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Inspection 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 engine room R/B No. 2.
    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.
    2. Check the POWER relay resistance.

      Standard resistance 

      STANDARD RESISTANCE SPECIFICATIONS

      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 

    Fig 1: Identifying EFI Relay
    G04942976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    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 Connector Terminals
      G05114294Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage of the wire harness side connector.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATIONS

      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 

      STANDARD RESISTANCE SPECIFICATIONS

      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.
    2. Measure the resistance of the switch.
      Fig 3: Identifying Power Window Regulator Master Switch
      G05114295Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      STANDARD RESISTANCE SPECIFICATIONS

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

    NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 

    OK: REPLACE MAIN BODY ECU 

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