AutoCodesChevrolet – B258A 2014 Chevrolet Silverado

B258A 2014 Chevrolet Silverado Code - Low Beam Control Circuit

Quick Answer

With the headlamp switch in the ON position, the headlamp switch headlamp ON signal circuit is grounded through the headlamp switch. Common causes include Blown Low Beam Headlamp Fuse, Low Beam Headlamp Fuse harness is open or shorted, Low Beam Headlamp Fuse 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
B258A 2014 Chevrolet Silverado indicates Low Beam Control Circuit.
Common causes
Common causes include Blown Low Beam Headlamp Fuse, Low Beam Headlamp Fuse harness is open or shorted, Low Beam Headlamp Fuse 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 304
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 26, 2023
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Code B258A 2014 Chevrolet Silverado Description

With the headlamp switch in the ON position, the headlamp switch headlamp ON signal circuit is grounded through the headlamp switch. The Body Control Module (BCM) responds by applying ground to the low beam relay control circuit which energizes the low beam relay. With the low beam relay energized, the switch contacts close allowing battery voltage to flow through the low beam fuses to the low beam control circuits illuminating the low beam headlamps. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a problem in the headlamp low beam relay control circuit.
OBDII Code B258A 2014 Chevrolet Silverado - Low Beam Control Circuit - AutoCodes.com
B258A 2014 Chevrolet Silverado Code - Low Beam Control Circuit

What are the Possible Causes of the DTC B258A 2014 Chevrolet Silverado?

  • Blown Low Beam Headlamp Fuse
  • Low Beam Headlamp Fuse harness is open or shorted
  • Low Beam Headlamp Fuse circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B258A 2014 Chevrolet Silverado?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B258A 2014 Chevrolet Silverado 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 B258A 2014 Chevrolet Silverado code?

Need more information on how to fix the B258A 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 B258A 2014 Chevrolet Silverado Code

1. What does the OBDII code B258A mean on a 2014 Chevrolet Silverado?

The B258A code indicates an issue in the low beam control circuit, which may prevent proper functionality of the low beam headlights.

2. What are the common symptoms of code B258A on a 2014 Chevrolet Silverado?

Symptoms include one or both low beam headlights not working, flickering headlights, or the headlights staying on when they shouldn’t.

3. What causes the B258A code to appear on a 2014 Chevrolet Silverado?

Common causes include a faulty headlight bulb, damaged wiring or connectors, a malfunctioning headlight relay, or a defective Body Control Module (BCM).

4. How can I diagnose the B258A code on my Silverado?

Start by visually inspecting the low beam bulbs, wiring, and connectors. Use a multimeter to check for proper voltage and continuity in the low beam circuit, and scan for additional trouble codes.

5. Can a bad low beam headlight bulb trigger the B258A code?

Yes, a burned-out or faulty low beam bulb can cause the B258A code, as the circuit may detect an open or insufficient current.

6. How do I fix the B258A code on a 2014 Chevrolet Silverado?

Repairs may include replacing the faulty bulb, repairing damaged wiring or connectors, replacing a defective relay, or reprogramming or replacing the BCM if necessary.

7. Can I still drive my Silverado with the B258A code active?

While you can drive with this code active, it’s unsafe to do so at night or in low-visibility conditions due to the potential loss of low beam headlight functionality.

8. How much does it cost to repair the B258A code on a 2014 Chevrolet Silverado?

Repair costs vary but typically range from $20 for a new bulb to $400 or more if the BCM requires replacement or reprogramming.

9. Is the B258A code related to other headlight issues?

Yes, this code specifically pertains to the low beam circuit but could also overlap with other headlight-related codes or faults if the wiring or BCM is involved.

10. Can a weak battery cause the B258A code on my Silverado?

A weak or failing battery can cause voltage irregularities, which might affect the low beam control circuit and trigger the B258A code.

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