LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2005 >> Prius >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window - Diagnostics >> Manual Up/Down Function Does Not Operate On Driver Side >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSY (BW, BDR VOLTAGE) 
    1. Disconnect the P17 master switch connector.
    2. Measure the voltage of the wire harness side connector.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      P17-7 (BW)- Body ground Always 10 to 14 V
      P17-11 (BDR)- Body ground Power switch ON (IG) 10 to 14 V
      Fig 1: Identifying Power Window Regulator Master Switch Assembly (BW, BDR Voltage)
      G02617400Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (BATTERY - POWER WINDOW REGULATOR MASTER SWITCH ASSY) 
    2. OK 
  2. CHECK POWER WINDOW REGULATOR MOTOR ASSY FRONT LH 
    1. Disconnect the P17 master switch connector.
    2. Using a service wire, connect the terminals according to the table below.
    3. Check operation of the power window regulator motor.

      OK: 

      WIRE CONNECTION SPECIFIED CONDITION

      Wire Connection Specified Condition
      P17-4 (DU)-P17-7 (BW) P17-9 (DD) - Body ground Power window moves UP
      P17-4 (DU) - Body ground P17-7 (BW)-P17-9 (DD) Power window moves DOWN
      Fig 2: Identifying Power Window Regulator Motor Assembly Front LH
      G02617401Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Go to step 3 
    2. OK 

      REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 

  3. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY (SWITCH OPERATION) (SEE  INSPECTION   ) 
    1. NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    2. OK 
  4. CHECK WIRE HARNESS (POWER WINDOW REGULATOR MASTER SWITCH ASSY - POWER WINDOW REGULATOR MOTOR ASSY) 
    1. Disconnect the P17 master switch connector.
    2. Disconnect the P18 motor connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      P17-9 (DD)-P18-1 (D) Below 1 Ω
      P17-4 (DU)-P18-2 (U) Below 1 Ω
      P17-9 (DD) or P18-1 (D) - Body ground 10 kΩ or higher
      P17-4 (DU) or P18-2 (U) - Body ground 10 kΩ or higher
      Fig 3: Checking Wire Harness (Power Window Regulator Master Switch Assembly - Power Window Regulator Motor Assembly)
      G02617402Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK 

      REPLACE POWER WINDOW REGULATOR MOTOR ASSY FRONT LH 

scientia non olet · About LEMON Manuals