OBD Guide

U1512

Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Right Headlamp On LIN Bus

U1512 is an OBD-II diagnostic trouble code meaning: Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Right Headlamp On LIN Bus. Common causes: broken or damaged lin bus wires, poor contact in the right headlight connector. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Right headlight doesn't work
  • Right headlight flashing
  • Dashboard lighting system error
  • Dimming the right headlight
  • Incorrect operation of automatic headlight level control

Causes

  • Broken or damaged LIN bus wires
  • Poor contact in the right headlight connector
  • Right headlight malfunction
  • Problems with the headlight control module
  • Short circuit in LIN circuit

How to Fix

  1. Check the integrity of the LIN bus wiring
  2. Inspect and clean the contacts of the right headlight connector
  3. Check the functionality of the right headlight
  4. Diagnose the headlight control module
  5. Check for module firmware updates

Related codes

FAQ

What does the U1512 code mean?

U1512 is an OBD-II diagnostic trouble code that indicates: Headlamp Control Module/Headlamp Leveling Control Module Lost Communication With Right Headlamp On LIN Bus

What causes a U1512 error code?

The most common causes of U1512 include: Broken or damaged LIN bus wires; Poor contact in the right headlight connector; Right headlight malfunction; Problems with the headlight control module.

How do I fix a U1512 diagnostic trouble code?

To fix U1512: Check the integrity of the LIN bus wiring. Inspect and clean the contacts of the right headlight connector. Check the functionality of the right headlight. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1512?

Limited driving only, diagnose soon

How much does it cost to fix U1512?

The estimated repair cost for U1512 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat