OBD Guide

U0501

Invalid Data Received From Door Control Module B

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Power windows do not work on certain doors
  • Problems with central locking
  • Errors on the dashboard
  • Incorrect operation of door lights

Causes

  • Door control module B fault
  • Damage to the wiring harness to the module
  • Poor contact in connectors
  • Module software error
  • Module power problems

How to Fix

  1. Check module connections and connectors
  2. Check the integrity of the wiring harness
  3. Test the power supply and ground of the module
  4. Flash or replace the control module
  5. Check the CAN bus for damage

Related codes

Error U0501 by Vehicle Brand