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2005 RAM 3500
5.9L I6 Cummins•4WD•diesel•ISB•turbo
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Repairs0Labor523Torque138Fluid11DTC1684Battery1Maintenance0Recalls0
P2409low severityPowertrain

Evaporative Emission System Purge Control Valve Circuit/Open

on 2005 Ram 3500 5.9L I6 Cummins · 4WD

What this code means

The computer detects an open or fault in the EVAP purge control valve circuit. This can prevent proper venting of fuel vapors from the charcoal canister.

Symptoms

  • Check engine light on
  • Fuel odor near vehicle
  • Failed emissions test

Common causes

  • Faulty purge control valve
  • Open or shorted circuit wiring
  • Corroded valve connector
  • PCM driver fault

Diagnostic steps

  1. Scan for EVAP related codes
  2. Check purge valve connector and wiring
  3. Test valve resistance and operation
  4. Replace purge valve if defective
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