Component Tests and General Diagnostics

INSPECT ONE TOUCH POWER WINDOW SYSTEM LHD Models


Using An Ammeter
1. Disconnect the connector from the master switch.







2. Connect the positive (+) lead from the ammeter to terminal 3 on the wire harness side connector and the negative (-) lead to the negative (-) terminal of the battery.







3. Connect the positive (+) lead from the battery to terminal 4 on the wire harness side connector.
4. As the window goes down, check that the current is approximately 7 A.
5. 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 - 40 seconds after the window stops going down, so that check must be made before the circuit breaker operates.

If operation is not as specified, replace the master switch.

Using An Ammeter With A Current Measurement Probe
1. Remove the master switch with connector connected.







3. Attach a current-measuring probe to terminal 3 of the wire harness.
3. Turn the ignition switch ON, and set the power window switch in the down position.







4. As the window goes down, check that the current is approximately 7 A.
5. 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 - 40 seconds after the window stops going down, so that check must be made before the circuit breaker operates.

If operation is not as specified, replace the master switch.