Circuit Description

Commanded throttle position (based on accelerator pedal position and possibly other limiting factors) is compared to actual throttle position. Both values should be within calibrated range. Commanded and actual throttle position are monitored redundantly by both PCM and TAC modules.

Conditions for setting DTC are: PCM detects that commanded and actual throttle positions are not within a calibrated range of each other and condition is present for less than one second.