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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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Repairs0Labor519Torque3583Fluid10DTC1035Battery1Maintenance0Recalls16
C1020moderate severityChassis

Battery Voltage Low

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

What this code means

The ABS/ESP module detects system voltage below the operating threshold. Low voltage can cause stability and brake systems to shut down.

Symptoms

  • ABS and ESP lights on
  • Warning messages on cluster
  • Intermittent system dropout

Common causes

  • Weak or discharged battery
  • Failing alternator
  • Corroded battery terminals
  • Poor ground connection

Diagnostic steps

  1. Test battery state of charge
  2. Check alternator output
  3. Inspect terminals and grounds
  4. Measure voltage at ABS module
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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