AutoCodes – Chevrolet – B2600 2017 Chevrolet Silverado

B2600 2017 Chevrolet Silverado Code - Left Daytime Running Lamps Control Circuit

Quick Answer

The ambient light sensor is used to monitor outside lighting conditions. Common causes include Faulty Left Headlamp Assembly, Left Headlamp Assembly harness is open or shorted, Left Headlamp Assembly 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: B2600 2017 Chevrolet Silverado indicates Left Daytime Running Lamps Control Circuit.
Common causes: Common causes include Faulty Left Headlamp Assembly, Left Headlamp Assembly harness is open or shorted, Left Headlamp Assembly 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 219

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 May 26, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B2600 2017 Chevrolet Silverado Description

The ambient light sensor is used to monitor outside lighting conditions. The ambient light sensor provides a voltage signal that will vary between 0.2 and 4.9 volts depending on outside lighting conditions. The Body Control Module (BCM) provides a 5-volt reference signal to the ambient light sensor and the Heating, Ventilation, and Air Conditioning (HVAC) control module provides a low reference ground. The BCM monitors the ambient light sensor signal circuit to determine if outside lighting conditions are correct for either Daytime Running Lights (DRL) or Automatic Lamp Control (ALC) when the headlamp switch is in the AUTO position. In daylight conditions, the BCM will command the DRLs ON. During low light conditions, the BCM will command the low beam headlamps ON. Any function or condition that turns on the headlamps will cancel the DRL operation. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a problem in the left DRL control circuit.

OBDII Code B2600 2017 Chevrolet Silverado - Left Daytime Running Lamps Control Circuit - AutoCodes.com — B2600 2017 Chevrolet Silverado Code - Left Daytime Running Lamps Control Circuit

What does this mean?

What are the Possible Causes of the DTC B2600 2017 Chevrolet Silverado?

Faulty Left Headlamp Assembly
Left Headlamp Assembly harness is open or shorted
Left Headlamp Assembly circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2600 2017 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.

What does this mean?

Code Tech Notes

B2600:01 Left Daytime Running Lamps Control Circuit short to Battery
B2600:02 Left Daytime Running Lamps Control Circuit Short to Ground
B2600:04 Left Daytime Running Lamps Control Circuit Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2600 2017 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 B2600 2017 Chevrolet Silverado code?

Need more information on how to fix the B2600 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2600 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 B2600 2017 Chevrolet Silverado Code

1. What are common symptoms of OBDII code B2600 on a 2017 Chevrolet Silverado related to the Left Daytime Running Lamps Control Circuit?

The common symptoms include the left daytime running lamp not functioning properly or remaining off.

2. What could cause the OBDII code B2600 on a 2017 Chevrolet Silverado for the Left Daytime Running Lamps Control Circuit?

Possible causes include a faulty lamp control module, wiring issues, a defective daytime running lamp bulb, or a malfunctioning switch.

3. How can I diagnose the OBDII code B2600 on my 2017 Chevrolet Silverado's Left Daytime Running Lamps Control Circuit?

You can start by inspecting the left daytime running lamp for any visible damage, checking the wiring connections for looseness or corrosion, and using a multimeter to test the circuit for continuity.

4. Can a blown fuse be a reason for the OBDII code B2600 on a 2017 Chevrolet Silverado for the Left Daytime Running Lamps Control Circuit?

Yes, a blown fuse in the daytime running lamp circuit can trigger this code, so it's recommended to check and replace any blown fuses as needed.

5. Is it safe to continue driving my 2017 Chevrolet Silverado with the OBDII code B2600 related to the Left Daytime Running Lamps Control Circuit?

It is not recommended to drive with faulty daytime running lamps as they contribute to the visibility of your vehicle, especially during daytime hours. It's best to address the issue promptly.

6. Can a DIY enthusiast repair the OBDII code B2600 on a 2017 Chevrolet Silverado for the Left Daytime Running Lamps Control Circuit?

Depending on your skill level and access to tools, you may be able to address simpler causes like replacing a bulb or a fuse. However, complex issues might require professional assistance.

7. How much does it typically cost to repair the OBDII code B2600 on a 2017 Chevrolet Silverado for the Left Daytime Running Lamps Control Circuit?

The cost of repair can vary depending on the exact cause of the issue. Simple fixes like replacing a bulb or a fuse can be inexpensive, while more complex repairs involving modules or wiring may cost more.

8. Will resetting the OBDII system clear the B2600 code on a 2017 Chevrolet Silverado related to the Left Daytime Running Lamps Control Circuit?

Resetting the system may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear. It's crucial to diagnose and address the root cause of the problem.

9. Are there any recalls or technical service bulletins related to the OBDII code B2600 on a 2017 Chevrolet Silverado for the Left Daytime Running Lamps Control Circuit?

Check with Chevrolet dealerships or online resources for any relevant recalls or technical service bulletins related to this specific OBDII code to see if there are known issues or solutions provided by the manufacturer.

10. Can extreme weather conditions affect the triggering of the OBDII code B2600 on a 2017 Chevrolet Silverado for the Left Daytime Running Lamps Control Circuit?

Extreme weather conditions, especially moisture or water ingress, can sometimes exacerbate electrical issues related to the left daytime running lamps control circuit, potentially leading to the triggering of this OBDII code.