Component Tests and General Diagnostics
INSPECTION1. INSPECT POWER WINDOW MASTER SWITCH CONTINUITY
Front Driver's Switch
Front Passenger's Switch
Rear Left Switch
Rear Right Switch
If continuity is not as specified, replace the master switch.
2. INSPECT POWER WINDOW MASTER SWITCH ILLUMINATION
a. Set the window lock switch to the unlock position.
b. Connect the positive (+) lead from the battery to terminal 18 and the negative (-) lead to terminal 10, and check that all the illuminations light up.
c. Set the window look switch to the lock position.
d. Connect the positive (+) lead from the battery to terminal 8 and the negative (-) lead to terminal 10, and check that all the illuminations does not light up.
If operation is not as specified, replace the master switch.
3. Front Passenger's Door:
INSPECT POWER WINDOW SWITCH CONTINUITY
If continuity is not as specified, replace the switch.
4. Driver's Door:
INSPECT POWER WINDOW MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, 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.
5. Front Passenger's Door:
INSPECT POWER WINDOW MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, 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.
6. Rear Left Side:
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.
HINT: Since the jam protection may not work properly be sure to conduct procedures described in "How to Reset Power Window
Motor (Reset switch and pulse switch)" after this inspection.
7. Rear Right Side:
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.
HINT: Since the jam protection may not work properly be sure to conduct procedures described in "How to Reset Power Window
Motor (Reset switch and pulse switch)" after this inspection.
8. Front Door:
INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION
a. Disconnect the connector from the Driver door Window motor.
b. Connect the positive (+) lead from the ammeter to terminal 5 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 4 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 5 and the negative (-) lead to terminal 4, and check that the window begins to descend.
If operation is not as specified, replace the motor.
9. Rear LH Door:
INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION
a. Disconnect the connector from the Rear LH door ECU.
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 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.
10. Rear RH Door:
INSPECT POWER WINDOW MOTOR PTC THERMISTOR OPERATION
a. Disconnect the connector from the Rear RH door ECU.
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.
11. Driver's Door:
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (-) lead to terminal 3.
b. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5.
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.
NOTE: If connecting the wire harness wrongly, the sensor might be damaged so caution is necessary.
12. Driver's Door:
INSPECT JAM PROTECTION PULSE SWITCH OPERATION
a. Connect the positive (+) lead from the TOYOTA electrical tester to terminal 6 and the negative (-) lead to terminal 3.
b. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5.
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.
13. Passenger's Door:
INSPECT JAM PROTECTION LIMIT SWITCH OPERATION
a. Connect the positive (+) lead from the ohmmeter to terminal 6 and the negative (-) lead to terminal 1.
b. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5.
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.
14. Passenger's Door:
INSPECT JAM PROTECTION PULSE SWITCH OPERATION
a. Connect the positive (+) lead from the TOYOTA electrical tester to terminal 1 and the negative (-) lead to terminal 3.
b. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5.
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.
15. Rear LH Door:
INSPECT JAM PROTECTION LIMIT SWITCH
a. Connect the positive (+) lead from the ohmmeter to terminal 4 and the negative (-) 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.
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.
16. Rear LH Door:
INSPECT JAM PROTECTION PULSE SWITCH
a. Connect the positive (+) lead from the LEXUS electrical tester to terminal 3 and the negative (-) 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 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. Rear RH Door:
INSPECT JAM PROTECTION LIMIT SWITCH
a. Connect the positive (+) lead from the ohmmeter to terminal 4 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 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.
18. Rear RH Door:
INSPECT JAM PROTECTION PULSE SWITCH
a. Connect the positive (+) lead from the LEXUS 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.
19. 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 setted.
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.