U0140high severityNetwork

Lost Communication with Body Control Module

on 2007 Dodge Sprinter 3.5L V6 · FWD

What this code means

Cannot communicate with the BCM.

Symptoms

  • Multiple electrical features inoperative
  • Lighting issues
  • Lock/unlock not working
  • Warning lights on

Common causes

  • BCM power failure
  • CAN bus issue
  • BCM failure
  • Water damage

Diagnostic steps

  1. Check BCM fuses
  2. Test power and ground
  3. Check CAN wiring
  4. Inspect for water damage

Repair notes

Check for water intrusion (common BCM failure cause). Check fuses.

Other Network codes on this vehicle

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