Component Tests and General Diagnostics

POWER WINDOW CONTROL SYSTEM

INSPECTION

1. INSPECT ONE TOUCH POWER WINDOW SYSTEM/CURRENT OF CIRCUIT (Using an ammeter)
a. Disconnect the connector from the power window 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 15 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 master switch.

2. INSPECT ONE TOUCH POWER WINDOW SYSTEM/CURRENT OF CIRCUIT (Using an ammeter with a current-measuring probe)
a. Remove the power window master switch with connectors connected.
b. Attach a current-measuring probe to terminal 14 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 master switch.

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

4. INSPECT POWER WINDOW SWITCH CIRCUIT
Rear LH side:
Rear RH side:

5. INSPECT POWER WINDOW SWITCH ILLUMINATION
Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 2, and check that the indicator light lights up.
If operation is not as specified, replace the switch.

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

7. INSPECT POWER MAIN RELAY CIRCUIT

8. 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.

9. Driver's Door:
INSPECT POWER WINDOW MOTOR CIRCUIT

10. Front Passenger'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.

11. Front Passenger's Door:
INSPECT POWER WINDOW MOTOR CIRCUIT

12. Rear Left Side Door:
INSPECT POWER WINDOW MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 3 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.

13. 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 3, 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.

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

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 1 and negative (-) lead to terminal 2, and check that the window begins to descended.
If operation is not as specified, replace the motor.

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

16. Rear LH door:
INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION
a. Disconnect the connector from the power window motor.
b. Connect the negative (-) lead from the ammeter to terminal 3 on the wire harness side connector and the positive (+) lead to positive terminal of the battery.
c. Connect the negative (-) 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 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 3, and check that the window begins to descend.
If operation is not as specified, replace the motor.

17. INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION
Rear RH Door:
a. Disconnect the connector from the power window motor.
b. Connect the negative (-) lead from the ammeter to terminal 1 on the wire harness side connector and the positive (+) lead to positive terminal of the battery.
c. Connect the negative (-) lead from the battery to terminal 3 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 3 and the negative (-) lead to terminal 1, and check that the window begins to descend.
If operation is not as specified, replace the motor.

18. Driver's Door (Window Up):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the negative (-) lead from the ohmmeter to terminal 4 and the positive (+) 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 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.

19. Driver's Door (Window Down):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the negative (-) lead from the ohmmeter to terminal 4 and the positive (+) lead to terminal 5.
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.

20. Driver's Door:
INSPECT JAM PROTECTION LIMIT SWITCH CIRCUIT

21. Front Passenger's Door (Window Up):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the negative (-) lead from the ohmmeter to terminal 4 and the positive (+) lead to terminal 5.
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 up.

22. Front Passenger's Door (Window Down):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the negative (-) lead from the ohmmeter to terminal 4 and the positive (+) 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 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.

23. Passenger's Door:
INSPECT JAM PROTECTION LIMIT SWITCH CIRCUIT

24. Rear LH Side Door (Window Up):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (-) lead to terminal 6.
b. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 1.
c. Check that the continuity exists when the window goes up.

25. Rear LH Side Door (Window Down):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (-) lead to terminal 6.
b. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 3.
c. Check that the continuity exists when the window goes down

26. Rear RH Side Door (Window Up):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (-) lead to terminal 6.
b. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 1.
c. Check that the continuity exists when the window goes up

27. Rear RH Side Door (Window Down):
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (-) lead to terminal 6.
b. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 3.
c. Check that the continuity exists when the window goes down

28. Driver's Door:
INSPECT JAM PROTECTION PULSE SWITCH OPERATION
a. Connect the positive (+) lead from the TOYOTA electrical tester to terminal 4 and the negative (-) lead to terminal
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.

30. Front Passenger's Door:
INSPECT JAM PROTECTION PULSE SWITCH OPERATION
a. Connect the positive (+) lead from the TOYOTA electrical tester to terminal 4 and the negative (-) lead to terminal 6.
b. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1.
c. Check that pulse is generated during the motor running.

32. Rear LH Side Door:
INSPECT JAM PROTECTION PULSE SWITCH
a. Connect the positive (+) lead from the TOYOTA electrical tester to terminal 7 and the negative (-) lead to terminal 6.
b. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 1
c. Check that pulse is generated during the motor running.

33. Rear RH Side Door:
INSPECT JAM PROTECTION PULSE SWITCH
a. Connect the positive (+) lead from the TOYOTA electrical tester to terminal 7 and the negative (-) lead to terminal 6.
b. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 1.
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.

34. CHECKING OF THE 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.