Component Tests and General Diagnostics

INSPECTION




1. INSPECT POWER WINDOW MASTER SWITCH CONTINUITY
a. Inspect the front driver's switch.




Window unlock:




Window lock:

b. Inspect the front passenger's switch.




Window unlock:




Window lock:

c. Inspect the rear left switch.




Window unlock:




Window lock:

d. Inspect the rear right switch.




Window unlock:




Window lock:
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 8 and the negative (-) lead to terminal 4, and check that all the illuminations light up.




c. Set the window lock switch to the lock position, check that all the passenger's power window switch illuminations go out.
If operation is not as specified, replace the master switch.




3. 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 3 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 6 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 circuit breaker opens some 4 - 40 seconds after the window stops going down, so that check must be done before the circuit breaker operates.

If the operation is as specified, replace the master switch.




4. Using an ammeter with a current - measuring probe:
INSPECT ONE-TOUCH POWER WINDOW SYSTEM/CURRENT OF CIRCUIT
a. Remove the master switch with connector connected.
b. Attach a current-measuring probe to terminal 8 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 circuit breaker opens some 4 - 40 seconds after the window stops going down, so that check must be done before the circuit breaker operates.

If operation is as specified, replace the master switch







5. INSPECT POWER WINDOW MASTER SWITCH CIRCUIT
Disconnect the connector from the master switch and inspect the connector on the wire harness side, as shown in the following.
If the circuit is not as specified, inspect the circuits connected to other parts.







6. Front passenger's door:
INSPECT POWER WINDOW SWITCH CONTINUITY
If continuity is not as specified, replace the switch.







7. Rear door:
INSPECT POWER WINDOW SWITCH CONTINUITY 7
If continuity is not as specified, replace the switch.







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




9. Left side door:
INSPECT 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, and check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.




10. Right side door:
INSPECT 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, and check that the motor turns counterclockwise.
If operation is not as specified, replace the motor.




11. Driver's door:
INSPECT POWER WINDOW MOTOR CIRCUIT BREAKER OPERATION
a. Disconnect the connector from the master switch.
b. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 6 on the wire harness side connector and raise the window to full closed position.




c. Continue to apply voltage, check that a circuit breaker operation noise is heard within approximately 4 to 40 seconds.
d. Reverse the polarity, check that the window begins to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.




12. Front passenger's door:
INSPECT POWER WINDOW MOTOR CIRCUIT BREAKER OPERATION
a. Disconnect the connector from the power window switch.
b. 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 full closed position.
c. Continue to apply voltage, check that is a circuit breaker operation noise is heard within approximately 4 to 40 seconds.




d. Reverse the polarity, check that the window begins to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.




13. Rear door:
INSPECT POWER WINDOW MOTOR CIRCUIT BREAKER OPERATION
a. Disconnect the connector from the power window switch.
b. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 5 on the wire harness side connector, and raise the window to full closed position.
c. Continue to apply voltage, check that a circuit breaker operation noise is heard within approximately 4 to 40 seconds.




d. Reverse the polarity, check that the window begins to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.




14. Key-off power window signal:
INSPECT INTEGRATION RELAY (TYPE B) OPERATION

HINT: When the relay circuit is as specified, inspect the key-off power window signal.

a. Connect the positive (+) lead from the voltmeter to terminal A3 and the negative (-) lead to body ground.
b. Close the door with ignition switch turned to LOCK or ACC, and check that the meter needle indicates battery positive voltage.
c. Open the door and check that the meter needle indicates 0 V




d. Turn the ignition switch ON and check that the meter needle indicates battery positive voltage again.
If operation is not as specified, replace the relay.




15. Key-off power window signal:
INSPECT INTEGRATION RELAY (TYPE C) OPERATION

HINT: When the relay circuit is as specified, inspect the key-off power window signal.

a. Connect the positive (+) lead from the voltmeter to terminal A12 and the negative (-) lead to body ground.
b. Close the door with ignition switch turned to LOCK or ACC, and check that the meter needle indicates battery positive voltage.




c. Open the door and check that the meter needle indicates 0 V.
d. Turn the ignition switch ON and check that the meter needle indicates battery positive voltage again.
If operation is not as specified, replace the relay.

16. INSPECT INTEGRATION RELAY CIRCUIT