OBD Guide

B0984

Left Headlamp Light Distribution Shutter Control Circuit Malfunction

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect distribution of light from the left headlight
  • Left headlight blinking or turning off
  • Error message on the dashboard

Causes

  • Open or short circuit in wiring harness
  • Malfunction of the solenoid valve (solenoid)
  • Problems with the curtain mechanism
  • Malfunction of the headlight control unit

How to Fix

  1. Check wiring harness for damage
  2. Test the solenoid valve (solenoid)
  3. Inspect the curtain mechanism for jamming
  4. Check the operation of the headlight control unit
  5. Replace faulty components

Related codes

Error B0984 by Vehicle Brand