Component Inspection

INSPECTION

1. Using an ammeter:
INSPECT ONE TOUCH POWER WINDOW SYSTEM/ CURRENT OF CIRCUIT
a. Disconnect the connector from the master switch.
b. Connect the positive (+) lead from the ammeter to terminal 1 on the wire harness side connector and the negative (-) lead to negative (-) terminal of the battery.
c. Connect the positive (+) lead from the battery to terminal 14 on the wire harness side connector.
d. As the window goes down, check that the current flow is approximately 7 A.
e. Check that the current increases up to approximately 14.5 A or more when the window stops going down.

HINT: The PTC opens some 4 - 90 seconds after the window stops going down, so that check must be made before the PTC operates.

If the operation is as specified, replace the driver door ECU.

2. Using an ammeter with a current-measuring probe:
INSPECT ONE TOUCH POWER WINDOW SYSTEM/CURRENT OF CIRCUIT
a. Remove the driver door ECU with connectors connected.
b. Attach a current-measuring probe to terminal 25 of the wire harness.
c. Turn the ignition switch ON and set the power window switch in the down position.
d. As the window goes down, check that the current flow is approximately 7 A.
e. Check that the current increases up to approximately 14.5 A or more when the window stops going down.

HINT: The PTC opens some 4 - 90 seconds after the window stops going down, so that check must be made before the PTC operates.

If operation is as specified, replace the driver door ECU.

3. INSPECT REAR POWER WINDOW SWITCH CONTINUITY
If continuity is not as specified, replace the switch.

4. INSPECT POWER MAIN RELAY CONTINUITY
If continuity is not as specified, replace the relay.

5. Driver's Door:
INSPECT POWER WINDOW MOTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the motor turns clockwise.

b. Reverse the polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.

NOTE: Since the jam protection may not work properly be sure to conduct procedures described in "HOW TO RESET POWER MOTOR (RESET AND PULSE SWITCH)" after this inspection.

6. Front Passenger's Door:
INSPECT POWER WINDOW MOTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the motor turns clockwise.

b. Reverse the polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor

7. Rear Left Side Door:
INSPECT POWER WINDOW MOTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the motor turns clockwise.

b. Reverse the polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.

8. Rear Right Side Door:
INSPECT POWER WINDOW MOTOR OPERATION

a. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the motor turns clockwise.

b. Reverse the polarity, check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.

9. Driver's door:
INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION

a. Disconnect the connector from the power window motor.
b. Connect the positive (+) lead from the ammeter to terminal 2 on the wire harness side connector and the negative (-) lead to negative terminal of the battery.
c. Connect the positive (+) lead from the battery to terminal 1 on the wire harness side connector, and raise the window to the fully position.

d. Continue to apply voltage, and check that the current changes to less than 1 A with 4 to 90 seconds.

e. Disconnect the leads from terminals.
f. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 1, and check that the window begins to descended.
If operation is not as specified, replace the motor.

10. Front Passenger's door:
INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION

a. Disconnect the connector from the power window motor.
b. Connect the positive (+) lead from the ammeter to terminal 1 on the wire harness side connector and the negative (-) lead to negative terminal of the battery.
c. Connect the positive (+) lead from the battery to terminal 2 on the wire harness side connector, and raise the window to the fully position.

a. Disconnect the connector from the power window motor.
b. Connect the positive (+) lead from the ammeter to terminal 2 on the wire harness side connector and the negative (-) lead to negative terminal of the battery.
c. Connect the positive (+) lead from the battery to terminal 2 on the wire harness side connector, and raise the window to the fully position.

d. Continue to apply voltage and check that the current changes to less than 1 A within 4 to 90 seconds.
e. Disconnect the leads from the terminals.
f. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the window begins to descend.
If operation is not as specified, replace the motor.

12. Rear RH Door:
INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION

d. Continue to apply voltage and check that the current changes to less than 1 A within 4 to 90 seconds.
e. Disconnect the leads from the terminals.
f. Approximately 60 seconds later, connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the window begins to descend.
If operation is not as specified, replace the motor.

13. INSPECT JAM PROTECTION FUNCTION

NOTE: Never, ever be caught any part of your body when checking.

HINT: In case of performing resetting of the limit switch, do checking after repeating up and down of the glass with automatic operation.

a. Confirmation of AUTO up operation:
Confirm that the window will be fully close with AUTO up operation.
b. Checking of the operation of the jam protection function:
1. Move up the window with AUTO up operation and check that the window will go down when it touches the handle of the hammer stetted.
2. Confirm that the window will then stop going down about 200 mm.

HINT: In case of removing the glass, glass guide, regulator and etc. be sure to perform checking of the jam protection function.

14. Driver's Door (Window Up):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the negative (-) lead from the ohmmeter to terminal 5 and the positive (+) lead to terminal 4.
b. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2.
c. Check that the continuity exists when the window goes up.

d. Check that the no continuity exists when the window is in the fully closed position.
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.

15. Driver's Door (Window Down):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the negative (-) lead from the ohmmeter to terminal 5 and the positive (+) lead to terminal 4.
b. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1.
c. Check that the continuity exists when the window goes down.

d. Check that the no continuity exists when the window is in the fully opened position.
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.

16. Driver's Door:
INSPECT JAM PROTECTION PULSE SWITCH OPERATION
a. Connect the positive (+) lead from the TOYOTA electrical tester to terminal 3 and the negative (-) lead to terminal 5.
b. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2.
c. Check that pulse is generated during the motor running.

d. Reverse the polarity and check that 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.

17. INSPECT JAM PROTECTION FUNCTION

NOTE: Never, ever be caught any part of your body when checking.

HINT: In case of performing resetting of the limit switch, do checking after repeating up and down of the glass with automatic operation.

a. Confirmation of AUTO up operation:
Confirm that the window will be fully close with AUTO up operation.
b. Checking of the operation of the jam protection function:
1. Move up the window with AUTO up operation and check that the window will go down when it touches the handle of the hammer stetted.
2. Confirm that the window will then stop going down about 200 mm.

HINT: In case of removing the glass, glass guide, regulator and etc. be sure to perform checking of the jam protection function. If the jam protection is not function properly, adjust power window motor reset switch and pulse switch.