Circuit Description

Throttle Position (TP) sensor provides a voltage signal that changes relative to throttle opening. Signal voltage varies from about 0.6 volt at idle to about 4.5 volts at Wide Open Throttle (WOT). TP sensor signal is one of the most important inputs used by VCM for fuel control and most VCM control outputs.

Conditions for setting DTC:

• Engine is running.
• No IAC, MAP or TP sensor DTCs are set.
• BARO not defaulted.
• Change in throttle position is less than 2 percent.
• Last throttle position is greater than calculated throttle position based on engine RPM.