P0383moderate severityPowertrain

Glow Plug Control Module Control Circuit Low

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

What this code means

Low voltage in glow plug control module circuit.

Symptoms

  • Hard starting
  • Glow plugs not activating

Common causes

  • Short to ground
  • Module failure
  • Wiring damage

Diagnostic steps

  1. Test voltage
  2. Check for shorts
  3. Test module

Repair notes

Repair wiring or replace module.

Other Powertrain codes on this vehicle

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