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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
P2502high severityPowertrain

Charging System Voltage

on 2007 Ram 3500 5.9L I6 Cummins · 4WD

What this code means

The system charging voltage is outside the expected regulation window.

Symptoms

  • Battery light
  • Check engine light
  • Electrical accessories malfunction
  • Battery drains overnight

Common causes

  • Failed alternator
  • Loose drive belt
  • Battery terminal corrosion
  • ECM-controlled charging fault

Diagnostic steps

  1. Check battery voltage engine off and running
  2. Inspect belt tension and condition
  3. Load test alternator
  4. Check battery terminals

Repair notes

Replace alternator or battery. Clean terminals. Check belt.

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