isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Wide Open Throttle Switch <--> [Throttle Full Open Switch]|Testing and Inspection > < Vehicle Speed Sensor|Specifications|Page 1301
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Wide Open Throttle Switch: Description and Operation

Wide Open Throttle Switch (WOT)

The Wide Open Throttle Switch (WOT) is connected to the throttle valve shaft in the throttle body assembly and informs the ECM of throttle
valve position.  To differentiate between idle, intermediate and full throttle, the ECM detects resistance variations through the switch
corresponding to these three throttle valve positions.  This input is entered into various ECM calculations such as ignition timing, injector pulse
width and air injection control.

Wide Open Throttle Switch <--> [Throttle Full Open Switch]|Testing and Inspection > < Vehicle Speed Sensor|Specifications|Page 1301