AutoCodes – Chevrolet – B2605 2017 Chevrolet Silverado

B2605 2017 Chevrolet Silverado Code - Right Daytime Running Lamps Control Circuit

Quick Answer

The ambient light sensor is used to monitor outside lighting conditions. Common causes include Faulty Right Headlamp Assembly, Right Headlamp Assembly harness is open or shorted, Right 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: B2605 2017 Chevrolet Silverado indicates Right Daytime Running Lamps Control Circuit.
Common causes: Common causes include Faulty Right Headlamp Assembly, Right Headlamp Assembly harness is open or shorted, Right 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 188

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 B2605 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 B2605 2017 Chevrolet Silverado - Right Daytime Running Lamps Control Circuit - AutoCodes.com — B2605 2017 Chevrolet Silverado Code - Right Daytime Running Lamps Control Circuit

What does this mean?

What are the Possible Causes of the DTC B2605 2017 Chevrolet Silverado?

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

How to Fix the DTC B2605 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

B2605:01 Right Daytime Running Lamps Control Circuit short to Battery
B2605:02 Right Daytime Running Lamps Control Circuit Short to Ground
B2605:04 Right Daytime Running Lamps Control Circuit Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2605 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 B2605 2017 Chevrolet Silverado code?

Need more information on how to fix the B2605 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2605 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 B2605 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B2605 on a 2017 Chevrolet Silverado?

The common symptoms of OBDII code B2605 on a 2017 Chevrolet Silverado include the daytime running lamps on the right side not functioning or flickering.

2. What can cause the OBDII code B2605 to trigger on a 2017 Chevrolet Silverado?

The OBDII code B2605 on a 2017 Chevrolet Silverado is typically triggered by a fault in the right daytime running lamps control circuit, such as a wiring issue or a defective control module.

3. How can I diagnose the right daytime running lamps control circuit issue on my 2017 Chevrolet Silverado?

To diagnose the right daytime running lamps control circuit issue on your 2017 Chevrolet Silverado, you can use a digital multimeter to check for continuity in the wiring, inspect the connections, and test the control module for proper functioning.

4. Are there any simple repair tips for fixing the OBDII code B2605 on a 2017 Chevrolet Silverado?

One simple repair tip for fixing the OBDII code B2605 on a 2017 Chevrolet Silverado is to first check and ensure that the bulbs in the right daytime running lamps are not burnt out before proceeding with more complex troubleshooting.

5. Can a DIY enthusiast fix the OBDII code B2605 issue on a 2017 Chevrolet Silverado?

Depending on your skill level and experience with automotive repair, a DIY enthusiast may be able to fix the OBDII code B2605 issue on a 2017 Chevrolet Silverado by following a detailed repair manual or seeking guidance from online forums.

6. Is it safe to continue driving with the OBDII code B2605 illuminated on a 2017 Chevrolet Silverado?

While the OBDII code B2605 may not affect the overall drivability of the vehicle, it is recommended to address the issue promptly to ensure proper functioning of the right daytime running lamps on your 2017 Chevrolet Silverado.

7. How much does it typically cost to repair the right daytime running lamps control circuit issue causing OBDII code B2605 on a 2017 Chevrolet Silverado?

The cost of repairing the right daytime running lamps control circuit issue causing OBDII code B2605 on a 2017 Chevrolet Silverado can vary depending on the specific cause of the problem, parts needed, and labor rates at the repair facility.

8. What are the possible long-term effects of ignoring the OBDII code B2605 on a 2017 Chevrolet Silverado?

Ignoring the OBDII code B2605 on a 2017 Chevrolet Silverado can lead to safety concerns, reduced visibility while driving, and potential issues with passing vehicle inspections in some regions due to non-functioning daytime running lamps.

9. Can extreme weather conditions contribute to triggering the OBDII code B2605 on a 2017 Chevrolet Silverado?

Extreme weather conditions, such as exposure to moisture or temperature fluctuations, can potentially contribute to triggering the OBDII code B2605 on a 2017 Chevrolet Silverado by causing corrosion or damage to the electrical components in the right daytime running lamps control circuit.

10. Are there any recalls or technical service bulletins related to the OBDII code B2605 issue on a 2017 Chevrolet Silverado?

It is advisable to check with your local Chevrolet dealership or the manufacturer's website to inquire about any recalls or technical service bulletins related to the OBDII code B2605 issue on a 2017 Chevrolet Silverado, as there may be relevant information or remedies provided by the manufacturer.