OBD Guide

B1694

Autolamp On Circuit Open

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Automatic headlights don't work
  • Headlights do not turn on in low light conditions
  • Error message on the dashboard

Causes

  • Broken wire in the wiring harness
  • Light sensor malfunction
  • Problems with the headlight control module
  • Short circuit in the circuit
  • Faulty relay or fuse

How to Fix

  1. Check the integrity of the wiring harness
  2. Check light sensor
  3. Check the headlight control module
  4. Check relays and fuses
  5. Replace faulty components

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