AutoCodes – Generic – B2472

B2472 Code - Fog Lamp Switch Failure

Quick Answer

The Body Control Module (BCM) monitors the Fog Lamp Switch. Common causes include Faulty Fog Lamp Switch, Fog Lamp Switch harness is open or shorted, Fog Lamp 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: B2472 indicates Fog Lamp Switch Failure.
Common causes: Common causes include Faulty Fog Lamp Switch, Fog Lamp Switch harness is open or shorted, Fog Lamp 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 3,878

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 Dec 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2472 Description

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

OBDII Code B2472 - Fog Lamp Switch Failure - AutoCodes.com — B2472 Code - Fog Lamp Switch Failure

What does this mean?

What are the Possible Causes of the DTC B2472?

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

How to Fix the DTC B2472?

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 B2472 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 B2472 code?

Need more information on how to fix the B2472 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2472 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2472 Buick — Low Beam Output Fault
B2472 Cadillac — Low Beam Output Fault
B2472 Chevrolet — Low Beam Output Fault
B2472 GMC — Low Beam Output Fault

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 B2472 Code

1. What are the common symptoms of OBDII code B2472 (Fog Lamp Switch Failure)?

The common symptoms include non-functioning fog lamps, the inability to turn on or off the fog lamps, and illuminated dashboard warning lights related to the fog lamp system.

2. What typically causes OBDII code B2472 to be triggered?

The code B2472 is usually triggered by a malfunction in the fog lamp switch itself, such as internal electrical issues, wear and tear, or physical damage.

3. How can I diagnose the fog lamp switch failure associated with OBDII code B2472?

Diagnosing the issue involves checking the fog lamp switch for proper functionality, inspecting the wiring and connections related to the fog lamp system, and using a diagnostic tool to retrieve the specific error code.

4. Can a faulty fog lamp switch cause other problems in the vehicle?

While a faulty fog lamp switch itself may not directly cause significant issues, it can affect visibility in certain driving conditions, compromising safety. Additionally, it may lead to other electrical problems if left unresolved.

5. Is it safe to continue driving with OBDII code B2472 triggered?

It is generally safe to drive with the fog lamp switch failure, but it is recommended to address the issue promptly to ensure proper functionality of the fog lamps, especially in low visibility conditions.

6. How can I repair OBDII code B2472 related to fog lamp switch failure?

Repairing the issue may involve replacing the fog lamp switch with a new one, addressing any wiring or connection problems, and clearing the error code using a diagnostic tool.

7. Are there any DIY tips for troubleshooting OBDII code B2472 at home?

DIY troubleshooting tips include checking the fuse related to the fog lamp system, inspecting the fog lamp bulbs for any damage, and ensuring the fog lamp switch is receiving power and functioning correctly.

8. Can a mechanic help with fixing OBDII code B2472 if I am unable to do it myself?

Yes, a qualified mechanic can assist in diagnosing and repairing the fog lamp switch failure associated with OBDII code B2472, ensuring proper functioning of the fog lamps in your vehicle.

9. How long does it typically take to repair OBDII code B2472 caused by fog lamp switch failure?

The repair time can vary depending on the extent of the issue and the availability of replacement parts. In general, repairing the fog lamp switch failure can take anywhere from 1-2 hours.

10. Will fixing OBDII code B2472 related to fog lamp switch failure be expensive?

The cost of repairing OBDII code B2472 can vary based on the specific cause of the issue, the labor rates of the repair shop, and the cost of replacement parts. However, it is usually a relatively affordable repair compared to more complex automotive problems.