OBD Guide

B1696

Autolamp On Circuit Short To Ground

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$22–111 (est.)

Symptoms

  • Automatic headlights don't work
  • The malfunction indicator on the instrument panel is on
  • Problems with other electrical systems

Causes

  • Wiring harness damage
  • Short circuit in the circuit
  • Auto light relay malfunction
  • Problems with the control unit
  • Contact corrosion

How to Fix

  1. Check the wiring harness for damage
  2. Check automatic lighting relay
  3. Check the circuit for short circuit using a multimeter
  4. Check contacts for corrosion
  5. Replace damaged components if necessary

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