WINDSHIELD WIPER AND WASHER



CONSTRUCTION DIAGRAM





note *: Using the customise function, the vehicle speed-dependent variable intermittent time function, rain sensitive AUTO wiper function, washer-linked wiper function and the delayed finishing wipe function can be selected (Refer to ).

DESCRIPTION OF CONSTRUCTION AND OPERATION



Intermittent control (Vehicle speed-dependent variable type) <Initial condition: with function>





  1. ETACS calculates the windshield intermittent wiper interval T1 from the position of the windshield intermittent wiper switch on the column switch and the vehicle speed signal (sent from the combination meter to ETACS via CAN communication).
    note Using the customise function, the vehicle speed-dependent variable intermittent time function can be invalidated (Refer to ).
  2. When ETACS receives the ON signal of the windshield intermittent wiper switch, it turns the windshield wiper relay ON. When the wiper reaches the stop position, the windshield wiper auto-stop signal turns OFF, and the windshield wiper relay turns OFF. When the intermittent time T1 calculated by step 1 has elapsed after the windshield wiper relay ON, the windshield wiper relay turns ON again, and the above-mentioned operation is repeated.

Mist wiper control



When the windshield wiper mist switch on the column switch is turned ON while the ignition switch is in ACC or ON position, the column switch turns the windshield wiper relay ON. At the same time, the wiper speed switching relay turns ON (HI). When the windshield mist wiper switch is ON, the windshield wiper operates at high speed.

Low speed wiper and high speed wiper control




When the windshield low speed wiper switch on the column switch is turned ON while the ignition switch is in ACC or ON position, the column switch turns the windshield wiper relay ON. Also, the wiper speed switching relay turns OFF (LO), and the windshield wiper operates at low speed.
When the windshield high speed wiper switch is turned ON, the windshield wiper relay turns ON. Also, the wiper speed switching relay turns ON (HI), and the windshield wiper operates at high speed.

Windshield wiper linked with washer function <Initial condition: with function>




Wiper switch
Washer switch ON time (t)
Windshield wiper operation time (T)
OFF position
Less than 0.35 second
0 second
0.35 second to less than 0.5 second
1 second
0.5 second or more
3 seconds
INT position
Less than 0.35 second
1 second
0.35 second to less than 0.5 second
1 second
0.5 second or more
3 seconds
AUTO position
Less than 0.35 second
1 second
0.35 second to less than 0.5 second
0 second
0.5 second to less than 0.75 second
1 second
0.75 second or more
3 seconds
LO, HI, MIST position
-
3 seconds
When the windshield washer switch on the column switch is turned ON while the ignition switch is in ACC or ON position, ETACS turns the windshield washer relay ON.
When the windshield washer switch is kept ON for 0.35 second or longer, the windshield wiper relay (the wiper relay output time varies depending on the conditions. For details, see the table.) is turned ON, and the windshield wiper operates at high speed. The windshield wiper is turned OFF with 3 seconds delay after the windshield washer switch is turned OFF.
Even when the windshield washer switch is turned ON while the windshield wiper is operating intermittently, the intermittent action starts again after the linked operation is finished.
If the ignition switch is turned to ACC position while the windshield washer switch is ON, the windshield washer relay turns ON, but the windshield wiper does not perform the linked operation. When the windshield washer switch is turned OFF and then ON, the windshield wiper starts the linked operation.
note
  • Using the customise function, the washer linked windshield wiper function can be invalidated (Refer to ).
  • Using the customise function, when the washer linked windshield wiper function is invalidated, only the washer operates. It is useful to melt ice from the frozen windshield.

Comfort washer function <Initial condition: without function>


The table below shows the switch operations of the comfort washer.
Wiper switch
Washer-linked wiper: Enable
Washer-linked wiper: Disable

Vehicle speed less than 130km/h
Vehicle speed 130km/h or more
Vehicle speed less than 130km/h
Vehicle speed 130km/h or more
OFF
Intermittent washer and wiping
1-second washer and wiping
1-second washer
1-second washer
INT
Intermittent washer and wiping
1-second washer and wiping
1-second washer
1-second washer
AUTO
Intermittent washer and wiping
1-second washer and wiping
Intermittent washer and wiping
1-second washer and wiping
LO
Intermittent washer and wiping
0.5-second washer
Intermittent washer and wiping
0.5-second washer
HI or MIST
1-second washer
1-second washer
1-second washer
1-second washer
note
  • The comfort washer function can be enable by the customise function.(Refer to .)
  • When the windshield wiper switch is operated while the comfort washer function is activated, the comfort washer function will be suspended.

Intermittent washer and wiping




The intermittent washer and wiping operate as follows:

  1. Turn on the windshield washer switch for less than 0.35 second.
  2. The windshield washer operates for 0.5 seconds.
  3. The windshield washer operates intermittently 4 to 6 times, and the windshield wipers operate, linked with the windshield washer operation.
  4. The windshield wipers operate for 3 seconds.
note
  • If the windshield washer switch is turned ON for less than 0.35 second when the windshield washer is injecting washer fluid for 0.5 seconds and when the windshield washer is injecting washer fluid intermittently 4 to 6 times, the intermittent washer and wiping will stop.
  • If the windshield washer switch is turned ON for less than 0.35 second when the windshield wipers are operating for 3 seconds, the windshield washer operates intermittently 4 to 6 times again.

1-second washer and wiping




When the windshield washer switch is turned ON for less than 0.35 second, the windshield washer operates for 1 second. The windshield washer operates for 1 second, and then the windshield wipers operate for 3 seconds.
note
  • If the windshield washer switch is turned ON for less than 0.35 second when the windshield wipers are operating for 3 seconds, the windshield washer operates for 1 second again.

0.5-second washer



When the windshield washer switch is turned ON for less than 0.35 second, the windshield washer operates for 0.5 second.

1-second washer



When the windshield washer switch is turned ON for less than 0.35 second, the windshield washer operates for 1 second.

Rain sensitive AUTO wiper function <Optional>






note Using the customise function, the rain sensitive AUTO wiper function can be invalidated (Refer to ).

Delayed finishing wipe function <Initial condition: with function>



  1. When the washer lever of the column switch is operated for 0.5 seconds or longer with the ignition switch in the ACC or ON position, or when the comfort washer function is enable, the washer fluid is sprayed and the wiper is operated. 6 seconds after stopping the wiper operation, the wiper operates once to wipe out the washer fluid ran down.
note Using the customise function, the delayed finishing wipe function can be invalidated (Refer to ).