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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 Rear LH >> Inspection Procedure
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Inspection Procedure

  1. CHECK MANUAL UP/DOWN FUNCTION (REAR LH) 
    1. Check that the door glass can be operated manually.
    1. NG: OTHER PROBLEM (See  MANUAL UP/DOWN FUNCTION DOES NOT OPERATE AT REAR LH  ) 
    2. OK: GO TO NEXT STEP 
  2. CHECK ILLUMINATION OF POWER WINDOW SWITCH (REAR LH) 
    1. Turn the ignition switch ON.
    2. Operate the power window switch.
      Fig 1: Operating Power Window Switch
      G03470576Courtesy 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
    G03470577Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. B: Go To Step   4 
    2. C: REPLACE POWER WINDOW REGULATOR SWITCH ASSY REAR (REAR LH) 
    3. A: GO TO NEXT STEP 
  3. RESET POWER WINDOW REGULATOR MOTOR (REAR LH) 
    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 (SWITCH <=> MOTOR) 
    1. Remove the rear LH side door trim board (See OVERHAUL ).
    2. Disconnect the P8 power window switch connector.
    3. Disconnect the P12 power window motor connector.
    4. Check the continuity between the wire harness side connectors.

      Standard: 

      SPECIFIED CONDITION

      Terminal No. Specified Condition
      P8-5 <=> P12-4 Continuity
      P8-3 <=> P12-5 Continuity
      P8-4 <=> P12-3 Continuity
      P8-8 <=> P12-6 Continuity
      P8-3 <=> Body ground No continuity
      P8-4 <=> Body ground No continuity
      P8-5 <=> Body ground No continuity
      P8-8 <=> Body ground No continuity
      Fig 3: Checking Continuity Between Wire Harness Side Connectors
      G03470578Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH (REAR LH SIDE) 
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