Throttle Position Sensor

Description

The Throttle Position Sensor interface consists of 2 analogue signals from which Driver Demand is determined.

There are three Throttle Position Sensor diagnostic checks, a fault is detected if:
1. The enabling conditions have been meet and the signal voltage from potentiometer number 1 is less than 0.25 volts or the signal voltage from potentiometer number 2 is less than 0.19 volts.
2. The enabling conditions have been meet and the signal voltage from either of the potentiometers exceeds 4.75 volts.
3. The engine speed is greater than 1320 RPM and the difference between the two potentiometer signals is greater than 6.3%.
4. The engine speed is greater than 1320 RPM, the difference between the 2 potentiometer signals is greater than 6.3% and the difference between the potentiometer signal and substitute throttle position is greater than 10.2%.





Drive Cycle Information

P0121 Drive Cycle A
P0222 Drive Cycle A
P0123 Drive Cycle A
P0223 Drive Cycle A
P0120 Drive Cycle A
P0121 Drive Cycle A
P0221 Drive Cycle A