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Power Window System Current Test: Avalon

  1. Disconnect harness connector from driver's door ECU. Connect ammeter positive lead to terminal No. 1 at harness connector (harness side). See Figure.
  2. Connect ammeter negative lead to negative terminal of 12-volt battery. Connect jumper wire between battery positive terminal and terminal No. 14 at harness connector (harness side). Turn ignition switch to RUN position. Depress power window switch to down position.
  3. As driver's window is lowered, current should be about 7 amps. When window operation is stopped, current should increase to about 14.5 amps or more. If current is as described, replace driver's door ECU. If current is not as described, check and repair appropriate circuit as necessary. See WIRING DIAGRAMS .
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