TP Sensor
Display shows throttle angle from 0 to 100% and sensor voltage from 0.0 to 5.0 volts. The % display indicates the throttle angle opening from closed (0%) to fully open (100%). The AF ECU learns the closed throttle position whenever the TP sensor voltage is below about 0.9 volts. Learning the closed throttle position is necessary in order to adjust for production tolerances. The voltage display indicates the throttle angle opening from closed (about 0.5 volts) to fully open (about 4.0 volts).