECU) 
    1. Disconnect the B4 body ECU connector from the instrument panel J/B assy.
    2. Check the continuity between the terminals of the wire harness side connectors.

    Standard: 

    TERMINAL NO AND SPECIFIED CONDITION

    Terminal No. Specified Condition
    P8-2 <=> B4-14 Continuity
    P8-2 <=> Body ground No continuity
    Fig 6: Checking Wire Harness (Power Window Switch Body ECU)
    G03476807Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: CHECK AND REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY (BODY ECU) 
  9. CHECK MANUAL UP/DOWN FUNCTION (REAR LH) 
    1. Check that the power window can be operated by the power window switch.
    1. NG: OTHER PROBLEM (See  MANUAL UP/DOWN FUNCTION DOES NOT OPERATE AT REAR RH  ) 
    2. OK: Go To Next Step 
  10. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    1. Using the hand-held tester, check operation of the master switch using the data list.

    Standard: 

    Data list in D-DOOR ECU 

    DATA LIST IN D-DOOR ECU

    Measurement Item Label Parameter
    Rear RH switch on master switch RR P/W AUTO SW ON/OFF
    1. NG REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    2. OK: Go To Next Step 
  11. CHECK WIRE HARNESS (FOR POWER WINDOW SWITCH) 
    1. Disconnect the P9 power window switch connector.
    2. Turn the ignition switch ON.
    3. Using an oscilloscope, check the waveform of terminal 2 of the wire harness side connector when operating the rear RH switch of the master switch.
    Fig 7: Checking Wire Harness (For Power Window Switch)
    G03476808Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    The waveform is as shown in the illustration. 

    Fig 8: Identifying Power Window Switch Waveform
    G03476809Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: REPLACE POWER WINDOW REGULATOR SWITCH ASSY REAR (REAR RH) 
    2. NG: Go To Next Step 
  12. CHECK WIRE HARNESS (POWER WINDOW SWITCH --> BODY ECU) 
    1. Disconnect the B4 body ECU connector from the instrument panel J/B assy.
    2. Check the continuity between the terminals of the wire harness side connectors.

    Standard: 

    TERMINAL NO AND SPECIFIED CONDITION

    Terminal No. Specified Condition
    P9-2 <=> B4-16 Continuity
    P9-2 <=> Body ground No continuity
    Fig 9: Checking Wire Harness (Power Window Switch Body ECU)
    G03476810Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: CHECK AND REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY (BODY ECU) 
  13. CHECK POWER WINDOW LOCK SWITCH 
    1. Turn the window lock switch OFF and check that the remote function operates.
    1. OK: END 
    2. NG: Go To Next Step 
  14. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY (FOR WINDOW LOCK SWITCH) 
  1. Remove the master switch (the connector is connected).
  2. Turn the ignition switch ON.
  3. Check the voltage between terminal 6 and the body ground when operating the window lock switch on the master switch.
Fig 10: Inspecting Power Window Regulator Master Switch Assy (For Window Lock Switch)
G03476811Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard: 

TERMINAL NO AND WINDOW LOCK SWITCH SPECIFIED CONDITION

Terminal No. Window Lock Switch Specified Condition
6 <=> Body ground ON 5 V
OFF Less than 1 V
  1. NG REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 
  2. OK: REPAIR OR REPLACE HARNESS AND CONNECTOR (MASTER SWITCH @ EACH SWITCH) 
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