B0080 moderate

Left Headlight Beam Aim Motor Fault

The B0080 code means the vehicle's onboard diagnostic system has detected: Left Headlight Beam Aim Motor Fault. This is a moderate severity code.

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Keep driving?
Yes, but fix soon
DIY difficulty
hard
Estimated cost
$100 - $450 (parts and labor)
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Common Symptoms

  • Left beam stuck at wrong angle
  • Leveling warning on dashboard
  • Left headlight too high or low
  • Oncoming drivers flashing

Probable Causes (Ranked by Likelihood)

  • Failed beam aim motor Very High
  • Corroded aim motor connector High
  • Stripped aim motor gear Moderate
  • Leveling ECU output fault Low

Step-by-Step Diagnostic Procedure

  1. Test aim motor with scan tool

  2. Inspect connector for corrosion

  3. Verify gear for binding

  4. Check ECU output to left motor

Frequently Asked Questions

Can I manually adjust if motor is broken?

Manual screws exist but auto-leveling may override. Disconnect the motor if needed.

Is the aim motor inside the headlight?

Yes, integrated into the assembly.

How to check headlight aim?

Park 25 feet from a wall. Beam cutoff should be at or slightly below center height.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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