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Home >> Lexus >> 2003 >> GX 470 >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System - Diagnosis >> Auto Up/Down Function Does Not Operate At Driver Side >> Inspection Procedure
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Inspection Procedure

  1. CHECK MANUAL UP/DOWN FUNCTION (DRIVER SIDE) 
    1. Check that the door glass can be operated manually.
    1. NG: OTHER PROBLEM (See  MANUAL UP/DOWN FUNCTION DOES NOT OPERATE AT DRIVER SIDE  ) 
    2. OK: GO TO NEXT STEP 
  2. CHECK ILLUMINATION OF POWER WINDOW MASTER SWITCH 
    1. Turn the ignition switch ON.
    2. Operate the driver switch of the master switch.
      Fig 1: Operating Driver Switch Of Master Switch
      G03470568Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Check the blinking pattern of the illumination as shown in Fig 2 .
      1. If pattern (1) is displayed, proceed to A.
      2. If pattern (2) or (3) is displayed, proceed to B.
      3. If the normal pattern is displayed, proceed to C.
    Fig 2: Checking Blinking Pattern Of Illumination
    G03470569Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. B: GO TO STEP   4 
    2. C: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    3. A: GO TO NEXT STEP 
  3. RESET POWER WINDOW REGULATOR MOTOR (DRIVER SIDE) 
    1. Turn the ignition switch ON.
    2. Open the door glass.
    3. Fully pull up the power window switch until the door glass is fully closed.
    4. Continue to hold the switch 1 second more even after the door glass is fully closed.
    5. Check that the AUTO UP/DOWN function operates completely.
    1. OK: END 
    2. NG: GO TO NEXT STEP 
  4. CHECK WIRE HARNESS (MASTER SWITCH <=> MOTOR) 
    1. Remove the driver side door trim board (See OVERHAUL ).
    2. Disconnect the D18 master switch connector.
    3. Disconnect the P10 power window motor connector.
    4. Check the continuity between the wire harness side connectors.

      Standard: 

      SPECIFIED CONDITION

      Terminal No. Specified Condition
      D18-19 <=> P10-4 Continuity
      D18-5 <=> P10-5 Continuity
      D18-15 <=> P10-3 Continuity
      D18-12 <=> P10-6 Continuity
      D18-5 <=> Body ground No continuity
      D18-12 <=> Body ground No continuity
      D18-15 <=> Body ground No continuity
      D18-19 <=> Body ground No continuity
      Fig 3: Checking Continuity Between Wire Harness Side Connectors
      G03470570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH (DRIVER SIDE) 
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