OBD Guide
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B2505

Left Lamp High Beam Circuit Failure

B2505 is an OBD-II diagnostic trouble code meaning: Left Lamp High Beam Circuit Failure. Common causes: burnt out lamp, broken or damaged wiring harness. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Left high beam headlight does not work
  • Flashing or uneven headlight operation
  • Check Engine light comes on

Causes

  • Burnt out lamp
  • Broken or damaged wiring harness
  • Faulty relay
  • Fuse problems
  • Oxidation of contacts
  • Control unit malfunction

How to Fix

  1. Check the condition of the lamp and replace if necessary
  2. Inspect the wiring harness for damage
  3. Check relays and fuses
  4. Clean contacts from oxidation
  5. Check circuit operation using a diagnostic scanner

Related codes

B2506B2504B2503

FAQ

What does the B2505 code mean?

B2505 is an OBD-II diagnostic trouble code that indicates: Left Lamp High Beam Circuit Failure

What causes a B2505 error code?

The most common causes of B2505 include: Burnt out lamp; Broken or damaged wiring harness; Faulty relay; Fuse problems.

How do I fix a B2505 diagnostic trouble code?

To fix B2505: Check the condition of the lamp and replace if necessary. Inspect the wiring harness for damage. Check relays and fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2505?

Limited driving only, diagnose soon

How much does it cost to fix B2505?

The estimated repair cost for B2505 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat