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2013 RAM 2500
6.7L I6 Cummins Diesel•4WD•AUTOMATIC•diesel•turbo
16 active safety recalls on this vehicle — view recalls
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Repairs0Labor519Torque3583Fluid10DTC1788Battery1Maintenance0Recalls16
P2537low severityPowertrain

Ignition Switch Accessory Position Circuit

on 2013 Ram 2500 6.7L I6 Cummins Diesel · 4WD

What this code means

The module detected a fault in the ignition switch accessory position input circuit. The accessory position signal is missing, low, or high.

Symptoms

  • Accessories not working
  • Warning light on
  • Intermittent electrical faults

Common causes

  • Faulty ignition switch
  • Wiring or connector fault
  • Corroded terminals
  • Failed control module

Diagnostic steps

  1. Scan for stored codes
  2. Test ignition switch accessory signal
  3. Inspect related wiring
  4. Replace ignition switch if needed
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