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Home >> Dodge and Ram >> 2001 >> Durango 5.9 Z, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Engine Sensors & Switches >> Throttle Position Sensor Operation
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Throttle Position Sensor Operation

NOTE: For circuit identification and wiring diagram, see WIRING DIAGRAMS article. After each repair procedure has been completed, reconnect all components. Perform TEST VER-2: POWERTRAIN VERIFICATION  under VERIFICATION TESTS to ensure system is functioning properly.
  1. Turn ignition on. Ensure throttle is fully closed and against throttle stop. Using scan tool, read Throttle Position (TP) sensor voltage with throttle fully closed. If voltage is 1.5 volts or less, go to next step. If voltage is more than 1.5 volts, replace TP sensor.
  2. Using scan tool, monitor TP sensor voltage while slowly opening throttle from closed position to fully open position. If voltage does not change smoothly from about 0.8 volt to more than 3.5 volts, replace TP sensor. If voltage changes smoothly from about 0.8 volt to more than 3.5 volts, TP sensor is functioning properly. Test is complete.
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