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Harley Code B1345: Troubleshooting and Fixing Tips

by

Chase Manhattan

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Owner and Editor at The Wrench Network

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Hey y’all, it’s Chase Manhattan! I’m a life-long automotive and motorcycle enthusiast with a knack for diagnostics that I hope to share with you! Lately, I’ve been running my own motorcycle rental business, which you can read about here, and it has been a great experience that has allowed me to own numerous bikes that I probably couldn’t justify otherwise. Plus, it’s been a great way to experience new places while on vacation. If you haven’t heard of them before, I definitely recommend checking out the Riders-Share platform if you get the itch to ride while away from home, or if you want to explore a cheaper way to own and ride motorcycles!

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If you are a Harley-Davidson owner and have come across the B1345 code, you may be wondering what it means and what you should do next. This code is related to the front right speaker on your bike and indicates that it may be shorted together.

While it may seem like a minor issue, ignoring the B1345 code can lead to further problems with your bike’s electrical system. It is important to address the issue as soon as possible to prevent any potential damage to your bike.

In this article, we will discuss the B1345 code in more detail, including its causes, symptoms, and possible solutions. We will also provide you with some tips on how to troubleshoot the issue and what to do if you are unable to resolve it on your own.

Understanding Harley Code B1345

If you own a Harley-Davidson motorcycle and have encountered code B1345, it’s important to understand what it means and how to resolve the issue. This trouble code is related to the heated backlite input circuit and can cause several problems with your bike’s performance. In this section, we’ll discuss the symptoms of code B1345 and its potential causes.

Symptoms of Code B1345

When your Harley-Davidson motorcycle displays code B1345, you may experience several symptoms. These include:

  • The check engine light may come on
  • The heated backlite may not work properly
  • The heated backlite may remain on even when the bike is turned off
  • The heated backlite may not turn on at all

If you notice any of these symptoms, it’s important to address the issue as soon as possible to prevent further damage to your bike.

Potential Causes

There are several potential causes of code B1345 in your Harley-Davidson motorcycle. These include:

  • A short circuit in the heated backlite input circuit
  • A damaged or faulty heated backlite switch
  • A damaged or faulty heated backlite relay
  • A damaged or faulty heated backlite module
  • A damaged or faulty wiring harness or connector

To diagnose the cause of code B1345, you’ll need to perform a series of tests on your bike’s electrical system. This may involve checking the wiring harness and connectors for damage, testing the heated backlite switch and relay, and checking the heated backlite module for faults.

In conclusion, code B1345 in your Harley-Davidson motorcycle can cause several problems with your bike’s performance. By understanding the symptoms and potential causes of this trouble code, you can diagnose and resolve the issue quickly and effectively.

Diagnostic Procedures

If you have received the B1345 diagnostic trouble code on your Harley-Davidson motorcycle, it’s important to follow a systematic approach to diagnose the underlying issue. In this section, we will outline the initial checks and advanced diagnostics that you can perform to identify the problem.

Initial Checks

Before you dive into advanced diagnostics, there are a few initial checks you can perform to ensure that the issue is not caused by a simple problem that can be easily fixed. Here are some things you can check:

  • Check the battery voltage: Make sure that the battery voltage is within the recommended range. A low battery voltage can cause a variety of issues, including DTCs.
  • Check the fuel pump: Ensure that the fuel pump is working correctly. A faulty fuel pump can cause a variety of issues, including DTCs.
  • Check the ignition: Verify that the ignition system is working correctly. A faulty ignition system can cause a variety of issues, including DTCs.

Once you have performed these initial checks, you can move on to advanced diagnostics.

Advanced Diagnostics

To accurately diagnose the B1345 DTC code, you will need to follow a systematic approach. Here are the steps you can take to identify the underlying issue:

  1. Connect a diagnostic scanner to the vehicle’s OBD-II port and retrieve the DTC codes. If the B1345 code appears along with other related codes, make sure to address those issues as well.
  2. Check the wiring and connectors: Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace any damaged components.
  3. Check the ECM: Verify that the ECM is working correctly. A faulty ECM can cause a variety of issues, including DTCs.
  4. Check the front right speaker: Ensure that the front right speaker is not shorted together. A shorted speaker can cause a variety of issues, including DTCs.

By following these advanced diagnostics, you should be able to identify the underlying issue that is causing the B1345 DTC code. If you are unsure about any of the steps, we recommend consulting with a certified Harley-Davidson mechanic to ensure that the issue is resolved correctly.

Electrical Components Involved

When it comes to Harley code B1345, there are a few electrical components involved that you should be aware of. These include the battery, ignition, and the Body Control Module (BCM). In this section, we’ll take a closer look at each of these components and how they relate to the B1345 code.

Battery and Ignition

The battery and ignition are two critical components of your Harley that can affect the B1345 code. If your battery is weak or failing, it can cause issues with the BCM and trigger the B1345 code. Similarly, if your ignition is not functioning correctly, it can cause communication errors between the BCM and other components, leading to the B1345 code.

To avoid issues with the battery and ignition, it’s essential to keep them well-maintained. Make sure to check your battery regularly and replace it when necessary. Additionally, ensure that your ignition system is functioning correctly by checking the spark plugs and other ignition components regularly.

Body Control Module (BCM)

The Body Control Module (BCM) is the primary component involved in the B1345 code. It’s responsible for controlling various electrical components throughout your Harley, including the fuel pump, ignition, and lighting. If the BCM detects an issue with any of these components, it can trigger the B1345 code.

To diagnose issues with the BCM, you’ll need to use a diagnostic tool to read the error codes. Once you’ve identified the issue, you can then replace the faulty component or repair any damaged wiring or connectors.

In summary, the battery, ignition, and BCM are all critical components involved in the B1345 code. By keeping these components well-maintained and monitoring them regularly, you can avoid issues with the B1345 code and keep your Harley running smoothly.

Common Harley Electrical Issues

If you own a Harley Davidson motorcycle, you might have encountered some electrical issues. Electrical problems can be frustrating and can affect your riding experience. In this section, we will discuss some common Harley electrical issues and how to troubleshoot them.

Ignition Switch Problems

The ignition switch is an essential component of your Harley’s electrical system. If you experience problems starting your bike, it could be due to a faulty ignition switch. Symptoms of a bad ignition switch include:

  • No power to the starter motor
  • No lights or accessories
  • The engine cranks but doesn’t start

To troubleshoot the ignition switch, you can use a multimeter to check if there is power going to the switch. If there is no power, you might need to replace the switch.

Fuel System Malfunctions

Fuel system malfunctions are another common electrical issue in Harley Davidson motorcycles. Some common fuel system issues include:

  • Fuel Signal Low
  • Fuel Signal High
  • Fuel Level Sender

If you experience any of these issues, your bike might not start or could stall while riding. To troubleshoot fuel system issues, you can use a diagnostic tool to read the DTC codes. Harley Davidson bikes have a built-in diagnostic system that can help you identify the problem. For example, if you get the B1345 code, it indicates a Front Right Speaker Shorted Together.

In conclusion, electrical issues are common in Harley Davidson motorcycles. If you experience any problems, it’s essential to troubleshoot them as soon as possible. You can use the information provided in this section to help you identify and fix common electrical issues in your Harley.

Repair and Maintenance Tips

If you are experiencing Harley code B1345, there are a few things you can do to ensure that your motorcycle is running smoothly. Here are some preventative measures and troubleshooting techniques that you can use to keep your Harley in top condition.

Preventative Measures

One of the most important things you can do to prevent Harley code B1345 is to keep your battery in good condition. Make sure that your battery is fully charged and that the terminals are clean and tight. You should also check your run/stop switch and fuel pump regularly to ensure that they are functioning properly.

Regular maintenance is also key to preventing Harley code B1345. Make sure that you follow the manufacturer’s recommended maintenance schedule and that you keep your motorcycle in good working order. This includes checking your oil levels, replacing your air filter, and inspecting your brakes and tires.

Troubleshooting Techniques

If you are experiencing Harley code B1345, there are a few things you can do to troubleshoot the issue. First, check the wiring harness and connectors for any signs of damage or wear. If you find any issues, repair or replace the affected parts as necessary.

You should also check the battery voltage and make sure that it is at least 12.5 volts. If the battery voltage is low, charge the battery or replace it if necessary. Additionally, check the fuses for the BCM and make sure that they are not blown.

If you have tried these troubleshooting techniques and are still experiencing Harley code B1345, it may be time to take your motorcycle to a professional mechanic. A qualified mechanic will be able to diagnose the issue and provide you with the necessary repairs to get your Harley back on the road.

Harley-Davidson Specific Features

If you own a Harley-Davidson motorcycle, you know that it comes with a lot of specific features that make it unique. In this section, we will discuss some of the most important ones, including security and safety systems, infotainment, and control modules.

Security and Safety Systems

Harley-Davidson motorcycles come with a variety of security and safety systems to protect you and your bike. One of the most important is the security antenna, which is designed to prevent theft by disabling the ignition system if the bike is moved without the key fob present. This feature is especially useful if you park your bike in a public place or leave it unattended for any length of time.

Another safety feature is the ABS (Anti-lock Braking System), which helps prevent skidding and loss of control during sudden stops or emergency braking. This system is designed to provide maximum braking power while maintaining stability, even on wet or slippery roads.

Infotainment and Control Modules

Harley-Davidson motorcycles also come with a variety of infotainment and control modules to enhance your riding experience. One of the most popular is the radio, which allows you to listen to your favorite music or radio stations while you ride. The radio voltage is also monitored by the bike’s onboard diagnostic system, so any issues with the radio power supply will be detected and reported.

Other control modules include the audio amplifier and speaker system, which provide high-quality sound for your music or phone calls. If you encounter any issues with the audio system, you can check the diagnostic trouble codes (DTCs) to identify the problem. For example, DTC B1345 indicates a front right speaker shorted together.

In conclusion, Harley-Davidson motorcycles come with a range of specific features that make them unique. From security and safety systems to infotainment and control modules, these features enhance your riding experience and help keep you safe on the road.

Trouble Codes Related to B1345

If your Harley-Davidson motorcycle is experiencing trouble with the Heated Backlite Input Circuit Short to Ground, you may also encounter other trouble codes that are related to B1345. In this section, we’ll explore some of the most common codes that are associated with B1345.

Understanding DTCs

DTC stands for Diagnostic Trouble Code. It’s a code that is stored in your motorcycle’s computer when the computer detects a problem with one of the systems in your motorcycle. The DTC provides information about the problem, and it can help you diagnose and fix the issue.

Resolving Multiple Codes

If you’re experiencing multiple trouble codes, it’s essential to address each code individually. Start by addressing the code that is causing the most significant issue. Once you’ve fixed that code, clear the codes and test ride your motorcycle. If you’re still experiencing trouble, move on to the next code.

Here are some of the trouble codes that are related to B1345:

  • Pending: A pending code is a code that has been detected but hasn’t been confirmed yet. It means that the computer has detected a problem, but it needs to see the problem occur again to confirm it.

  • B1103: This code indicates a problem with the left turn signal. It could be a wiring issue or a problem with the turn signal itself.

  • B1153: This code indicates a problem with the right turn signal. It could be a wiring issue or a problem with the turn signal itself.

  • B1200: This code indicates a problem with the fuel sender. It could be a wiring issue or a problem with the fuel sender itself.

  • Trouble Code: This code indicates a problem with one of the systems in your motorcycle. The code will provide information about the problem, and it can help you diagnose and fix the issue.

By understanding DTCs and addressing multiple codes individually, you can diagnose and fix the issues that are related to B1345.

Conclusion

In conclusion, the B1345 DTC code is related to the heated backlite input circuit short to ground on Harley-Davidson motorcycles. This code can be caused by damaged components, broken, bent, pushed out, or corroded connector pins. To fix this issue, you will need to visually inspect the related wiring harness and connectors and repair or replace any damaged parts.

If you’re a car enthusiast or a professional mechanic, you may already be familiar with Diagnostic Trouble Codes (DTCs). Harley-Davidson uses a similar system to help diagnose issues with their motorcycles. The B1345 code is just one of many codes that you may encounter while working on your Harley.

Remember to always refer to your Harley-Davidson service manual for specific information on your motorcycle. This will help you diagnose and repair any issues that may arise. If you’re not comfortable working on your motorcycle yourself, it’s always best to take it to a professional mechanic who has experience with Harley-Davidson motorcycles.

Overall, the B1345 DTC code is a common issue that can be easily fixed with the right tools and knowledge. By following the steps outlined in this article and using your Harley-Davidson service manual, you can diagnose and repair this issue quickly and get back to enjoying your ride.

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