Component Tests
INSPECT ONE TOUCH POWER WINDOW SYSTEM CURRENT OF CIRCUITUsing an ammeter:
a. Disconnect the connector from the driver door ECU.
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 18 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 PTC opens some 4 - 90 seconds after the window stops going down, so check must be made before the PTC operates. If the operation is as specified, replace the driver door ECU.
INSPECT ONE TOUCH POWER WINDOW SYSTEM CURRENT OF CIRCUIT
Using an ammeter with a current-measuring probe:
a. Remove the driver door ECU with connector connected.
b. Attach a current-measuring probe to terminal 9 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 PTC opens some 4 - 90 seconds after the window stops going down, so check must be made before the PTC operates. If operation is as specified, replace the driver door ECU.