B2224moderate severityBody

Battery Voltage High

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

What this code means

The module detected system voltage above the acceptable range, indicating an overcharge condition. No direct OBD P-code equivalent exists for this body code.

Symptoms

  • Warning lights on
  • Bright or flickering lights
  • Modules acting erratically

Common causes

  • Faulty voltage regulator
  • Overcharging alternator
  • Bad ground connection
  • Faulty PCM control

Diagnostic steps

  1. Measure charging system voltage
  2. Inspect alternator regulator
  3. Check ground connections
  4. Repair overcharge fault and clear codes

Other Body codes on this vehicle

🔧 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.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
🔓 LIBERATED FOREVER
The 2014 Ram 2500 6.7L I6 Cummins Diesel repair data is free for every DIYer and shop on earth, permanently, because Lost Pines Precision Automotive, Bastrop, TX paid $99 to unlock it.
Mitchell1 charges $169/mo for this. ALLDATAdiy charges $30/yr per vehicle. Open Labor Project is free permanently, because of community sponsors like Lost.
Free another vehicle →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →