AutoCodes – Generic – B2249

B2249 Code - Head Lamp Relay Coil Short To Battery

Quick Answer

The Body Control Module (BCM) monitors the Head Lamp Relay. Common causes include Faulty Head Lamp Relay, Head Lamp Relay harness is open or shorted, Head Lamp Relay circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B2249 indicates Head Lamp Relay Coil Short To Battery.
Common causes: Common causes include Faulty Head Lamp Relay, Head Lamp Relay harness is open or shorted, Head Lamp Relay circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 4,259

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2249 Description

The Body Control Module (BCM) monitors the Head Lamp Relay. The BCM sets the OBDII code when the Head Lamp Relay is not to factory specifications.

OBDII Code B2249 - Head Lamp Relay Coil Short To Battery - AutoCodes.com — B2249 Code - Head Lamp Relay Coil Short To Battery

What does this mean?

What are the Possible Causes of the DTC B2249?

Faulty Head Lamp Relay
Head Lamp Relay harness is open or shorted
Head Lamp Relay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2249?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2249 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B2249 code?

Need more information on how to fix the B2249 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2249 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2249 Ford — Head Lamp Relay Coil Short To Battery
B2249 Lincoln — Head Lamp Relay Coil Short To Battery
B2249 Mercury — Head Lamp Relay Coil Short To Battery

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2249 Code

1. What are the common symptoms of OBDII code B2249 (Head Lamp Relay Coil Short To Battery)?

The common symptoms of this code may include malfunctioning or non-working headlamps, flickering headlights, or headlamps that stay on even when the vehicle is turned off.

2. What are the possible causes of OBDII code B2249?

Possible causes of this code could be a short circuit in the headlamp relay coil to the battery, a faulty headlamp relay, damaged wiring, or a malfunctioning headlamp switch.

3. How can I diagnose the issue related to OBDII code B2249?

To diagnose the issue, you can use a diagnostic scanner to read the trouble codes, inspect the headlamp relay and associated wiring for any visible damage, and perform a continuity test to check for short circuits.

4. Can I still drive my vehicle with OBDII code B2249 present?

It is not recommended to drive your vehicle with this code present, as it can affect your visibility on the road and compromise safety. It's best to address the issue promptly.

5. How can I repair OBDII code B2249 (Head Lamp Relay Coil Short To Battery)?

To repair this code, you may need to replace the headlamp relay, repair any damaged wiring, and clear the trouble codes using a diagnostic scanner. Ensure all connections are secure and functioning properly.

6. Is it possible for a DIY enthusiast to fix OBDII code B2249?

Depending on your level of automotive repair knowledge and experience, you may be able to fix this code as a DIY project. Just make sure to follow the manufacturer's guidelines and use the appropriate tools.

7. Will resetting the trouble codes make OBDII code B2249 go away permanently?

Resetting the trouble codes may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear. It's important to diagnose and fix the root cause of the problem.

8. Can extreme weather conditions cause OBDII code B2249 to trigger?

While extreme weather conditions may not directly cause this specific OBDII code, they can exacerbate existing electrical issues in the vehicle, potentially leading to problems like a headlamp relay coil short to battery.

9. How much does it typically cost to repair OBDII code B2249 at a mechanic or dealership?

The cost of repairing this code can vary depending on the labor rates in your area, the extent of the damage, and the cost of parts needed. It's advisable to obtain quotes from different mechanics or dealerships for an accurate estimate.

10. Are there any preventive measures to avoid OBDII code B2249 in the future?

Regularly inspecting and maintaining your vehicle's electrical system, including the headlamp relay and wiring, can help prevent issues like OBDII code B2249. Addressing any electrical problems promptly can also help avoid more serious issues down the line.