OBD Guide
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B2499

Courtesy Lamp Output Failure

B2499 is an OBD-II diagnostic trouble code meaning: Courtesy Lamp Output Failure. Common causes: burnt out lamp, open or shorted wiring harness. Estimated repair cost: $6–56.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Interior lighting does not work
  • Flashing light
  • The lamp does not turn on when the doors are opened

Causes

  • Burnt out lamp
  • Open or shorted wiring harness
  • Control unit malfunction
  • Door switch problems

How to Fix

  1. Check the lamp in the ceiling lamp
  2. Inspect the wiring harness for damage
  3. Check the operation of the door switch
  4. Test the control unit

FAQ

What does the B2499 code mean?

B2499 is an OBD-II diagnostic trouble code that indicates: Courtesy Lamp Output Failure

What causes a B2499 error code?

The most common causes of B2499 include: Burnt out lamp; Open or shorted wiring harness; Control unit malfunction; Door switch problems.

How do I fix a B2499 diagnostic trouble code?

To fix B2499: Check the lamp in the ceiling lamp. Inspect the wiring harness for damage. Check the operation of the door switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2499?

Limited driving only, diagnose soon

How much does it cost to fix B2499?

The estimated repair cost for B2499 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat