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Home >> Toyota >> 2007 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/Window Glass >> Power Window Control System >> Rear Power Window Switch Circuit >> Inspection Procedure

Inspection Procedure

HINT:

When using the intelligent tester, start the inspection from step 1 and when not using the intelligent tester, start from step  2.

  1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (POWER WINDOW UP/DOWN) 
    1. Connect the intelligent tester to the DLC3.
    2. Turn the ignition switch ON.
    3. According to the display on the tester, perform the "ACTIVE TEST".

      MAIN BODY ECU 

      MAIN BODY ECU ACTIVE TEST REFERENCE

      Item Test Details Diagnostic Note
      RL P/W UP/DOWN Rear left passenger power window DOWN/UP
      CAUTION: This test causes vehicle parts to move. 
      Watch your hands and feet. 
      RR P/W UP/DOWN Rear right passenger power window DOWN/UP
      CAUTION: This test causes vehicle parts to move. 
      Watch your hands and feet. 

      OK: The rear power windows go up or down correctly when operating them through the intelligent tester. 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

    NG: GO TO NEXT STEP 

  2. INSPECT REAR POWER WINDOW CONTROL SWITCH 

    NG: REPLACE REAR POWER WINDOW SWITCH 

    OK: GO TO NEXT STEP 

  3. CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW CONTROL SWITCH - MAIN BODY ECU) 

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  4. INSPECT REAR POWER WINDOW MOTOR 

    NG: REPLACE REAR POWER WINDOW MOTOR 

    OK: GO TO NEXT STEP 

  5. CHECK HARNESS AND CONNECTOR (BATTERY - REAR POWER WINDOW CONTROL SWITCH - BODY GROUND) 
    1. Disconnect the power window control switch rear connector.
    2. Measure the voltage between terminals P3-4 (B) and P3-3 (E), and terminals P4-4 (B) and P4-3 (E) of the power window control switch rear.

      OK: Voltage: 10 to 14 V 

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  6. CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW MOTOR - REAR POWER WINDOW CONTROL SWITCH) 

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE