B2201low severityBody

Rear Parking Sensor Circuit

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

What this code means

Malfunction in the rear parking/proximity sensor system.

Symptoms

  • Rear parking sensors not working
  • Constant false alarm beeping when reversing
  • Parking display shows error
  • Sensor reads incorrectly

Common causes

  • Faulty ultrasonic sensor
  • Sensor obstructed by dirt or snow
  • Wiring damage from trailer hitch installation
  • Module failure
  • Bumper replacement with incorrect sensor gaps

Diagnostic steps

  1. Clean rear sensors thoroughly
  2. Test each sensor with scan tool
  3. Inspect wiring (especially if trailer hitch installed)
  4. Check sensor seating in bumper
  5. Test parking assist module

Repair notes

Replace faulty sensor. Clean sensors. Check for wiring damage from aftermarket trailer hitch.

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 →