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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
P0381low severityPowertrain

Glow Plug/Heater Indicator Circuit

on 2007 Ram 3500 5.9L I6 Cummins · 4WD

What this code means

Malfunction in the glow plug indicator (dashboard wait-to-start light) circuit.

Symptoms

  • Wait-to-start light not working
  • No glow plug indication
  • Light stays on too long

Common causes

  • Burnt out indicator bulb
  • Wiring issue
  • Glow plug module fault
  • Instrument cluster issue

Diagnostic steps

  1. Test indicator bulb
  2. Check wiring
  3. Test glow plug module output

Repair notes

Replace bulb or repair wiring.

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