Sienna LE V6-3.0L (1MZ-FE) (1998)
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Sunroof / Moonroof Motor: Testing and Inspection
INSPECT SLIDING ROOF MOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, check that the motor turns counterclockwise
(moves of the close and up side).
b. Reverse the polarity, check that the motor turns clockwise. (moves of the open and down side).
If operation is not as specified, replace the motor.
INSPECT SLIDING ROOF MOTOR AND LIMIT SWITCH CIRCUIT
Disconnect the connector from the limit switch and inspect the connector on the wire harness side.
If the circuit is not as specified, inspect the circuits connected to other parts.
