Toyota 2006 Tundra, Service - Repair - Maintenance

Page: 3927 / 4947

2005 TOYOTA TUNDRA (EWD611U)
270
Power Window (Access/Standard Cab)
With the ignition SW turned on, current flows through the ECU IG fuse to TERMINAL 9 of the integration relay to TERMINAL
2 to TERMINAL 1 of the power relay to TERMINAL 2 to GROUND, activating the power relay, and the current flowing from
TERMINAL 5 of the power relay flows to TERMINAL 3 to TERMINAL 9 of the power window master SW, TERMINAL 4 of the
power window control SW RH and TERMINAL 1 of power window SW (Back window).
1. Manual Operation (Driver’s Window)
With the ignition SW turned on and with the power window master SW (Manual SW) in UP position, the current flowing to
TERMINAL 9 of the power window master SW flows to TERMINAL 3 to TERMINAL 2 of the power window motor LH to
TERMINAL 1 to TERMINAL 4 of the master SW to TERMINAL 1 to GROUND and causes the power window motor to rotate
in the up direction. The window ascends only while the SW is being pushed.
In down operation, the current flowing from TERMINAL 9 of the power window master SW to TERMINAL 4 flows to
TERMINAL 1 of the motor LH to TERMINAL 2 to TERMINAL 3 of the master SW to TERMINAL 1 to GROUND, flowing in the
opposite direction to manual up operation, causing the motor to rotate in reverse and lowering the window.
2. Auto Down Operation (Driver’s Window)
With the ignition SW on and with the auto SW of the power window master SW in DOWN position, the current flowing to
TERMINAL 9 of the master SW flows to TERMINAL 4 of the master SW to TERMINAL 1 of the power window motor LH to
TERMINAL 2 to TERMINAL 3 of the master SW to TERMINAL 1 to GROUND, causing the motor to rotate towards the down
side.
Then the solenoid in the master SW is activated and it locks the auto SW being pushed, causing the motor to continue to
rotate in auto down operation.
When the window has completely descended, the current flowing between TERMINAL 3 of the master SW and TERMINAL 1
increases. As a result, the solenoid stops operating, the auto SW turns off and the flowing from TERMINAL 9 of the master
SW to TERMINAL 4 is cut off, stopping the motor so that auto stop occurs.
3. Stopping of Auto Down AT Driver’s Window
When the manual SW (Driver’s) is pushed to the up side during auto down operation, a ground circuit opens in the master
SW and current does not flow from TERMINAL 3 of the master SW to TERMINAL 1, so the motor stops, causing auto down
operation to stop. If the manual SW is pushed continuously, the motor rotates in the up direction in manual up operation.
4. Manual Operation By Power Window Control SW (Passenger’s Window)
With the power window control SW RH is pushed to the up side, the current flowing from TERMINAL 4 of the power window
control SW RH flows to TERMINAL 3 of the power window control SW RH to TERMINAL 1 of the power window motor RH to
TERMINAL 2 to TERMINAL 1 of the power window control SW RH to TERMINAL 2 to TERMINAL 10 of the master SW to
TERMINAL 1 to GROUND. This causes the power window motor RH to rotate in the up direction. Up operation is continuous
only while the power window control SW RH is pushed to the up side. When the window descends, the current flowing to the
motor flows in the opposite direction, from TERMINAL 1 to TERMINAL 2, and the motor rotates in revers.
When the window lock SW is pushed to the lock side, the ground circuit to the passenger’s window becomes open. As a
result, even if Open/Close operation of the passenger’s window is tried, the current from TERMINAL 9 of the power window
master SW is not grounded and the motor does not rotate, so the passenger’s window can not be operated and window lock
occurs.
5. Key Off Power Window Operation
With the ignition SW turned from on to off, the integration relay operates for about 43 seconds and current flows from
TERMINAL 1 of the power relay to TERMINAL 2 to GROUND. For this period, current also flows TERMINAL 5 to TERMINAL
3. This current flows to TERMINAL 9 of the power window master SW and to TERMINAL 4 of the power window control SW
RH. As a result, for about 43 seconds after the ignition SW is turned off, it is possible to raise and lower the power window by
the functioning of the integration relay. Also, by opening the door (Door courtesy SW on) within about 43 seconds after
turning the ignition SW to off, a signal is input to TERMINAL 3, 14 or 15 of the integration relay. As a result, the integration
relay turns off, and up and down movement of the window stops.
System Outline