AutoCodes – Generic – B2498

B2498 Code - Headlamp Switch Multiple Signals Input Active

Quick Answer

The Smart Junction Box (SJB) sends voltage signals to the headlamp switch to monitor the OFF, PARKING LAMPS ON and HEADLAMPS ON positions. Common causes include Faulty Headlamp Switch, Headlamp Switch harness is open or shorted, Headlamp Switch 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: B2498 indicates Headlamp Switch Multiple Signals Input Active.
Common causes: Common causes include Faulty Headlamp Switch, Headlamp Switch harness is open or shorted, Headlamp Switch 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 1,299

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 Feb 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2498 Description

The Smart Junction Box (SJB) sends voltage signals to the headlamp switch to monitor the OFF, PARKING LAMPS ON and HEADLAMPS ON positions. At any given time, the headlamp switch routes one of the input circuits to ground. When the SJB detects the headlamp switch in the HEADLAMPS ON position with the multifunction switch in the LOW BEAM position, the SJB provides voltage to the LH and RH low beam headlamps. The Diagnostic Trouble Code (DTC) set when the SJB detects multiple headlamp switch inputs active at the same time.

OBDII Code B2498 - Headlamp Switch Multiple Signals Input Active - AutoCodes.com — B2498 Code - Headlamp Switch Multiple Signals Input Active

What does this mean?

What are the Possible Causes of the DTC B2498?

Faulty Headlamp Switch
Headlamp Switch harness is open or shorted
Headlamp Switch circuit poor electrical connection
Faulty Smart Junction Box (SJB)

How to Fix the DTC B2498?

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 B2498 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 B2498 code?

Need more information on how to fix the B2498 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2498 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2498 Ford — Headlamp Switch Multiple Signals Input Active
B2498 Lincoln — Headlamp Switch Multiple Signals Input Active
B2498 Mercury — Headlamp Switch Multiple Signals Input Active

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 B2498 Code

1. What are the common symptoms of OBDII code B2498 (Headlamp Switch Multiple Signals Input Active)?

- The common symptoms include malfunctioning headlamps, flickering lights, or the inability to control the headlights properly.

2. What are the possible causes of OBDII code B2498?

- The code B2498 can be caused by a faulty headlamp switch, wiring issues, or a malfunction in the headlamp control module.

3. How can I diagnose OBDII code B2498?

- Diagnosing this code typically involves checking the headlamp switch, inspecting the wiring for any damage, and testing the headlamp control module for proper functionality.

4. Can a DIY enthusiast repair OBDII code B2498 at home?

- While some basic troubleshooting steps can be performed at home, repairing this code might require specialized tools and expertise. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

5. Is it safe to drive with OBDII code B2498 present?

- Driving with this code present may pose a safety risk due to potential headlamp malfunctions. It is advisable to address the issue promptly to ensure proper functioning of the headlights.

6. What are the repair options for OBDII code B2498?

- Repair options may include replacing the headlamp switch, repairing or replacing damaged wiring, or reprogramming the headlamp control module, depending on the underlying cause of the code.

7. How much does it typically cost to repair OBDII code B2498?

- The cost of repairing this code can vary depending on the extent of the issue, the parts needed, and the labor rates of the repair shop. It is recommended to obtain a few quotes from different mechanics to compare prices.

8. Can a low battery voltage trigger OBDII code B2498?

- Yes, a low battery voltage can potentially trigger this code as it may affect the proper functioning of the headlamp system. It is advisable to check the battery voltage as part of the diagnostic process.

9. Are there any preventive measures to avoid OBDII code B2498 in the future?

- Regularly inspecting the headlamp system, ensuring proper maintenance of the headlamp switch, and promptly addressing any lighting issues can help prevent the occurrence of this code in the future.