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Home >> Toyota >> 2005 >> Tacoma PreRunner, 2D Pickup >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System (Diagnostics) >> Manual Up/Down Function Does Not Operate At Rear LH >> Inspection Procedure

Inspection Procedure

  1. CHECK POWER WINDOW REGULATOR SWITCH ASSY REAR (B VOLTAGE) 
    1. Disconnect the P15 power window regulator switch connector.
    2. Turn the ignition switch ON.
    3. Measure the voltage.
      Fig 1: Identifying P15 Power Window Regulator Switch Connector Terminals
      G03087165Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION REFERENCE

      Tester Connection Condition Specified Condition
      P15-3 (B) - Body ground Ignition switch ON 10 to 14 V
    4. Reconnect the power window regulator switch connector.
    • NG : REPAIR OR REPLACE HARNESS OR CONNECTOR (DRIVER SIDE J/B ASSY - POWER WINDOW REGULATOR SWITCH) 
    • OK : Go to next step. 
  2. INSPECT POWER WINDOW REGULATOR SWITCH ASSY REAR (SWITCH OPERATION) 
    1. Remove the power window regulator switch.
    2. Disconnect the P15 power window regulator switch connector.
    3. Measure the resistance between the terminals of the connector when the switch is operated.
      Fig 2: Identifying P15 Power Window Regulator Switch Connector Terminals
      G03087166Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION REFERENCE

      Tester Connection Regulator Switch Specified Condition
      P15-5 (D) - P15-4 (SD) P15-1 (U) - P15-3 (B) UP Below 1Ω
      P15-5 (D) - P15-4 (SD) P15-1 (U) -P15-2 (SU) OFF Below 1Ω
      P15-5 (D) - P15-3 (B) P15-1 (U) - P15-2 (SU) DOWN Below 1Ω
    4. Reconnect the power window regulator switch connector.
    5. Reinstall the power window regulator switch.
    • NG : REPLACE POWER WINDOW REGULATOR SWITCH ASSY REAR 
    • OK : Go to next step. 
  3. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH ASSY - POWER WINDOW REGULATOR MOTOR ASSY AND BODY GROUND) 
    1. Disconnect the P15 power window regulator switch connector.
    2. Disconnect the P12 power window regulator motor connector.
    3. Measure the resistance.
      Fig 3: Identifying P12 Power Window Regulator Motor Connector Terminals
      G03087167Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION REFERENCE

      Tester Connection Specified Condition
      P15-5 (D) - P12-1 Below 1Ω
      P15-1 (U) - P12-2 Below 1Ω
      P15-5 (D) - Body ground 10Ω k or higher
      P15-1 (U) - Body ground 10Ω k or higher
    4. Reconnect the power window regulator switch connector.
    5. Reconnect the power window regulator motor connector.
    • NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 
    • OK : Go to next step. 
  4. INSPECT POWER WINDOW REGULATOR MOTOR ASSY (REAR LH) 
    1. Remove the power window regulator motor.
    2. Apply battery voltage to connector terminals 1 and 2.
    3. Check that the motor smoothly rotates.
      NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2.
      Fig 4: Inspecting Power Window Regulator Motor Assy - Rear LH
      G03087168Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: 

      TERMINAL NUMBER AND SPECIFIED CONDITION REFERENCE

      Terminal No. Specified Condition
      Battery positive (+) --> 2 Battery negative (-) --> 1 Motor gear rotates clockwise
      Battery positive (+) --> 1 Battery negative (-) --> 2 Motor gear rotates counterclockwise
    4. Reinstall the power window regulator motor.
    • NG : REPLACE POWER WINDOW REGULATOR MOTOR ASSY (REAR LH) 
    • OK : REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSY - POWER WINDOW REGULATOR SWITCH ASSY) 
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