Power Window Control System: Inspection

Fig 1: Identifying Power Window Master Switch

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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 right switch (Window unlock): 

Rear right 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: Connecting Leads From Battery To Terminal 4 & 9

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4. As the window moves down, check if the current flow is approximately 7 A.
Fig 3: Identifying Window Moved Down
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5. Check if the current increases up to approximately 14.5 A or more when the window stops moving down.

   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.
Fig 4: Attaching Current Probe To Terminal 4
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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 5: Identifying Window Moved Down
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5. Check if the current increases up to approximately 14.5 A or more when the window stops moving down.

   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: Identifying Passenger's And Rear Power Window Regulator Switch

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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: Checking Motor For Turning Clockwise (Front Left Side & Rear Right Side Door)

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2. Reverse the polarity and check if the motor turns counterclockwise.
   Fig 8: Checking Motor For Turning Counter-Clockwise (Front Left Side & Rear Right Side Door)

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   If operation is not as specified, replace the motor.

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: Checking Motor For Turning Clockwise (Front Right Side & Rear Left Side Door)

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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 Motor For Turning Counter-Clockwise (Front Right Side & Rear Left Side Door)

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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: Connecting Leads From Ammeter To Terminal 5 & 4
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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: Reconnecting Leads From Ammeter To Terminal 5 & 4

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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: Connecting Leads From Ohmmeter To Terminal 17 & 2 & Connecting Leads From Battery To Terminal 4 & 9

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5. Check if no continuity exists when the window is in the fully closed position.
   Fig 14: Checking For Continuity With Window Closed

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   If operation is not as specified, replace the motor.

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: Identifying Master Switch Terminal (Window Down)

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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.