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Home >> Dodge and Ram >> 1996 >> Caravan Base, 2.4 B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.4L >> No Trouble Code Tests >> Test NTC-5A - Checking Throttle Position Sensor Calibration

Test NTC-5A - Checking Throttle Position Sensor Calibration

NOTE: Perform TEST NTC-1A or NTC-4A before proceeding.
  1. Turn ignition off. Check throttle cable, cruise control cable (if equipped) and throttle valve on throttle body for binding. If binding exists, repair or replace components as necessary. Perform TEST VER-2A. If no binding exists, go to next step.
  2. Turn ignition on. Using scan tool, read throttle position sensor voltage. Ensure throttle is fully closed and against throttle stop when reading throttle position sensor voltage.
  3. If throttle position sensor voltage is not 1.5 volts or less with throttle closed, replace throttle position sensor. Perform TEST VER-2A. If throttle position sensor voltage is 1.5 volts or less with throttle closed, go to next step.
  4. Observe throttle position sensor voltage on scan tool while slowly opening throttle to wide open position. If throttle position sensor voltage does not change smoothly while opening throttle, replace throttle position sensor. Perform TEST VER-2A. If throttle position sensor voltage changes smoothly while opening throttle, go to next step.
  5. If maximum throttle position sensor voltage is not at least 3.4 volts at wide open throttle, replace throttle position sensor. Perform TEST VER-2A. If maximum throttle position sensor voltage is at least 3.4 volts at wide open throttle, throttle position sensor is operating normally. Test is complete.
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