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2014 RAM 2500
6.7L I6 Cummins Diesel•4WD•AUTOMATIC•diesel•turbo
16 active safety recalls on this vehicle — view recalls🏆Sponsored by Anonymous Sponsor
Repairs436Labor519Torque3583Fluid10DTC1737Battery1Maintenance0Recalls16
P0803low severityPowertrain

1-4 Upshift (Skip Shift) Solenoid Control Circuit

on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD

What this code means

A fault exists in the 1-4 upshift (skip shift) solenoid control circuit used on manual transmissions to force an economy shift. The circuit may be open, shorted, or the solenoid failed.

Symptoms

  • Skip shift light illuminated
  • Check engine light on
  • Forced upshift not working

Common causes

  • Faulty skip shift solenoid
  • Open or short in control wiring
  • Corroded or damaged connector
  • Faulty PCM output driver

Diagnostic steps

  1. Retrieve stored codes and freeze frame
  2. Inspect solenoid wiring and connector
  3. Measure solenoid resistance
  4. Verify PCM control signal and ground
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