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Home >> Dodge and Ram >> 1999 >> Caravan Base, 3.3 R >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments >> Throttle Position Sensor >> All Models
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  1. Remove components for access to electrical connector at TP sensor mounted on throttle body. With electrical connector installed on TP sensor, turn ignition on with engine off. DO NOT start engine.
  2. Using digital volt-ohmmeter, measure voltage at center terminal (Orange/Dark Blue wire) on electrical connector for TP sensor with throttle valve closed (idle position). Voltage should be approximately .38-1.20 volts.
  3. Slowly open throttle to full throttle and note voltage reading. Voltage should smoothly increase to approximately 3.10-4.40 volts.
  4. If voltage is not within specification, check for defective terminals or connections at TP sensor and Powertrain Control Module (PCM). The PCM is located between driver's side front fender and power distribution center, near battery.
  5. If terminals or connections are defective, repair as necessary and recheck operation. If terminals or connections are okay, replace TP sensor.
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