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Power Windows do not Operate at All: Procedure

  1. CHECK FUSE (ECU-IG, ECU-B) 
    1. Remove the ECU-IG fuse from the main body ECU.
    2. Remove the ECU-B fuse from No. 2 engine room R/B.
    3. Check the fuses resistance.

      Standard resistance

      Below 1 Ω

    4. Reinstall the ECU-B fuse.
    5. Reinstall the ECU-IG fuse.

    NG → REPLACE FUSE 

    OK: Go to next step 

  2. INSPECT RELAY (Marking: POWER) 
    1. Remove the POWER relay from the main body ECU.
      Fig 1: Identifying Relay Test Terminals
      GTY102844Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the POWER relay resistance.

      Standard resistance

      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 POWER relay.

    NG → REPLACE RELAY 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (MASTER SWITCH - BATTERY AND BODY GROUND) 
    1. Disconnect the H5 power window regulator master switch connector.
      Fig 2: Identifying H5 Power Window Regulator Master Switch (Wire Harness Side) Connector Terminals
      GTY197216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage of the wire harness side connector.

      Standard voltage

      Tester Connection Condition Specified Condition
      H5-9 (B) - Body ground Ignition switch ON 11 to 14 V
    3. Measure the resistance of the wire harness side connector.

      Standard resistance

      Tester Connection Specified Condition
      H5-1 (E) - Body ground Below 1 Ω
    4. Reconnect the master switch connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    1. Remove the power window regulator master switch.
      Fig 3: Identifying Power Window Regulator Master Switch Assembly Terminals
      GTY196075Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the switch.

      Standard resistance

      Tester Connection Power Window Switch Condition Tester Connection Specified Condition
      Always
      (ON / OFF)      		 UP 1 (E) - 4 (D)
      3 (U) - 9 (B)      		 Below 1 Ω
      Always
      (ON / OFF)      		 OFF 1 (E) - 3 (U)
      1 (E) - 4 (D)      		 Below 1 Ω
      Always
      (ON / OFF)      		 DOWN 1 (E) - 3 (U)
      4 (D) - 9 (B)      		 Below 1 Ω
      Always
      (ON / OFF)      		 AUTO DOWN 1 (E) - 3 (U)
      4 (D) - 9 (B)      		 Below 1 Ω
      OFF UP 1 (E) - 10 (D)
      8 (U) - 9 (B)      		 Below 1 Ω
      OFF OFF 1 (E) - 8 (U)
      1 (E) - 10 (D)      		 Below 1 Ω
      OFF DOWN 1 (E) - 8 (U)
      9 (B) - 10 (D)      		 Below 1 Ω
      ON UP 1 (E) - 10 (D) 10 kΩ or higher
      8 (U) - 9 (B) Below 1 Ω
      ON OFF 8 (U) - 10 (D) Below 1 Ω
      ON DOWN 1 (E) - 8 (U) 10 kΩ or higher
      9 (B) - 10 (D) Below 1 Ω
    3. Reinstall the master switch.

    NG → See step   5 

    OK → REPLACE MAIN BODY ECU 

  5. REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY. Refer to REMOVAL 
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