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Section 547 (Power Window Control System - Diagnostics): Precaution

WARNING: This page is about a different car, the 2004 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. NOTICES OF INSPECTION WITH REMOVAL AND INSTALLATION PROCEDURES
    1. Before performing operations related to the front door lock assy RH and door lock cylinder, disconnect the battery terminal or the connectors of the power window regulator master switch assy.
CAUTION: If the operation is performed with the connectors being connected, the door control switch (interlocked with key) inside the door lock might be unexpectedly actuated, which results in injury.