Throttle Position (TP) Sensor

TP sensor should input a .5-volt reference signal to TCM at closed throttle. At full throttle, signal should be approximately 4 volts. Voltage should change smoothly as throttle valve is opened and closed. If voltage is not as specified, check throttle position sensor wiring circuit. See WIRING DIAGRAMS . Individual component testing of TP sensor is not available from manufacturer.

NOTE: If problem in TP sensor exists, TP sensor may set fault code No. 3 in TCM. See FAULT CODE NO. 3 trouble shooting flow chart under DIAGNOSTIC TESTS .