Engine-CodesChevrolet – B1277 2016 Chevrolet Silverado

B1277 2016 Chevrolet Silverado Code - Microphone 1 Input Signal Circuit

Quick Answer

The B1277 code on a 2016 Chevrolet Silverado indicates a problem with the Microphone 1 Input Signal Circuit. Common causes include Faulty microphone unit, Wiring or connection issues in the microphone circuit, Water or moisture damage to the microphone system. 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
B1277 2016 Chevrolet Silverado indicates Microphone 1 Input Signal Circuit.
Common causes
Common causes include Faulty microphone unit, Wiring or connection issues in the microphone circuit, Water or moisture damage to the microphone system.
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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1277 2016 Chevrolet Silverado Description

The B1277 code on a 2016 Chevrolet Silverado indicates a problem with the Microphone 1 Input Signal Circuit. This code is specifically related to the microphone system in the vehicle, which is responsible for capturing voice commands for features such as hands-free calling, voice-activated controls, and in-car communication systems. When this circuit malfunctions, it can lead to issues with the microphone's ability to pick up sound, resulting in a loss of functionality for these features.

OBDII Code B1277 2016 Chevrolet Silverado - Microphone 1 Input Signal Circuit
B1277 2016 Chevrolet Silverado Code - Microphone 1 Input Signal Circuit

Common Causes of B1277 2016 Chevrolet Silverado

  1. Faulty microphone unit
  2. Wiring or connection issues in the microphone circuit
  3. Water or moisture damage to the microphone system
  4. Electrical problems in the communication system
  5. Software glitches affecting the microphone input signal

Symptoms of B1277 2016 Chevrolet Silverado

  1. Inability to use voice-activated controls effectively
  2. Poor call quality during hands-free phone calls
  3. Error messages related to the microphone system
  4. Loss of functionality for in-car communication features

How to Fix B1277 2016 Chevrolet Silverado

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to pinpoint the source of the problem.
  2. Inspect the microphone unit and its connections for any visible damage or loose wiring. Replace or repair any faulty components.
  3. Check for water or moisture damage in the microphone system and address any issues found.
  4. Test the electrical components of the communication system to ensure proper functionality and repair any faulty parts.
  5. Update the software of the vehicle's infotainment system to resolve any software-related issues affecting the microphone input signal.

Cost to Fix B1277 2016 Chevrolet Silverado

The cost of repairing the Microphone 1 Input Signal Circuit can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the repair costs for this type of problem can range from $100 to $300, including parts and labor. However, it's important to note that the actual cost may be higher or lower based on factors such as the location of the repair shop, the make and model of the vehicle, and the complexity of the repair process. Additionally, diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. It's recommended to consult with a professional technician to get a more accurate estimate based on the specific circumstances of the vehicle.

Tech Notes for B1277 2016 Chevrolet Silverado

Installation of aftermarket replacement speakers, additional speakers/subwoofers, or aftermarket exhaust systems can cause undesirable behavior of the active noise cancellation system. The noise reduction microphones have foam blocks above them to seal the microphones and aid in the reduction of headliner vibration. Missing or out of place foam blocks can impact system performance.

Need more information about the B1277 2016 Chevrolet Silverado code?

Need more information on how to fix the B1277 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1277 2016 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 B1277 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B1277 on a 2016 Chevrolet Silverado related to Microphone 1 Input Signal Circuit?

The common symptoms include issues with the microphone system, such as no sound input or poor audio quality during phone calls or voice commands.

2. What are the potential causes of OBDII code B1277 on a 2016 Chevrolet Silverado?

Potential causes include a faulty microphone, damaged wiring or connectors in the microphone circuit, or issues with the audio control module.

3. How can I diagnose the Microphone 1 Input Signal Circuit issue causing OBDII code B1277 on my 2016 Chevrolet Silverado?

You can start by checking the microphone connections, inspecting the wiring for any visible damage, and testing the microphone itself for functionality. If necessary, use a multimeter to check for continuity in the circuit.

4. Can I repair the Microphone 1 Input Signal Circuit problem causing OBDII code B1277 myself?

Depending on your skill level and access to tools, you may be able to repair the issue yourself by replacing the microphone, fixing any damaged wiring, or addressing the audio control module if needed.

5. Are there any simple tips to troubleshoot the Microphone 1 Input Signal Circuit issue on a 2016 Chevrolet Silverado?

You can try resetting the audio system, checking for any software updates related to the microphone system, and ensuring that there are no obstructions blocking the microphone.

6. Is it safe to continue driving my 2016 Chevrolet Silverado with OBDII code B1277 related to Microphone 1 Input Signal Circuit?

While the issue may not affect the overall drivability of the vehicle, it is recommended to address the problem to ensure proper functionality of the microphone system for communication and voice commands.

7. How much does it typically cost to repair the Microphone 1 Input Signal Circuit issue causing OBDII code B1277 on a 2016 Chevrolet Silverado?

The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing the microphone, repairing wiring, or addressing issues with the audio control module. It's advisable to consult a professional for an accurate estimate.

8. Can extreme temperatures or humidity affect the Microphone 1 Input Signal Circuit on a 2016 Chevrolet Silverado?

Extreme temperatures and humidity can potentially impact the performance of the microphone system, leading to issues like poor audio quality or intermittent signal loss.

9. Will disconnecting the battery reset the OBDII code B1277 related to Microphone 1 Input Signal Circuit on a 2016 Chevrolet Silverado?

Disconnecting the battery may temporarily clear the code, but if the underlying issue with the Microphone 1 Input Signal Circuit is not addressed, the code is likely to reappear after some time.

10. Is the Microphone 1 Input Signal Circuit issue covered under warranty for a 2016 Chevrolet Silverado?

Depending on the warranty status of your vehicle, the Microphone 1 Input Signal Circuit issue may be covered under certain warranties, such as the manufacturer's warranty or an extended warranty plan. It's advisable to check with your dealership or warranty provider for specific coverage details.

Discuss the causes and fixes for B1277 2016 Chevrolet Silverado OBDII Code

Code B1277 2016 Chevrolet Silverado comments

No comments found for this page.