Tacoma Extra Cab 2WD L4-2.4L (2RZ-FE) (1999)
Power Window Circuit Breaker: Testing and Inspection
INSPECT 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 4 on the wire harness side connector, and raise the
window to full closed position.
c. Continue to apply voltage and check that there is a circuit breaker operation noise within approximately 4 - 40 seconds.
d. Reverse the polarity and check that the window begins to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.