OBD Guide

U0180

Lost Communication With Automatic Lighting Control Module

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Automatic lighting does not work
  • Headlights turn on only in manual mode
  • Side lights do not turn on automatically
  • Error message on the dashboard
  • Flashing headlights when the engine is running

Causes

  • Open or short circuit in the CAN bus circuit
  • Automatic lighting module malfunction
  • Problems with the wiring harness to the module
  • Oxidation of contacts in connectors
  • Software error in the ECU

How to Fix

  1. Check the integrity of wires and connectors
  2. Diagnose the CAN bus for errors
  3. Check the power supply to the automatic lighting module
  4. Replace the module if a fault is detected
  5. Update ECU software if necessary

Related codes

Error U0180 by Vehicle Brand