OBD Guide
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B2586

High Beams Are Inoperative

B2586 is an OBD-II diagnostic trouble code meaning: High Beams Are Inoperative. Common causes: burnt out high beam lamp, faulty high beam relay. Estimated repair cost: $11–56.

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

Symptoms

  • High beam does not turn on
  • High beam works intermittently
  • Dashboard warning for headlight fault

Causes

  • Burnt out high beam lamp
  • Faulty high beam relay
  • Open or shorted wiring harness
  • Body Control Module (BCM) Problems
  • High beam switch malfunction

How to Fix

  1. Check high beam lamps and replace if necessary
  2. Check high beam relay
  3. Inspect the wiring harness for damage
  4. Check the operation of the high beam switch
  5. Scan BCM for errors

Related codes

B2585B2587B2588

FAQ

What does the B2586 code mean?

B2586 is an OBD-II diagnostic trouble code that indicates: High Beams Are Inoperative

What causes a B2586 error code?

The most common causes of B2586 include: Burnt out high beam lamp; Faulty high beam relay; Open or shorted wiring harness; Body Control Module (BCM) Problems.

How do I fix a B2586 diagnostic trouble code?

To fix B2586: Check high beam lamps and replace if necessary. Check high beam relay. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2586?

Limited driving only, diagnose soon

How much does it cost to fix B2586?

The estimated repair cost for B2586 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat