Power Window Control System: Inspection

Fig 1: Identifying Power Window Master Switch Connector Terminals

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FRONT DRIVER'S SWITCH (WINDOW UNLOCK AND LOCK): 

FRONT PASSENGER'S SWITCH (WINDOW UNLOCK): 

FRONT PASSENGER'S SWITCH (WINDOW LOCK): 

REAR LEFT SWITCH (WINDOW UNLOCK): 

REAR LEFT SWITCH (WINDOW LOCK): 

REAR LEFT SWITCH (WINDOW UNLOCK): 

REAR LEFT SWITCH (WINDOW LOCK): 

If the continuity is not as specified, replace the master switch.

1. Disconnect the connector from the master switch.
2. Connect the positive (+) lead from the ammeter to terminal 4 on the wire harness side connector and the negative (-) lead to negative (-) terminal of the battery.
3. Connect the positive (+) lead from the battery to terminal 9 on the wire harness side connector.
   Fig 2: Inspecting One Touch Power Window System/Current Of Circuit (1 Of 2)

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4. As the window moves down, check if the current flow is approximately 7 A.
5. Check if the current increases up to approximately 14.5 A or more when the window stops moving down.
   Fig 3: Inspecting One Touch Power Window System/Current Of Circuit (2 Of 2)

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HINT:

The circuit breaker opens 4 to 40 seconds after the window stops moving down. Therefore, check must be made before the circuit breaker operates.

If operation is not as specified, replace the master switch.

1. Remove the master switch with the connector connected.
2. Attach a current-measuring probe to terminal 4 of the wire harness.
3. Turn the ignition switch ON and set the power window switch in the down position.
4. As the window moves down, check if the current flow is approximately 7 A.
   Fig 4: Attaching Current-Measuring Probe To Terminal 4

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5. Check if the current increases up to approximately 14.5 A or more when the window stops moving down.
   Fig 5: Checking Current Increases Up To Approximately 14.5 A

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HINT:

The circuit breaker opens 4 to 40 seconds after the window stops moving down. Therefore, check must be made before the circuit breaker operates.

If operation is not as specified, replace the master switch.

Fig 6: Inspecting Passenger's & Rear Power Window Regulator Switch Continuity

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If the continuity is not as specified, replace the switch.

1. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5. Check if the motor turns clockwise.
   Fig 7: Front Left Side & Rear Right Side Doors - Inspecting Power Window Motor Operation

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2. Reverse the polarity and check if the motor turns counterclockwise.

   If operation is not as specified, replace the motor.

   Fig 8: Checking If Motor Turns Counterclockwise (Polarity Reversed)

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1. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4. Check if the motor turns clockwise.
   Fig 9: Connecting Positive (+) Lead From Battery To Terminal 5 & Negative (-) Lead To Terminal 4

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2. Reverse the polarity and check if the motor turns counterclockwise.

   If operation is not as specified, replace the motor.

   Fig 10: Checking If Motor Turns Counterclockwise (Polarity Reversed)

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1. Disconnect the connector from the driver door window motor.
2. Connect the positive (+) lead from the ammeter to terminal 5 on the wire harness side connector and the negative (-) lead to the negative terminal of the battery.
3. Connect the positive (+) lead from the battery to terminal 4 on the wire harness side connector. Then, raise the window to the fully closed position.
   Fig 11: Inspecting Power Window Motor PTC Thermistor Operation (1 Of 2)

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4. Continue to apply voltage and check if the current changes to less than 1 A within 4 to 90 seconds.
5. Disconnect the leads from the terminals.
6. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4. Check if the window begins to descend.

   If operation is not as specified, replace the motor.

   Fig 12: Inspecting Power Window Motor PTC Thermistor Operation (2 Of 2)

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1. Disconnect the connector from the master switch.
2. Connect the positive (+) lead from the ohmmeter to terminal 17 and the negative (-) lead to terminal 2.
3. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 9.
4. Check if continuity exists when the window moves up.
   Fig 13: Window Up - Inspecting Front Window Jam Protection Limit Switch Operation

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5. Check if no continuity exists when the window is in the fully closed position.

   If operation is not as specified, replace the motor.

   Fig 14: Checking If No Continuity Exists - Window Is In The Fully Closed Position

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1. Connect the positive (+) lead from the ohmmeter to terminal 17 and the negative (-) lead to terminal 2.
2. Connect the positive (+) lead from the battery to terminal 9 and the negative (-) lead to terminal 4.
3. Check if continuity exists when the window moves up.
   Fig 15: Window Down - Inspecting Front Window Jam Protection Limit Switch Operation

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4. Check if no continuity exists when the window is in the fully opened position.
   NOTE: Connecting the wire harness incorrectly may damage the sensor. Caution is necessary.