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Home >> Lexus >> 2003 >> ES 300 >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System - Diagnosis >> Power Window Regulator Switch Circuit (Rear LH Door) >> Inspection Procedure

Inspection Procedure

  1. CHECK FUSE 
    1. Check the PWR NO. 4 fuse.
    1. NG: REPLACE FUSE 
    2. OK: Go to next step. 
  2. CHECK POWER WINDOW REGULATOR SWITCH ASSY REAR (POWER SOURCE) 
    1. Disconnect the R15 power window regulator switch assy rear (LH side) connector.
    2. Check the voltage between terminal BDR (R15-12) connector of regulator switch and the body ground.

      Standard: 10-14 V 

      Fig 1: Checking Power Window Regulator Switch Assy Rear (Power Source)
      G03372744Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 
    2. OK: Go to next step. 
  3. CHECK POWER WINDOW REGULATOR SWITCH ASSY REAR (GROUND) 
    1. Disconnect the R15 power window regulator switch assy rear (LH side) connector.
    2. Check the continuity between terminal GND (R15-7) connector of regulator switch and the body ground.

      Standard: Continuity 

      Fig 2: Checking Power Window Regulator Switch Assy Rear (Ground)
      G03372745Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 
    2. OK: GO TO FLOWCHART (POWER WINDOW REGULATOR MOTOR CIRCUIT) (See  POWER WINDOW REGULATOR MOTOR ASSY LH CIRCUIT (REAR LH DOOR)   ) 
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