OBD Guide
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B1D01

Headlamp Right Low Beam

B1D01 is an OBD-II diagnostic trouble code meaning: Headlamp Right Low Beam. Common causes: burnt out lamp, bad fuse. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–56 (est.)

Symptoms

  • The right low beam headlight does not work
  • Flashing headlights
  • Dashboard warning

Causes

  • Burnt out lamp
  • Bad fuse
  • Wiring harness damage
  • Contact corrosion
  • Problem with lighting control module

How to Fix

  1. Check the lamp condition
  2. Check fuse
  3. Inspect the wiring harness for damage
  4. Clean contacts from corrosion
  5. Check the operation of the lighting control module

Related codes

B1D00B1D02

FAQ

What does the B1D01 code mean?

B1D01 is an OBD-II diagnostic trouble code that indicates: Headlamp Right Low Beam

What causes a B1D01 error code?

The most common causes of B1D01 include: Burnt out lamp; Bad fuse; Wiring harness damage; Contact corrosion.

How do I fix a B1D01 diagnostic trouble code?

To fix B1D01: Check the lamp condition. Check fuse. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1D01?

Do not drive — repair immediately

How much does it cost to fix B1D01?

The estimated repair cost for B1D01 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat