LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 1996 >> LX 450 >> Repair and Diagnosis (Single Page) >> Body & Frame >> Power Windows >> System Testing >> Power Window System Current Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Power Window System Current Test

  1. Disconnect connector from driver's side power window switch. Connect positive lead of ammeter to driver's side power window switch connector (harness side) terminal No. 6.
  2. Connect ammeter negative lead to negative terminal of 12-volt battery. Connect jumper wire from positive battery terminal to driver's side power window switch connector terminal No. 13. See Figure.
  3. While lowering driver's side window, 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 side power window switch. If current is not as described, check and repair appropriate circuit.