4 - 3
Section C
Electrics
9803/6400
Section C
4 - 3
Issue 1
Engine Control
Throttle related function
A signal enters CN2-9 of the controller and ACC of the motor driver from ACC key switch. (24V) The controller and the driver
sense that the key switch is ON, when this signal enters. The controller sends a clockwise rotation instruction (CN8-2) to the
driver, and the driver sends a pulse clockwise rotation (ABA1B1) to the throttle motor. When the throttle motor rotates
clockwise, the limit switch is depressed, and a signal is then sent to the controller (CN4-9) through the driver, to inform the
controller that the 'O point detection' of the throttle motor has been achieved. (O pulse)
After 'O point detection' has been achieved, in order for the controller to confirm the throttle volume position, the voltage
(CN10-2) from the throttle volume control is converted to a pulse number.
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