B0204low severityBody

Power Window Master Switch Circuit

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

What this code means

Malfunction in the driver master power window switch assembly that controls all vehicle windows.

Symptoms

  • Multiple windows not responding from driver switch
  • One-touch feature not working
  • Window lock button inoperative
  • Intermittent window control

Common causes

  • Faulty master switch assembly
  • Corroded switch contacts
  • Spilled liquid in switch
  • Wiring issue at switch connector

Diagnostic steps

  1. Test each switch function
  2. Check switch connector
  3. Test voltage at switch inputs
  4. Swap with known-good switch if available
  5. Check for corrosion in switch

Repair notes

Replace master power window switch assembly.

Other Body codes on this vehicle

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