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2001 RAM 1500
3.9L V6•RWD•gas•Magnum
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Repairs0Labor511Torque139Fluid9DTC1680Battery1Maintenance0Recalls0
P0989moderate severityPowertrain

Transmission Fluid Pressure Sensor/Switch E Circuit High

on 2001 Ram 1500 3.9L V6 · RWD

What this code means

The PCM detected a high voltage signal from the transmission fluid pressure sensor/switch E. This can cause incorrect pressure control and shifting problems.

Symptoms

  • Harsh shifts
  • Erratic shift behavior
  • Check engine light on

Common causes

  • Faulty fluid pressure sensor E
  • Open circuit in wiring
  • Poor connector contact
  • Faulty PCM/TCM

Diagnostic steps

  1. Retrieve stored codes
  2. Inspect sensor wiring for opens
  3. Check connector for corrosion
  4. Test sensor signal and reference voltage
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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