Engine-Codes.com
Engine-Codes – GMC – B1045 2016 GMC Sierra

B1045 2016 GMC Sierra Code - Left Rear Door Audio Output 3 Circuit

Quick Answer

The B1045 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to an issue with the Left Rear Door Audio Output 3 Circuit. Common causes include Damaged wiring in the left rear door, Faulty connectors in the audio output circuit, Malfunctioning audio control module. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
B1045 2016 GMC Sierra indicates Left Rear Door Audio Output 3 Circuit.
Common causes
Common causes include Damaged wiring in the left rear door, Faulty connectors in the audio output circuit, Malfunctioning audio control module.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 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 B1045 2016 GMC Sierra Description

The B1045 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to an issue with the Left Rear Door Audio Output 3 Circuit. This code indicates a problem with the audio system in the left rear door of the vehicle. The audio output circuit is responsible for transmitting sound signals from the audio system to the speakers in the left rear door. When this circuit malfunctions, it can result in various audio-related issues in the vehicle.

OBDII Code B1045 2016 GMC Sierra - Left Rear Door Audio Output 3 Circuit
B1045 2016 GMC Sierra Code - Left Rear Door Audio Output 3 Circuit

Common Causes of B1045 2016 GMC Sierra

  1. Damaged wiring in the left rear door
  2. Faulty connectors in the audio output circuit
  3. Malfunctioning audio control module
  4. Water damage to the audio system components
  5. Corrosion in the audio output circuit

Symptoms of B1045 2016 GMC Sierra

  1. No sound coming from the left rear speakers
  2. Distorted sound quality from the left rear speakers
  3. Inability to adjust volume or speaker balance in the left rear door
  4. Audio system controls in the left rear door not responding

How to Fix B1045 2016 GMC Sierra

  1. Begin by inspecting the wiring and connectors in the left rear door for any visible damage or corrosion.
  2. Test the audio control module to determine if it is functioning properly or needs to be replaced.
  3. Repair or replace any damaged wiring or connectors in the audio output circuit.
  4. Clear the DTC from the vehicle's memory using a diagnostic scan tool.
  5. Test the audio system to ensure that the issue has been resolved and that sound is coming from the left rear speakers as expected.

Cost to Fix B1045 2016 GMC Sierra

The typical repair costs for addressing the B1045 code on a 2016 GMC Sierra can range from $150 to $400, depending on the extent of the damage and the specific components that need to be replaced. This estimate includes parts and labor. It's important to note that the actual cost may vary based on factors such as the location of the repair shop, the make and model of the vehicle, and the type of engine. Additionally, diagnostic time and labor rates at auto repair shops can vary, with rates typically ranging from $80 to $150 per hour. It's recommended to consult with a professional mechanic for a more accurate cost estimate based on the specific circumstances of the vehicle.

What does this mean?

Tech Notes for B1045 2016 GMC Sierra

B1045:01 Left Rear Door Audio Output 3 Circuit Short to Battery

B1045:02 Left Rear Door Audio Output 3 Circuit Short to Ground

B1045:04 Left Rear Door Audio Output 3 Circuit Open









User Submitted Video

Need more information about the B1045 2016 GMC Sierra code?

Need more information on how to fix the B1045 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1045 2016 GMC Sierra 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 B1045 2016 GMC Sierra Code

1. What are common symptoms of OBDII code B1045 on a 2016 GMC Sierra related to the Left Rear Door Audio Output 3 Circuit?

- Common symptoms include no sound from the left rear speaker, distorted audio, or complete audio failure from that specific speaker.

2. What are the possible causes of OBDII code B1045 in a 2016 GMC Sierra indicating an issue with the Left Rear Door Audio Output 3 Circuit?

- Possible causes include a faulty speaker, damaged wiring, loose connections, or a malfunctioning audio amplifier in the left rear door.

3. How can I diagnose the OBDII code B1045 on my 2016 GMC Sierra that points to the Left Rear Door Audio Output 3 Circuit issue?

- You can start by visually inspecting the speaker, wiring, and connections in the left rear door. Using a multimeter to check for continuity and proper voltage can help pinpoint the problem.

4. Is it possible to repair OBDII code B1045 related to the Left Rear Door Audio Output 3 Circuit in a 2016 GMC Sierra without professional help?

- Depending on your familiarity with automotive electronics, you may be able to repair the issue by replacing a faulty speaker, repairing damaged wiring, or securing loose connections. However, complex problems may require professional assistance.

5. Can OBDII code B1045 on a 2016 GMC Sierra indicating a problem with the Left Rear Door Audio Output 3 Circuit be reset without fixing the underlying issue?

- Resetting the code without addressing the root cause, such as a faulty speaker or wiring problem, is not recommended. The issue will likely persist, and the code will reappear after a reset.

6. Are there any specific tools or equipment needed to diagnose and repair OBDII code B1045 in a 2016 GMC Sierra related to the Left Rear Door Audio Output 3 Circuit?

- Basic tools like a multimeter, wire strippers, electrical tape, and a screwdriver may be necessary for diagnosing and repairing issues with the left rear door audio output circuit.

7. What should I do if I encounter intermittent audio issues in the left rear door of my 2016 GMC Sierra, possibly related to OBDII code B1045?

- If you experience intermittent audio problems, it's crucial to inspect the speaker, wiring, and connections thoroughly. Check for any signs of damage or loose connections that may be causing the intermittent issue.

8. How can I prevent OBDII code B1045 from reoccurring after repairing the Left Rear Door Audio Output 3 Circuit problem in my 2016 GMC Sierra?

- To prevent the code from reoccurring, ensure all repairs are done correctly, use quality replacement parts if needed, and perform thorough testing to confirm that the audio output circuit in the left rear door is functioning properly.

9. Are there any common mistakes to avoid when diagnosing and repairing OBDII code B1045 in a 2016 GMC Sierra related to the Left Rear Door Audio Output 3 Circuit?

- Common mistakes to avoid include overlooking loose connections, misdiagnosing the issue as a speaker problem when it's a wiring issue, and neglecting to test the repaired circuit thoroughly before considering the problem solved.

Discuss the causes and fixes for B1045 2016 GMC Sierra OBDII Code

Submit a New Comment

Code B1045 2016 GMC Sierra comments

No comments found for this page.