DTC 41, TP Sensor, Open Or Shorted Circuit: Notes

WARNING: This page is about a different variant/trim than selected.

Throttle Position (TP) sensor consists of a contact point (idle switch) and a potentiometer, and is connected to throttle valve shaft on throttle body. TP sensor detects throttle valve opening. Idle switch detects throttle opening and turns on during idle. Fully opened throttle is detected by potentiometer. PCM provides a 5-volt reference voltage to TP sensor and as brush moves over resistance according to throttle valve opening, output voltage varies accordingly. PCM monitors on/off signal and sensor output voltage, and uses these to detect throttle valve opening. DTC 41 will set if throttle position input at PCM indicates Wide Open Throttle (WOT) with engine idling for at least 0.5 second, or if throttle position input at PCM indicates and idle signal with engine off idle for at least 0.5 second.

NOTE: Test numbers refer to test numbers on diagnostic chart.

Checks for a fault in Yellow wire between PCM and TP sensor.
Checks for an open in Brown wire between PCM and TP sensor.
Checks for a fault in Light Green wire between PCM and TP sensor, a faulty PCM, or a misadjusted or faulty TP sensor.