TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical Systems70 / 203
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INSPECT ONE TOUCH POWER WINDOW SYSTEM — MK4 Supra Body Electrical Systems, page 70
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BE–70 BODY ELECTRICAL SYSTEM – POWER WINDOW CONTROL SYSTEM BE2054 BE0335 209151 BE2058 BE0335 209152 BE2854 NO8855 209163 BE2658 NO8855 209164 3. INSPECT ONE TOUCH POWER WINDOW SYSTEM Using an ammeter. (a) Disconnect the connector from the master switch. (b) Connect the positive (+) lead from the ammeter to terminal 9 on the wire harness side connector and the negative (–) lead to negative terminal of the battery. (c) Connect the positive (+) lead from the battery to terminal 10 on the wire harness side connector. (d) As the window goes down, check that the current flow is approximately 7 A. (e) Check that the current increases up to approximately 14.5 A or more when the window stops going down. HINT: The circuit breaker opens some 4–90 seconds after the window stops going down, so that check must be made be- fore the circuit breaker operates. If the operation is as specified, replace the master switch. Using an ammeter with a current–measuring probe. (a) Remove the master switch with connector connected. (b) Attach a current–measuring probe to terminal 4 of the wire harness. (c) Turn the ignition switch ON and set the power window switch in the down position. (d) As the window goes down, check that the current flow is approximately 7 A. (e) Check that the current increases up to approximately 14.5 A or more when the window stops going down. HINT: The circuit breaker opens some 9–90 seconds after the window stops going down, so that check must be made be- fore the circuit breaker operates. If operation is as specified, replace the master switch.