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2007 RAM 3500
5.9L I6 Cummins•4WD•diesel•ISB•turbo
1 active safety recall on this vehicle — view recalls🏆Sponsored by Timmehster
Repairs487Labor523Torque138Fluid11DTC1714Battery1Maintenance0Recalls1
P0791moderate severityPowertrain

Intermediate Shaft Speed Sensor Circuit

on 2007 Ram 3500 5.9L I6 Cummins · 4WD

What this code means

The intermediate shaft speed sensor signal is out of range or missing. This affects the transmission's ability to accurately time shifts.

Symptoms

  • Harsh or erratic shifting
  • Transmission warning light on
  • Speedometer may read incorrectly

Common causes

  • Faulty intermediate shaft speed sensor
  • Damaged sensor wiring or connector
  • Metal debris on sensor tip
  • Faulty transmission control module

Diagnostic steps

  1. Scan for related transmission codes
  2. Inspect sensor connector and wiring
  3. Check sensor resistance against spec
  4. Test signal output with scope while driving
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