Power Window Control System: Inspection
- Inspect power window master switch continuity
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Front driver's switch (Window unlock and lock)
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Front passenger's switch (Window unlock):
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Front passenger's switch (Window lock):
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Rear left switch (Window unlock):
Rear left switch (Window lock):
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Rear right switch (Window unlock):
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Rear right switch (Window lock):
If continuity and voltage is not as specified, replace the master switch.
- Using an ammeter: Inspect one touch power window system/current of circuit
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- Disconnect the connector from the master switch.
- 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.
- Connect the positive (+) lead from the battery to terminal 9 on the wire harness side connector.
- As the window goes down, check that the current flow is approximately 7 A.
- Check that the current increases up to approximately 14.5 A or more when the window stops going down.
NOTE: The circuit breaker opens some 4 - 40 seconds after the window stops going down, so that check must be made before the circuit breaker operates.If the operation is not as specified, replace the master switch.
- Using an ammeter with a current-measuring probe: Inspect one touch power window system/current of circuit
- Remove the master switch with connector connected.
- Attach a current-measuring probe to terminal 5 of the wire harness.
- Turn the ignition switch ON and set the power window switch in the down position.
- As the window goes down, check that the current flow is approximately 7 A.
- Check that the current increases up to approximately 14.5 A or more when the window stops going down.
NOTE: The circuit breaker opens some 4 - 40 seconds after the window stops going down, so that check must be made before the circuit breaker operates.If the operation is not as specified, replace the master switch.
- Passenger's and rear switch: Inspect passenger's and rear power window switch continuity
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If continuity is not as specified, replace the switch.
- Front left side door and rear right side door: Inspect power window motor operation
- Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5, check that the motor turns clockwise.
- Reverse the polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.
- Front right side door and rear left side door: Inspect power window motor operation
- Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, check that the motor turns clockwise.
- Reverse the polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.
- Driver's door: Inspect power window motor PTC operation
- Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 9 on the wire harness side connector, and raise the window to fully closed position.
- Continue to apply voltage, check that a circuit breaker operation noise is heard within approximately 4 to 90 seconds.
- Reverse the polarity, check that the window begins to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.
- Passenger's door and rear door: Inspect power window motor PTC operation
- Disconnect the connector from the power window switch.
- Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 1 on the wire harness side connector, and raise the window to fully closed position.
- Continue to apply voltage, check that circuit breaker operation noise is heard within approximately 4 to 90 seconds.
- Reverse the polarity, check that the window begins to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.
- Window up: Inspect front window jam protection limit switch operation
- Disconnect the connector from the master switch.
- Connect the positive (+) lead from the ohmmeter to terminal 17 and the negative (-) lead to terminal 2.
- Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 9.
- Check that the continuity exists when the window goes up.
- Check that the no continuity exists when the window is in the fully closed position.
If operation is not as specified, replace the motor.
- Window down: Inspect front window jam protection limit switch operation
- Connect the positive (+) lead from the ohmmeter to terminal 17 and the negative (-) lead to terminal 2.
- Connect the positive (+) lead from the battery to terminal 9 and the negative (-) lead to terminal 4.
- Check that the continuity exists when the window goes up.
- Check that the no continuity exists when the window is in the fully opened position.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: If connecting the wire harness wrongly, the sensor might be damaged so caution is necessary.
- Inspect front window jam protection pulse switch operation
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- Connect the positive (+) lead from the electrical tester to terminal 14 and the negative (-) lead to terminal 2.
- Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 9.
- Check that pulse is generated during the motor running.
- Reverse the polarity and check that the pulse is generated.
If operation is not as specified, replace the motor.
NOTE: If connecting the wire harness wrongly, the sensor might be damaged so caution is necessary. - Inspect power relay continuity
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If continuity is not as specified, replace the relay.