OBD Guide
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B2249

Head Lamp Relay Coil Short To Battery

B2249 is an OBD-II diagnostic trouble code meaning: Head Lamp Relay Coil Short To Battery. Common causes: short circuit in wiring harness, faulty headlight relay. Estimated repair cost: $22–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Headlights won't turn on or off
  • Constantly burning headlights
  • Blown headlight circuit fuses

Causes

  • Short circuit in wiring harness
  • Faulty headlight relay
  • Corrosion of relay contacts
  • Damage to the control unit

How to Fix

  1. Check the condition of the headlight relay
  2. Inspect the wiring harness for damage
  3. Check relay contacts and connectors
  4. Replace relay if necessary
  5. Check the control unit for errors

Related codes

B2248B2250B2251

FAQ

What does the B2249 code mean?

B2249 is an OBD-II diagnostic trouble code that indicates: Head Lamp Relay Coil Short To Battery

What causes a B2249 error code?

The most common causes of B2249 include: Short circuit in wiring harness; Faulty headlight relay; Corrosion of relay contacts; Damage to the control unit.

How do I fix a B2249 diagnostic trouble code?

To fix B2249: Check the condition of the headlight relay. Inspect the wiring harness for damage. Check relay contacts and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2249?

Limited driving only, diagnose soon

How much does it cost to fix B2249?

The estimated repair cost for B2249 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat