FixVault
Home › Toyota › 2011 › Tacoma X-Runner › Repair and Diagnosis › Body & Frame › Windows › Power Window Control System (Diagnostics & Symptom Tests) › Power Window Control System › Symptom Tests › Power Windows do not Operate at All › Procedure

Power Windows do not Operate at All: Procedure

  1. INSPECT FUSE (D FR P/W, IG1 NO. 2, ECU-B, AM1, J/B) 
    1. Remove the D FR P/W and IG1 No. 2 fuses from the driver side J/B.
    2. Remove the ECU-B, AM1 and J/B fuses from the engine room R/B.
    3. Measure the resistance.

      Standard resistance

      Below 1 Ω

    4. Reinstall the D FR P/W and IG1 No. 2 fuses.
    5. Reinstall the ECU-B, AM1 and J/B fuses.

    NG → REPLACE FUSE 

    OK: Go to next step 

  2. INSPECT RELAY (P/W) 
    1. Remove the P/W relay from the driver side J/B.
      Fig 1: Inspecting Relay (P/W)
      GTY185383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance.

      Standard voltage

      Tester Connection Specified Condition
      3 - 5 10 kΩ or higher
      3 - 5 Below 1 Ω
      (when battery voltage is applied to terminals 1 and 2)
    3. Reinstall the P/W relay.

    NG → REPLACE RELAY 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (FOR POWER SOURCE OF DRIVER SIDE J/B ASSEMBLY) 
    1. Disconnect the 1A,1C, and 1H driver side J/B connectors.
      Fig 2: Identifying 1A, 1H & 1C Connector Terminals
      GTY184042Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage and resistance.

      Standard voltage

      Tester Connection Condition Specified Condition
      1A-6 - Body ground Constant 10 to 14 V
      1C-16 (ECU-B) - Body ground Constant 10 to 14 V
      1A-4 (IG) - Body ground Ignition switch ON 10 to 14 V

      Standard resistance

      Tester Connection Condition Specified Condition
      1H-18 (GND) - Body ground Constant Below 1 Ω
    3. Reconnect the driver side J/B connectors.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - BODY GROUND) 
    1. Disconnect the P9 power window regulator master switch connector.
    2. Measure the voltage or resistance.
      Fig 3: Identifying P9 Connector Terminals
      GTY169970Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard voltage

      Double cab 

      Access cab 

      Tester Connection Condition Specified Condition
      P9-7 (B) - Body ground Ignition switch ON 10 to 14 V
      Tester Connection Condition Specified Condition
      P9-9 (B) - Body ground Ignition switch ON 10 to 14 V

      Standard resistance

      Double cab 

      Access cab 

      Tester Connection Condition Specified Condition
      P9-1 (E) - Body ground Constant Below 1 Ω
      Tester Connection Condition Specified Condition
      P9-1 (E) - Body ground Constant Below 1 Ω
      Fig 4: Identifying P9 Connector Terminals
      GTY174543Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Reconnect the power window regulator master switch connector.

    OK → REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 

    NG: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (DRIVER SIDE J/B - POWER WINDOW REGULATOR MASTER SWITCH) 
    1. Disconnect the 1H driver side J/B connectors.
      Fig 5: Identifying P9 & 1H Connector Terminals (Double Cab)
      GTY195833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the P9 power window regulator master switch connector.
    3. Measure the resistance.

      Standard resistance (Double cab)

      Tester Connection Specified Condition
      1H-1 - P9-7 (B) Below 1 Ω

      Standard resistance (Access cab)

      Tester Connection Specified Condition
      1H-1 - P9-9 (B) Below 1 Ω
    4. Reconnect the driver side J/B connector.
    5. Reconnect the power window regulator master switch connector.
      Fig 6: Identifying P9 & 1H Connector Terminals (Access Cab)
      GTY195834Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → REPLACE DRIVER SIDE JUNCTION BLOCK 

About FixVault